forked from docs/doc-exports
Yang, Tong
6182f91ba8
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
330 lines
22 KiB
HTML
330 lines
22 KiB
HTML
<a name="mrs_01_24456"></a><a name="mrs_01_24456"></a>
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<h1 class="topictitle1">Common Sqoop Commands and Parameters</h1>
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<div id="body1595845458239"><div class="section" id="mrs_01_24456__section11239193217156"><h4 class="sectiontitle">Common Sqoop commands</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="mrs_01_24456__table16371133020451" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Common Sqoop commands</caption><thead align="left"><tr id="mrs_01_24456__row1437213012452"><th align="left" class="cellrowborder" valign="top" width="30%" id="mcps1.3.1.2.2.3.1.1"><p id="mrs_01_24456__p63721030124519">Command</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="70%" id="mcps1.3.1.2.2.3.1.2"><p id="mrs_01_24456__p2372330144516">Description</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="mrs_01_24456__row1837243010459"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p1637218301458">import</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p193721630144512">Imports data to a cluster.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row33721130104512"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p837253014452">export</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p11372430134519">Exports data of a cluster.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row133728302453"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p17372123064517">codegen</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p3372130164519">Obtains data from a table in the database to generate a Java file and compress the file.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row878507470"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p19781906479">create-hive-table</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p147816019471">Creates a Hive table.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row152987014479"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p1229816017478">eval</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p1829915011473">Executes a SQL statement and view the result.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row7475130164713"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p747511012478">import-all-tables</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p1247520144717">Imports all tables in a database to HDFS.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row866915020474"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p1666980184716">job</p>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p126691403479">Generates a Sqoop job.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1887060184710"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p48701705475">list-databases</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p148705012475">Lists database names.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row33717110473"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p11370112471">list-tables</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p737310479">List table names.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row182547184713"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p1125481174714">merge</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p1925441114712">Merges data in different HDFS directories and saves the data to a specified directory.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row11370349184814"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p1537010493487">metastore</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p173701149124812">Starts the metadata database to record the metadata of a Sqoop job.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row158220499485"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p18583154974815">help</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p158384914814">Prints help information.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row5411253184813"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.1.2.2.3.1.1 "><p id="mrs_01_24456__p6411953134819">version</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.1.2.2.3.1.2 "><p id="mrs_01_24456__p19411205318487">Prints the version information.</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div class="section" id="mrs_01_24456__section36881843131517"><h4 class="sectiontitle">Common Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="mrs_01_24456__table124910480491" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Common parameters</caption><thead align="left"><tr id="mrs_01_24456__row1350174894913"><th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.2.2.2.4.1.1"><p id="mrs_01_24456__p850194884913">Category</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.2.2.2.4.1.2"><p id="mrs_01_24456__p1750748154914">Parameter</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.2.2.2.4.1.3"><p id="mrs_01_24456__p1350448174910">Description</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="mrs_01_24456__row1650448164917"><td class="cellrowborder" rowspan="7" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p1850248174913">Parameters for database connection</p>
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<p id="mrs_01_24456__p20502489498"></p>
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<p id="mrs_01_24456__p0501148144911"></p>
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<p id="mrs_01_24456__p65016489497"></p>
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<p id="mrs_01_24456__p250174819495"></p>
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<p id="mrs_01_24456__p1650948164915"></p>
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<p id="mrs_01_24456__p3503486492"></p>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p13502486498">--connect</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.2.4.1.3 "><p id="mrs_01_24456__p1650104811497">Specifies the URL for connecting to a relational database.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row45011486498"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p9501348194915">--connection-manager</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p350144819497">Specifies the connection manager class.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row19501485496"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p25064817496">--driver jdbc</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p5506488499">Specifies the driver package for database connection.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1450134874913"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p165014811494">--help</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p10504486494">Prints help information.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row145004834918"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p135018484493">--password</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p550154820491">Specifies the password for connecting to a database.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row35024864919"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p55024814912">--username</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1950184844914">Specifies the username for connecting to a database.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1550124884913"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p18519483499">--verbose</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1511648144911">Prints detailed information on the console.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row61131930175212"><td class="cellrowborder" rowspan="3" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p411333011527">import parameters</p>
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<p id="mrs_01_24456__p1330313010524"></p>
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<p id="mrs_01_24456__p95093305521"></p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1511333035211">--fields-terminated-by</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.2.4.1.3 "><p id="mrs_01_24456__p61131130175218">Specifies the field delimiter, which must be the same as that in a Hive table or HDFS file.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1830318303527"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p1330314308526">--lines-terminated-by</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p113031830115216">Specifies the line delimiter, which must be the same as that in a Hive table or HDFS file.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row20509103045216"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p35091830175220">--mysql-delimiters</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p125091530145214">Specifies the default delimiter settings of MySQL.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row272212307529"><td class="cellrowborder" rowspan="2" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p772323055216">export parameters</p>
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<p id="mrs_01_24456__p1792110305524"></p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p8723123012523">--input-fields-terminated-by</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.2.4.1.3 "><p id="mrs_01_24456__p1172320306526">Specifies the field delimiter.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1092193018527"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p1092143017523">--input-lines-terminated-by</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p09211330165211">Specifies the line delimiter.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row161114311520"><td class="cellrowborder" rowspan="13" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p131118315524">Hive parameters</p>
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<p id="mrs_01_24456__p2064018119544"></p>
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<p id="mrs_01_24456__p13847171165414"></p>
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<p id="mrs_01_24456__p174381218545"></p>
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<p id="mrs_01_24456__p424851217546"></p>
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<p id="mrs_01_24456__p5430512175414"></p>
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<p id="mrs_01_24456__p1960361213543"></p>
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<p id="mrs_01_24456__p3293143119523"></p>
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<p id="mrs_01_24456__p99071118567"></p>
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<p id="mrs_01_24456__p148931219560"></p>
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<p id="mrs_01_24456__p202906123562"></p>
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<p id="mrs_01_24456__p7477151212568"></p>
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<p id="mrs_01_24456__p10644161218560"></p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p911163117520">--hive-delims-replacement</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.2.4.1.3 "><p id="mrs_01_24456__p121124316528">Replaces characters such as <strong id="mrs_01_24456__b178918547553">\r</strong> and <strong id="mrs_01_24456__b4729900568">\n</strong> in data with user-defined characters.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1464031114549"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p364091115549">--hive-drop-import-delims</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p464081115416">Removes characters such as <strong id="mrs_01_24456__b765111215571">\r</strong> and <strong id="mrs_01_24456__b16371810135710">\n</strong> when data is imported to Hive.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row684721115411"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p584781112543">--map-column-hive</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1684717111545">Specifies the data type of fields during the generation of a Hive table.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1543712175413"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p54311255412">--hive-partition-key</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1943412165411">Creates a partition.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1424851212548"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p1124861217546">--hive-partition-value</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1924851245418">Imports data to a specified partition of a database.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row8430151219541"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p1430171217542">--hive-home</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p11430212125414">Specifies the installation directory for Hive.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1660316121543"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p11603171219545">--hive-import</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p14603912145414">Specifies that data is imported from a relational database to Hive.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row12293163118521"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p17293123185215">--hive-overwrite</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p9293131115217">Overwrites existing Hive data.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row99073113569"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p129071411155618">--create-hive-table</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1907811155612">Creates a Hive table. The default value is <strong id="mrs_01_24456__b1251811397314">false</strong>. A destination table will be created if it does not exist.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row689171225615"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p178941213565">--hive-table</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1189212135615">Specifies a Hive table to which data is to be imported.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row829018127562"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p6290181212565">--table</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p3290121219564">Specifies the relational database table.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row8477201211569"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p124771123561">--columns</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p18477181211563">Specifies the fields of a relational data table to be imported.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1264412121566"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p186441512155612">--query</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p16644131275611">Specifies the query statement for importing the query result.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row12453143155211"><td class="cellrowborder" rowspan="2" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p12453153195210">HCatalog parameters</p>
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<p id="mrs_01_24456__p159311416581"></p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p7453163116529">--hcatalog-database</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.2.4.1.3 "><p id="mrs_01_24456__p18453113155220">Specifies a Hive database and imports data to it using HCatalog.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1459316415818"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p459317419586">--hcatalog-table</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p8593184105812">Specifies a Hive table and imports data to it using HCatalog.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row20785942588"><td class="cellrowborder" rowspan="10" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p127851418582">Others</p>
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<p id="mrs_01_24456__p796212435819"></p>
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<p id="mrs_01_24456__p715013520589"></p>
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<p id="mrs_01_24456__p2031195105819"></p>
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<p id="mrs_01_24456__p1548275115814"></p>
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<p id="mrs_01_24456__p1221993320114"></p>
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<p id="mrs_01_24456__p9443183314120"></p>
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<p id="mrs_01_24456__p762393315115"></p>
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<p id="mrs_01_24456__p97853331518"></p>
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<p id="mrs_01_24456__p20557142212216"></p>
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</td>
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<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p47859475814">-m or --num-mappers</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.2.2.2.4.1.3 "><p id="mrs_01_24456__p17785134155816">Specifies the number of map tasks used by a Sqoop job.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row096216495819"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p1296210475815">--split-by</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p39627425814">Specifies the column based on which Sqoop splits work units. This parameter is used together with <strong id="mrs_01_24456__b792046151913">-m</strong>.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row21491359587"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p1415010595817">--target-dir</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1715019512582">Specifies the temporary directory of HDFS.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row1231035155815"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p13118535810">--null-string string</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p5311555585">Specifies the string to be written for a null value for string columns.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row3482155155813"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p948217555810">--null-non-string</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p64823517586">Specifies the string to be written for a null value for non-string columns.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row821916331113"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p021911331219">--check-column</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p721910331919">Specifies the column for determining incremental data import.</p>
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</td>
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</tr>
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<tr id="mrs_01_24456__row154431733411"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p1559512561811">--incremental append or lastmodified</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p37993124218">Incrementally imports data.</p>
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<p id="mrs_01_24456__p1685417545416"><strong id="mrs_01_24456__b65111817678">append</strong>: appends records, for example, appending records that are greater than the value specified by <strong id="mrs_01_24456__b551281716715">last-value</strong>.</p>
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<p id="mrs_01_24456__p683741014416"><strong id="mrs_01_24456__b1180161916710">lastmodified</strong>: appends data that is modified after the date specified by <strong id="mrs_01_24456__b198115199715">last-value</strong>.</p>
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</td>
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</tr>
|
|
<tr id="mrs_01_24456__row762353310116"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p662310331914">--last-value</p>
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</td>
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<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p1362314331110">Specifies the last value of the check column from the previous import.</p>
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</td>
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</tr>
|
|
<tr id="mrs_01_24456__row87851233819"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p1878616334113">--input-null-string</p>
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</td>
|
|
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p978615331812">Specifies the string to be interpreted as <strong id="mrs_01_24456__b157461724173916">NULL</strong> for string columns.</p>
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</td>
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</tr>
|
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<tr id="mrs_01_24456__row1355782219211"><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.1 "><p id="mrs_01_24456__p12557132212213">--input-null-non-string</p>
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</td>
|
|
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.2.4.1.2 "><p id="mrs_01_24456__p05571122921">Specifies the string to be interpreted as null for non-string columns. If this parameter is not specified, <strong id="mrs_01_24456__b1566182318403">NULL</strong> will be used.</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="mrs_01_24453.html">Using Sqoop</a></div>
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</div>
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</div>
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