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doc-exports/docs/dws/tool/DWS_DS_040.html
luhuayi a5e3903f6b DWS TG 910.211 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: luhuayi <luhuayi@huawei.com>
Co-committed-by: luhuayi <luhuayi@huawei.com>
2025-04-23 13:53:01 +00:00

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<a name="EN-US_TOPIC_0000001813598528"></a><a name="EN-US_TOPIC_0000001813598528"></a>
<h1 class="topictitle1">FAQs</h1>
<div id="body1584526252532"><ol id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_ol28525238"><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li21418771"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b58551215">What do I need to check if my connection fails?</strong><p class="litext" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p57198891"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b45027976">Answer</strong>: Check the following items:</p>
<ul class="subitemlist" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_ul2598608"><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li23387474">Check whether <strong id="EN-US_TOPIC_0000001813598528__b50670156093527">Connection Properties</strong> are properly configured.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li15337269">Check whether the server version is compatible with the client version.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li3817695">Check whether the <strong id="EN-US_TOPIC_0000001813598528__b129981277393527">database\pg_hba.conf</strong> file is correctly configured.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li40797849">Check whether the <strong id="EN-US_TOPIC_0000001813598528__b46723361593527">Data Studio.ini</strong> file is correctly configured.</li></ul>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li31636323"><strong id="EN-US_TOPIC_0000001813598528__b188157139493527">Why does the connection succeed when I try connecting to another server using an SSL certificate?</strong><p class="litext" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p44539515"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b65311315">Answer</strong>: If the same SSL certificates are used by different servers, then the second connection will succeed because the certificates are cached.</p>
<p class="litext" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p50930930">When you establish a connection with a different server using different SSL certificates, the connection will fail due to certificate mismatch.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li35088084"><strong id="EN-US_TOPIC_0000001813598528__b1639931101111">When I right-click on a function/procedure and refresh it in </strong><strong id="EN-US_TOPIC_0000001813598528__b149887124093527">Object Browser</strong><strong id="EN-US_TOPIC_0000001813598528__b23933151110">, why does the function/procedure disappear?</strong><p class="litext" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p29520332"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b64356400">Answer</strong>: This problem may occur if you drop a function/procedure and recreate it. In this case, refresh the parent folder to view the function/procedure in <strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b42336695">Object Browser</strong>.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li45699530"><strong id="EN-US_TOPIC_0000001813598528__b6321947161113">What do I do if a critical error occurs in a database session and operations cannot proceed?</strong><p class="litext" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p8642591"><strong id="EN-US_TOPIC_0000001813598528__b15794155015111">Answer</strong>: Critical error may occur in some of the following cases. Check whether:</p>
<ul class="subitemlist" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_ul28961294"><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li59325057">The connection is left idle for a long time and has timed out.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li64163473">The server is running.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li40600350">The server has sufficient memory and whether the Out Of Memory (OOM) error is reported to the server.</li></ul>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li294043"><strong id="EN-US_TOPIC_0000001813598528__b1312337131014">What is a constraint?</strong><p class="litext" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p23817504"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b13030950">Answer</strong>: Constraints are used to deny the insertion of unwanted data in columns. You can create restrictions on one or more columns in any table. It maintains the data integrity of the table.</p>
<p class="litext" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p50169686">The following constraints are supported:</p>
<ul class="subitemlist" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_ul48873995"><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li37212772">Primary Key constraint</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li66479500">Unique Key constraint</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li16130451">Check constraint</li></ul>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li31498117"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b15047603">What is an index?</strong><p class="litext" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1210700"><strong id="EN-US_TOPIC_0000001813598528__b54481659151920">Answer</strong>: An index is a copy of selected columns of data, from a table, that is designed to enable very efficient search. It also includes a low level disk block address or a direct link to the complete row of data it was copied from.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li30957904"><strong id="EN-US_TOPIC_0000001813598528__b198718292393527">What is the default encoding for Data Studio's files?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p24845910"><strong id="EN-US_TOPIC_0000001813598528__b139635221593527">Answer</strong>: Exported, imported, and system files are encoded with the system's default encoding as configured in <strong id="EN-US_TOPIC_0000001813598528__b486241493527">Settings</strong> &gt; <strong id="EN-US_TOPIC_0000001813598528__b153502801793527">Preferences</strong>. The default encoding is UTF-8.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li1176957518580"><strong id="EN-US_TOPIC_0000001813598528__b67822412293527">When I try to open Data Studio, the system displays a message indicating that Data Studio does not support opening multiple instances. Why do I get this error message?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p3478182218584"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b4229287185829">Answer</strong>: A user cannot open multiple instances in Data Studio.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li36620055102245"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b31012723142620">What do I do if a DDL statement running indefinitely and cannot be canceled?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p122531247164716"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b425324713472">Answer</strong>: This problem may occur if other DML/DDL operations are being performed on the same object. In this case, stop all the DML/DDL operations on the object and try again. If the problem persists, there may be another user performing DML/DDL operations on the object. Try again later. You can customize table data and check the operations in a transaction by following the instructions provided in <a href="dws_07_0012.html#EN-US_TOPIC_0000001860318645__section18536183110235">Data Studio GUI</a>.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li8159750174716"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b22508176595">Why is the exported query result different from the data available on the Results tab?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1397031355918"><strong id="EN-US_TOPIC_0000001813598528__b103478885093527">Answer</strong>: When a result set data is exported, a new connection is used to execute the query again. The exported results may be different from the data on the <strong id="EN-US_TOPIC_0000001813598528__b118686717793527">Result</strong> tab.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li2711649114617"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b3861162919470">Why does last login information show "Last login details not available"?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p159731022477"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b1631272519479">Answer</strong>: This message is displayed when you connect to the database server of an earlier version or log in to the database for the first time after it is created.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li93927325525"><strong id="EN-US_TOPIC_0000001813598528__b180703140893527">Why is the error marked incorrectly in SQL Terminal?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1014154935314"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b20591226122919">Answer</strong>: This problem occurs when the server returns an incorrect line number. You can view the error message on the <strong id="EN-US_TOPIC_0000001813598528__b160027295293527">Message</strong> tab and locate the correct row to rectify the fault.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li4521220718"><strong id="EN-US_TOPIC_0000001813598528__b17633332141">Will deleted columns be displayed after "Show DDL" or "Export DDL" operations?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1349611191678"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b179773171676">Answer</strong>: Yes.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li1750184742618"><strong id="EN-US_TOPIC_0000001813598528__b159472925593527">Why cannot Data Studio be started after the -Xmx parameter is modified?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p82461632279"><strong id="EN-US_TOPIC_0000001813598528__b18924330593527">Answer</strong>: The value of <strong id="EN-US_TOPIC_0000001813598528__b147595993093527">-Xmx</strong> may be invalid. For details, see <a href="DWS_DS_007.html">Configuring Data Studio</a>.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li1698453118412"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b46078514433">How do I quickly switch to the desired tab if there are multiple tabs open?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p19214185834119"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b1552835517410">Answer</strong>: If the number of opened tabs reaches a certain limit (depending on your screen resolution), the <span><img id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_image567195151719" src="figure/en-us_image_0000001813439260.png"></span> icon will be displayed at the end of the tab list. Click this icon and select the required tab from the drop-down list. If this icon is not available, use the tooltip to identify the tabs. You also search for a <strong id="EN-US_TOPIC_0000001813598528__b72087449993527">SQL Terminal</strong> tab by its name. For example:</p>
<ul id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_ul336005692814"><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li03601256122814">*s, this displays all Terminal names that start with s.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li17587503308">test, this displays all Terminal names that start with test.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li122881624133014">*2, this displays all Terminal names that contain 2 in them.</li></ul>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li1741173016206"><strong id="EN-US_TOPIC_0000001813598528__b12103195814182">Why does the language not change after I change the language setting and restart Data Studio?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p21541602112"><strong id="EN-US_TOPIC_0000001813598528__b55492121912">Answer</strong>: If the language you selected does not change after restarting, you can restart Data Studio manually to make the change take effect.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li11255104915714"><strong id="EN-US_TOPIC_0000001813598528__b148901044192010">Why does the last login details information not display?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p99862030125818"><strong id="EN-US_TOPIC_0000001813598528__b716745852113">Answer</strong>: At times the server returns an error while trying to fetch last login details. In such scenarios the last login pop-up message does not display.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li6527142995817"><strong id="EN-US_TOPIC_0000001813598528__b697484742219">When viewing/exporting DDL, why does the Chinese text not show properly?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p185307293588"><strong id="EN-US_TOPIC_0000001813598528__b2067501132317">Answer</strong>: This happens if the SQL, DDL, object names or data contains Chinese text and the Data Studio file encoding is not set to <strong id="EN-US_TOPIC_0000001813598528__b165951118142119">GBK</strong>. To solve this, go to <strong id="EN-US_TOPIC_0000001813598528__b847542617216">Settings</strong> &gt; <strong id="EN-US_TOPIC_0000001813598528__b43481629132114">Preferences</strong> &gt; <strong id="EN-US_TOPIC_0000001813598528__b116923272111">Environment</strong> &gt; <strong id="EN-US_TOPIC_0000001813598528__b14741835132114">File Encoding</strong> and set the encoding to <strong id="EN-US_TOPIC_0000001813598528__b1685319231215">GBK</strong>. The supported combinations of Database and Data Studio encoding for export operation are shown in <a href="#EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_table061484013587">Table1 Supported combinations of file encoding</a>.</p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p12128185611245"><strong id="EN-US_TOPIC_0000001813598528__b17511191132613">To open/view the exported files in Windows Explorer</strong>: Files exported with UTF-8 encoding can be opened/viewed by double-clicking it or by right-clicking on the file and selecting <strong id="EN-US_TOPIC_0000001813598528__b1186231592617">Open</strong>. Files exported with GBK encoding must be opened in Excel using the import external data feature (<strong id="EN-US_TOPIC_0000001813598528__b3814221162616">Data</strong> &gt; <strong id="EN-US_TOPIC_0000001813598528__b11976182320261">Get External Data</strong> &gt; From <strong id="EN-US_TOPIC_0000001813598528__b1458652682611">Text</strong>).</p>
<div class="tablenoborder"><a name="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_table061484013587"></a><a name="en-us_topic_0185264547_table061484013587"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_table061484013587" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Supported combinations of file encoding</caption><thead align="left"><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row13611144015814"><th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.1.18.4.2.5.1.1"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p18658615191019"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b196581215101019">Database Encoding</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.1.18.4.2.5.1.2"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p13658131510105"><strong id="EN-US_TOPIC_0000001813598528__b6493544312">Data Studio File Encoding</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.1.18.4.2.5.1.3"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1765821511101"><strong id="EN-US_TOPIC_0000001813598528__b956512564432">Support for Chinese Text in Table Names</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.1.18.4.2.5.1.4"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p12658115181014"><strong id="EN-US_TOPIC_0000001813598528__b12458102494419">Support for English Text in Table Names</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row16123409586"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p261154018584">GBK</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p186116400588">GBK</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p888955015">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.4 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p164021410004">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row126121840195818"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p6612114045816">GBK</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p2612134085815">UTF-8</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p2885511016">No - Incorrect details</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.4 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p14021210600">No - Incorrect details</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row2612164075811"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1961264035813">UTF-8</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p56126408588">GBK</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1088175501">No - Export Fails</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.4 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p11403181015018">No - Incorrect details</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row10612154035818"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p10612174065816">UTF-8</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p0612124045814">UTF-8</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1189135704">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.4 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p640318107019">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row1546816488379"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p252818186443">UTF-8</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p052813185447">LATIN1</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1469184813373">No - Export Fails</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.4 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p17469124813710">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row96141340175816"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p56141040135819">SQL_ASCII</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p116141040165816">GBK</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p3891753018">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.4 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p134036102018">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row11614114005811"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p261454055815">SQL_ASCII</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p156145402586">UTF-8</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p14891251805">No - Incorrect details</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.18.4.2.5.1.4 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p6403201014014">No - Incorrect details</p>
</td>
</tr>
</tbody>
</table>
</div>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li175781450104711"><strong id="EN-US_TOPIC_0000001813598528__b14388114466">Why do I get the error message "Conversion between GBK and LATIN1 is not supported"?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p12342546496"><strong id="EN-US_TOPIC_0000001813598528__b11609162884615">Answer</strong>: This message occurs if the Data Studio and Database encoding selected are incompatible. To solve this, select the compatible encoding. Compatible encoding is shown in <a href="#EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_table987163010538">Table 2</a>.</p>
<div class="tablenoborder"><a name="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_table987163010538"></a><a name="en-us_topic_0185264547_table987163010538"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_table987163010538" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Compatible encoding formats</caption><thead align="left"><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row68714305537"><th align="left" class="cellrowborder" valign="top" width="34%" id="mcps1.3.1.19.3.2.4.1.1"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p188715306532"><strong id="EN-US_TOPIC_0000001813598528__b59991343154312">Data Studio File Encoding</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="26%" id="mcps1.3.1.19.3.2.4.1.2"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p787143017537"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_b3799121101916">Database Encoding</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="40%" id="mcps1.3.1.19.3.2.4.1.3"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p148714306530">Compatible or Not</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row1987193015534"><td class="cellrowborder" rowspan="3" valign="top" width="34%" headers="mcps1.3.1.19.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p687730105315">UTF-8</p>
</td>
<td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.1.19.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p128753055319">GBK</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.1.19.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p68733018539">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row158783085314"><td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p58873012531">LATIN1</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p3968154311583">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row2088430135314"><td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p3882306530">SQL_ASCII</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p38883055315">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row0889307534"><td class="cellrowborder" rowspan="3" valign="top" width="34%" headers="mcps1.3.1.19.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p15883303536">GBK</p>
</td>
<td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.1.19.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p28815309538">UTF-8</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.1.19.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1088153045316">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row17360182516567"><td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p7361132517568">LATIN1</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1361122516564">No</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row197153317560"><td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1797433175619">SQL_ASCII</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p19753313565">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row557321525710"><td class="cellrowborder" rowspan="3" valign="top" width="34%" headers="mcps1.3.1.19.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p657315157574">SQL_ASCII</p>
</td>
<td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.1.19.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p0573151575715">UTF-8</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.1.19.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p145741315195719">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row19448123614578"><td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p7448103625711">LATIN1</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p194481236135711">Yes</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row1810717411573"><td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p20107141105717">GBK</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.19.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1110713419576">Yes</p>
</td>
</tr>
</tbody>
</table>
</div>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li418615410553"><strong id="EN-US_TOPIC_0000001813598528__b1017555514817">Why is the PL/SQL procedure I compiled and executed is saved as PL/SQL function?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1271519126011"><strong id="EN-US_TOPIC_0000001813598528__b13245245501">Answer</strong>: The database does not differentiate between PL/SQL function and procedure. All procedures in databases are functions. Hence PL/SQL procedure is saved as PL/SQL function.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li10983163394718"><strong id="EN-US_TOPIC_0000001813598528__b7947142598">Why is that I am not able to edit the distribution key?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1480318106017"><strong id="EN-US_TOPIC_0000001813598528__b168121528135918">Answer</strong>: The database allows you to edit the distribution key only for the first insert operation.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li11185135415166"><strong id="EN-US_TOPIC_0000001813598528__b383413538599">While editing table data if I do not enter a value for default value column, will the value be added by the database server?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p82419512177"><strong id="EN-US_TOPIC_0000001813598528__b1929916612113">Answer</strong>: Yes, the database server will add the value but the value will not be visible after save in the <strong id="EN-US_TOPIC_0000001813598528__b13634720215">Edit Table Data</strong> tab. Use the refresh option from the <strong id="EN-US_TOPIC_0000001813598528__b1953103714114">Edit Table Data</strong> tab or re-open the table again to view the added default value(s).</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li12493174332812"><strong id="EN-US_TOPIC_0000001813598528__b56999375108">While modifying/deleting table data why do I get a pop-up stating that more than one matching row found?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p14838462297"><strong id="EN-US_TOPIC_0000001813598528__b15932926937">Answer</strong>: This happens because there are additional rows detected for modification/deletion based on Custom Unique Key or All Columns selection. If Custom Unique Key is selected, then it will delete/modify the rows that have exact match of the data in the column selected for deletion/modification. If All Columns is selected, then it will delete/modify the rows that match data in all columns. Hence the duplicate records matching the Custom Unique Key or All Columns will be deleted/modified if Yes is selected. If No is selected, the row that is not saved will be marked for correction.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li1118362413404"><strong id="EN-US_TOPIC_0000001813598528__b49414511115">When I right-click on a text box I see additional context menu options. Why does this happen?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1971026184012"><strong id="EN-US_TOPIC_0000001813598528__b1965813384919">Answer</strong>: The additional context menu options like Right to left Reading order, Show Unicode control characters and so on are provided by Windows 7 in case the keyboard you are using supports right to left and left to right input.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li1037472864716"><a name="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li1037472864716"></a><a name="en-us_topic_0185264547_li1037472864716"></a><strong id="EN-US_TOPIC_0000001813598528__b196001750121017">What are the objects that are not supported for batch export DDL &amp; DDL and Data operations?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p6938184754719"><strong id="EN-US_TOPIC_0000001813598528__b16916122531113">Answer</strong>: Following objects are not supported for DDL &amp; DDL and Data operations.</p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p193326584471"><strong id="EN-US_TOPIC_0000001813598528__b18811151161115">Export DDL:</strong></p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p57677504497">Connection, database, foreign table, sequence, column, index, constraint, partition, function/procedure group, regular tables group, views group, schemas group, and system catalog group.</p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1392710394817"><strong id="EN-US_TOPIC_0000001813598528__b8971165171514">Export DDL and Data</strong></p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p17752336528">Connection, database, namespace, foreign table, sequence, column, index, constraint, partition, function/procedure, view, regular tables group, schemas group, and system catalog group.</p>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li18661844113712"><a name="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li18661844113712"></a><a name="en-us_topic_0185264547_li18661844113712"></a><strong id="EN-US_TOPIC_0000001813598528__b12729816172112">Will the queries in SQL Terminal be committed if the resultset is modified and saved with Reuse Connection on and Auto Commit off?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p135051338145710"><strong id="EN-US_TOPIC_0000001813598528__b80964252">Answer</strong>: No. Queries will only be committed when COMMIT command is executed in the Terminal.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_table2077943117588" frame="border" border="1" rules="all"><thead align="left"><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row67798314585"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.1.26.3.1.4.1.1"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p137791231115814">Auto Commit</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.1.26.3.1.4.1.2"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p127797310582">Reuse Connection</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.1.26.3.1.4.1.3"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p177792031195814">Resultset Save</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row197791531145818"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p277913116580">On</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p5779731195813">On</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p3779123115583">Commit</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row48685012417"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p0868101849">On</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p13868801146">Off</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p148681101341">Commit</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row92261141747"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1922610412043">Off</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1422615415416">On</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p122260410417">Does not commit</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row797411010518"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1897411017516">Off</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1597470555">Off</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.1.26.3.1.4.1.3 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1997411019516">Not supported</p>
</td>
</tr>
</tbody>
</table>
</div>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li1419181633114"><strong id="EN-US_TOPIC_0000001813598528__b4211195011286">When I query a temp table from a new SQL Terminal the resultset displays incorrect table details. Why does this happen?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1694195043317"><strong id="EN-US_TOPIC_0000001813598528__b198818314299">Answer</strong>: When you query a temp table from a new SQL Terminal or with the <strong id="EN-US_TOPIC_0000001813598528__b18918183115301">Reuse Connection</strong> off, the resultset displays information of a regular/partition/foreign table, if a table with the same name as the temp table exists.</p>
<div class="note" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_note550763391615"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p165091433101615">If the <strong id="EN-US_TOPIC_0000001813598528__b1842194114305">Reuse Connection</strong> is <strong id="EN-US_TOPIC_0000001813598528__b197331942143011">On</strong>, the resultset displays information of the temp table even if another table with the same name exists.</p>
</div></div>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li172318486165"><strong id="EN-US_TOPIC_0000001813598528__b17871901312">Which are the operations that are performed on a locked object does not run in the background but needs to be manually closed?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p7686919151717"><strong id="EN-US_TOPIC_0000001813598528__b157231022103120">Answer</strong>: Following are the operations that do not run in background while the object is locked in another operation:</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_table638512716179" frame="border" border="1" rules="all"><thead align="left"><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row133854279177"><th align="left" class="cellrowborder" colspan="2" valign="top" id="mcps1.3.1.28.3.1.3.1.1"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p12385427201711">Operations</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row13385227131718"><td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.1.28.3.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p193856279178">Renaming a table</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.1.28.3.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1836313541913">Creating a constraint</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row1115714164189"><td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.1.28.3.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p101585164187">Setting schema on table</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.1.28.3.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1629820173189">Creating an index</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row54410189185"><td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.1.28.3.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p64431891812">Setting description in table</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.1.28.3.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p853364218272">Adding column</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_row2333130152710"><td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.1.28.3.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p7333123052716">Renaming a partition</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.1.28.3.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p5333183042712">-</p>
</td>
</tr>
</tbody>
</table>
</div>
</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_li25618341380"><strong id="EN-US_TOPIC_0000001813598528__b9308143615335">Do we have a limit on the column and row size while exporting table data to excel?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264547_p1156103473811"><strong id="EN-US_TOPIC_0000001813598528__b1363421210347">Answer</strong>: Yes, xlsx format supports maximum of 1 million rows and 16384 columns and xls format supports maximum of 64,000 rows and 256 columns.</p>
</li><li id="EN-US_TOPIC_0000001813598528__li121906527504"><strong id="EN-US_TOPIC_0000001813598528__b1322512482012">How Do I Delete Objects in Batches?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p17271183741114">The batch drop operation allows you to drop multiple objects. This operation also applies to searched objects.</p>
<div class="note" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_note198171052151211"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_ul154301813183"><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li2096120514244">Batch drop is allowed only for databases.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li23851624182511">An error is reported on batch dropping system objects, which cannot be dropped.</li></ul>
</div></div>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p612144082011">Perform the following steps to batch drop objects:</p>
<p id="EN-US_TOPIC_0000001813598528__p13460175211512">Press <strong id="EN-US_TOPIC_0000001813598528__b1936955231217">Ctrl</strong> and select objects one by one or press <strong id="EN-US_TOPIC_0000001813598528__b149301618130">Shift</strong> and select objects in a bunch to select the objects to be dropped.</p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li10771338141920p0">Right-click and select <strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_b149184445483">Drop Objects</strong>.</p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p174851127132219">The <strong id="EN-US_TOPIC_0000001813598528__b1584714315155">Drop Objects</strong> tab displays the list of objects to be dropped.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_table164293493242" frame="border" border="1" rules="all"><thead align="left"><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row104291449102414"><th align="left" class="cellrowborder" valign="top" width="30%" id="mcps1.3.1.30.8.1.3.1.1"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1092857172412"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_b591994115372">Column Name</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="70%" id="mcps1.3.1.30.8.1.3.1.2"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1842920492245"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_b393034133719">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row1842984915248"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.30.8.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p3429149172411">Type</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.30.8.1.3.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1942920490245">Displays information about the object type.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row1642910498241"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.30.8.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p13429174982412">Name</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.30.8.1.3.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p154292491245">Displays the name of the object.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row16429449152418"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.30.8.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p84299491244">Query</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.30.8.1.3.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p0429144919248">Displays the query that will be executed to drop objects.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row8429949202414"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.30.8.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p4429124952413">Type</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.30.8.1.3.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p14249184815316">Displays the status of the drop operation.</p>
<ul id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_ul122502486312"><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li10251134803114">To start: The drop operation has not been started.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li112527484313">In progress: The object is being dropped.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li825474819313">Completed: The drop operation has been completed.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li0256104818319">Error: The object has not been dropped due to an error.</li></ul>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row1926115913316"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.30.8.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1926215916314">Error Message</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.30.8.1.3.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p72621197312">Displays the failure cause of a drop operation.</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="p" id="EN-US_TOPIC_0000001813598528__p17328135213517">Select the required parameters.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_table96382034123718" frame="border" border="1" rules="all"><thead align="left"><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row5639143423714"><th align="left" class="cellrowborder" valign="top" width="32%" id="mcps1.3.1.30.9.1.1.3.1.1"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1163953418373"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_b87098309528">Option</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="68%" id="mcps1.3.1.30.9.1.1.3.1.2"><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1363915343374"><strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_b19712173045218">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row063963415375"><td class="cellrowborder" valign="top" width="32%" headers="mcps1.3.1.30.9.1.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1063916341376">Cascade</p>
</td>
<td class="cellrowborder" valign="top" width="68%" headers="mcps1.3.1.30.9.1.1.3.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p36391734103714">The cascade drop operation is performed to drop dependent objects and attributes. The dropped dependent objects will be removed from <strong id="EN-US_TOPIC_0000001813598528__b7974104812172">Object Browser</strong> only after the refresh operation is performed.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row463973453714"><td class="cellrowborder" valign="top" width="32%" headers="mcps1.3.1.30.9.1.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p10639113414376">Atomic</p>
</td>
<td class="cellrowborder" valign="top" width="68%" headers="mcps1.3.1.30.9.1.1.3.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1980618945418">The atomic drop operation is performed to drop all objects. If the operation fails, no objects will be dropped.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_row11639203413719"><td class="cellrowborder" valign="top" width="32%" headers="mcps1.3.1.30.9.1.1.3.1.1 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p663910347376">No selection</p>
</td>
<td class="cellrowborder" valign="top" width="68%" headers="mcps1.3.1.30.9.1.1.3.1.2 "><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p763914342373">If neither <strong id="EN-US_TOPIC_0000001813598528__b8167221161814">Cascade</strong> nor <strong id="EN-US_TOPIC_0000001813598528__b91671821131818">Atomic</strong> is selected, no dependent objects are dropped.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li517210263372p0">Click <strong id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_b14131910480">Start</strong>.</p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p8174226133711"><strong id="EN-US_TOPIC_0000001813598528__b1232153341820">Runs</strong>: displays the number of objects that are dropped from the object list</p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1717617269371"><strong id="EN-US_TOPIC_0000001813598528__b896053921810">Errors</strong>: displays the number of objects that are not dropped due to errors</p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li1019450123811p0">Click <strong id="EN-US_TOPIC_0000001813598528__b11207154441815">Stop</strong> or close the <strong id="EN-US_TOPIC_0000001813598528__b162075445187">Drop Objects</strong> dialog box to stop the drop operation.</p>
<div class="p" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_p1365455224911">For details about copy, advanced copy, show/hide search bar, sort, and column reorder options, see <a href="DWS_DS_035.html#EN-US_TOPIC_0000001860318949__en-us_topic_0185264856_section16147111413113">Execute SQL Queries</a>.<div class="note" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_note61002515369"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_ul1380619483512"><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li7453191871116">Select part of a cell and press <strong id="EN-US_TOPIC_0000001813598528__b1717585121915">Ctrl+C</strong> or click <strong id="EN-US_TOPIC_0000001813598528__b1021241413199">Copy</strong> to copy the selected text in the cell.</li><li id="EN-US_TOPIC_0000001813598528__en-us_topic_0185263997_li7237154893016">When you select multiple objects in <strong id="EN-US_TOPIC_0000001813598528__b38341436151917">Object Browser</strong> to drop, a batch drop window is displayed and the object icons are enabled in the menu bar. If you disconnect the database, the icons will remain disabled even after reconnection. In this case, you need to reselect the objects to drop and the selected objects will be displayed in the new batch drop window.</li></ul>
</div></div>
</div>
</li><li id="EN-US_TOPIC_0000001813598528__li84357512517"><strong id="EN-US_TOPIC_0000001813598528__b151609672010">How Do I Grant or Revoke Permissions in Batches for a Specified Object?</strong><p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264338_p370353785318">You can select multiple objects at a time or search for the target objects.</p>
<p id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264338_p143571513194613">Press <strong id="EN-US_TOPIC_0000001813598528__b7486174511221">Ctrl</strong> and select objects one by one, or press <strong id="EN-US_TOPIC_0000001813598528__b316012588222">Shift</strong> and select objects in batches, and choose <strong id="EN-US_TOPIC_0000001813598528__b078991422316">Grant/Revoke</strong> from the shortcut menu.</p>
<div class="note" id="EN-US_TOPIC_0000001813598528__en-us_topic_0185264338_note179402512368"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001813598528__ul1782295510535"><li id="EN-US_TOPIC_0000001813598528__li2822355145313">Only objects with the same schema and type can be granted or revoked in batches.</li><li id="EN-US_TOPIC_0000001813598528__li7582135825319">This feature is only supported in OLAP, not in OLTP.</li></ul>
</div></div>
</li></ol>
</div>
<div>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_ds_index.html">Data Studio</a></div>
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