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doc-exports/docs/dli/sqlreference/dli_08_0058.html
Su, Xiaomeng 76a5b1ee83 dli_sqlreference_20240227 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: Su, Xiaomeng <suxiaomeng1@huawei.com>
Co-committed-by: Su, Xiaomeng <suxiaomeng1@huawei.com>
2024-03-27 22:02:33 +00:00

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<a name="dli_08_0058"></a><a name="dli_08_0058"></a>
<h1 class="topictitle1">Primitive Data Types</h1>
<div id="body8662426"><p id="dli_08_0058__en-us_topic_0093946969_a1509de56abbe43be893dca2c4df215ca"><a href="#dli_08_0058__en-us_topic_0093946969_t8554599ebef94ea49cef6d24756f2cbf">Table 1</a> lists the primitive data types supported by DLI.</p>
<div class="tablenoborder"><a name="dli_08_0058__en-us_topic_0093946969_t8554599ebef94ea49cef6d24756f2cbf"></a><a name="en-us_topic_0093946969_t8554599ebef94ea49cef6d24756f2cbf"></a><table cellpadding="4" cellspacing="0" summary="" id="dli_08_0058__en-us_topic_0093946969_t8554599ebef94ea49cef6d24756f2cbf" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Primitive data types</caption><thead align="left"><tr id="dli_08_0058__en-us_topic_0093946969_ra66e456934274197a57187a88fb958cd"><th align="left" class="cellrowborder" valign="top" width="15%" id="mcps1.3.2.2.7.1.1"><p id="dli_08_0058__en-us_topic_0093946969_a1577e599640f4890ba43bd85eaba9ee7"><strong id="dli_08_0058__en-us_topic_0093946969_ac2ffdf562df14df69dec28b06ff890be">Data Type</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="24%" id="mcps1.3.2.2.7.1.2"><p id="dli_08_0058__en-us_topic_0093946969_ac5c004085ecf4290943013a3f765f3ec"><strong id="dli_08_0058__en-us_topic_0093946969_a7a09c434ba1047c590585416e2e45c76">Description</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="10.979999999999999%" id="mcps1.3.2.2.7.1.3"><p id="dli_08_0058__en-us_topic_0093946969_ad920ee76dd654b0485fb71f42a495a2f"><strong id="dli_08_0058__en-us_topic_0093946969_a85226004ee4842eca6118cfa727f35de">Storage Space</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="16.61%" id="mcps1.3.2.2.7.1.4"><p id="dli_08_0058__en-us_topic_0093946969_a19405423ce174aaea81e0339666564e7"><strong id="dli_08_0058__en-us_topic_0093946969_b192981077214649">Value Range</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="17.71%" id="mcps1.3.2.2.7.1.5"><p id="dli_08_0058__en-us_topic_0093946969_p26366898114457"><strong id="dli_08_0058__en-us_topic_0093946969_b842352706154527">Support by OBS Table</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="15.7%" id="mcps1.3.2.2.7.1.6"><p id="dli_08_0058__en-us_topic_0093946969_p4311259111458"><strong id="dli_08_0058__en-us_topic_0093946969_b842352706154535">Support by DLI Table</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="dli_08_0058__en-us_topic_0093946969_r876c106ab7ce4050a7da8a4c13ec9efa"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a4e1631b999f745039b68b8e5d27000ab">INT</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_af31fa73b1e96494393427d976f373538">Signed integer</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_ac9fa5458a8224b3fbcbefbe1719a9b73">4 bytes</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_af10c92092d4049868623653c47dbc3bf">–2147483648 to 2147483647</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p55344021114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p245901411458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r0ab4c604cfef45b2962fc14b482d4d7d"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_acaa294c729e240c8a9ec4b6dbe7fe46f">STRING</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a40258709ca0048638f9e84a836cc6b34">String</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a7e30ac8546624938966395f5d2f22d6a">-</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_a212b456234bf4c2a8415d301c651ab81">-</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p53680696114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p6496240811458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r2e97452e6b084a238d02ecc845be6610"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a411a248823c9475da5b5b08aa17e175e">FLOAT</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a5d59706e940543d8842b27ee26ed1156">Single-precision floating point</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a14647df40a3e43ccb2367dcd846709f8">4 bytes</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_a37708167a1cd4ce1a5069db88b73d873">-</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p53169091114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p2746371111458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r985742c3df9f4ff89d3c131dadbf3dc7"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a511f706304584c1ba5643d62d0bbd273">DOUBLE</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_ac9a7908d12ac4519a9f591211b74d13a">Double-precision floating-point</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a80dd57d4a78f41c095bf687add3f2819">8 bytes</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_a3504313d3c2440ba8fd2a4c0d90af99d">-</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p11729119114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p996814711458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r87b787a23b064f78b041c12d72f63bcb"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_ab7795dd28ae34f5bb34fc25902dfbee1">DECIMAL(precision,scale)</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a94fd57a2f4c64ba7993ce19a2d4cd2ec">Decimal number. Data type of valid fixed places and decimal places, for example, 3.5.</p>
<ul id="dli_08_0058__ul11566162162911"><li id="dli_08_0058__li75667218297"><strong id="dli_08_0058__b0360172612399">precision</strong>: indicates the maximum number of digits that can be displayed.</li><li id="dli_08_0058__li85661329293"><strong id="dli_08_0058__b14567435394">scale</strong>: indicates the number of decimal places.</li></ul>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a90cb5b5b38b14deb808bcc07c208b978">-</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__p998292142816">1&lt;=precision&lt;=38</p>
<p id="dli_08_0058__p977742214288">0&lt;=scale&lt;=38</p>
<p id="dli_08_0058__p9123143032920">If <strong id="dli_08_0058__b33315184119">precision</strong> and <strong id="dli_08_0058__b1131116324110">scale</strong> are not specified, <strong id="dli_08_0058__b3968102317412">DECIMAL (38,38)</strong> is used by default.</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p10534579114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p211357911458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r9cf2f706b83d4db48e2676285975ead5"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a1570e7c6aec547e795306d45dfd836fc">BOOLEAN</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a48e849acb3dd441a9a7aa5982071f7a3">Boolean</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a77a25fe800df4f71a1ee287d36425651">1 byte</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_abaae5ac5d84e42929d73d415347b9a8d">TRUE/FALSE</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p47994600114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p3698222411458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r20ff507900e74e73b25e3de6f3f158fc"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a9c3459894e5a4c9992797103c93b456c">SMALLINT/SHORT</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_ae02ccf68bb7b4f91a59a507781f7d75a">Signed integer</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a63ef416cb0724cb4b8501dc198ab6054">2 bytes</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_a419724ff1c14473186fe54777e265a0e">-32768~32767</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p62357414114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p4277015311458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r6fa34e6971044b44bb1e141248c35cac"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a8d078ad097dc47f49fa062af60f93a4e">TINYINT</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a31969eee939a4c19a93f09ad5c4e50fe">Signed integer</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a4fcfe9c475ac4ec080a6728fb3538006">1 byte</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_a48d38047b3514982905c62a979281672">-128~127</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p17785748114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p4183036711458">No</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r17f1bc1bd0f24b73bfb080bff073292f"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a711d4ec9a2d2490e9bb36130f74b578e">BIGINT/LONG</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a50e5af56fe96434da001b045f2fdfbed">Signed integer</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a8ca8e565fc794d1787e6af97d735a2d1">8 bytes</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_a6c0fb3c6853e4cbc8bb91ae44e87a2e6">–9223372036854775808 to 9223372036854775807</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p31359450114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p3281653711458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r91ddb57d4f6b49188e8da03502c5146f"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a62e459c38cfb47d09c33416f792819a5">TIMESTAMP</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a4a8dcf97005c40f88427d6673fa6cdd1">Timestamp in raw data format, indicating the date and time Example: 1621434131222</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_ab2794250d717440e9731694b756784f1">-</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_af0abb3ad3d1d4904ba3a7368d50d7646">-</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p57087521114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p4089382311458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_row46625912111351"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_p18602527111351">CHAR</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_p30409710111351">Fixed-length string</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_p47267470111351">-</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_p3459879111351">-</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p16657872114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p314059411458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_rb9fa3fa3a0c74c2883dd952a47f4fd12"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_ac51d06b3c03247d0a491e1570c59c893">VARCHAR</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a99ad87e5b639412eb6d0a2b9137bd8f3">Variable-length string</p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a19dd2cfccdc448d2860b0d4e2e14d531">-</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_a0d90a54d10eb4a6da7f1bf765c403706">-</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p7110409114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p5306158211458">Yes</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r4b7f638356434109a2d52408e1e09971"><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.2.2.7.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a7b4a0501d7aa4b24b74e1517ccdd3238">DATE</p>
</td>
<td class="cellrowborder" valign="top" width="24%" headers="mcps1.3.2.2.7.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_ac71b075dfa6b49f7b0051573ea4be9b6">Date type in the format of <strong id="dli_08_0058__b122514235428"><em id="dli_08_0058__i187701825164213">yyyy</em>-<em id="dli_08_0058__i133529144210">mm</em>-<em id="dli_08_0058__i4567433184215">dd</em></strong>, for example, <strong id="dli_08_0058__b1991704018429">2014-05-29</strong></p>
</td>
<td class="cellrowborder" valign="top" width="10.979999999999999%" headers="mcps1.3.2.2.7.1.3 "><p id="dli_08_0058__en-us_topic_0093946969_a16324e41f85e46d1a751a754a791c2b4">-</p>
</td>
<td class="cellrowborder" valign="top" width="16.61%" headers="mcps1.3.2.2.7.1.4 "><p id="dli_08_0058__en-us_topic_0093946969_a88dacb68ddea47a5b5ee3d3e074c9d42"><strong id="dli_08_0058__en-us_topic_0093946969_b842352706141039">DATE</strong> does not contain time information. Its value ranges from <strong id="dli_08_0058__b163273580427">0000-01-01</strong> to <strong id="dli_08_0058__b1919192144310">9999-12-31</strong>.</p>
</td>
<td class="cellrowborder" valign="top" width="17.71%" headers="mcps1.3.2.2.7.1.5 "><p id="dli_08_0058__en-us_topic_0093946969_p39072226114457">Yes</p>
</td>
<td class="cellrowborder" valign="top" width="15.7%" headers="mcps1.3.2.2.7.1.6 "><p id="dli_08_0058__en-us_topic_0093946969_p302091911458">Yes</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="note" id="dli_08_0058__en-us_topic_0093946969_note13205336143341"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="dli_08_0058__en-us_topic_0093946969_ul5916610218393"><li id="dli_08_0058__en-us_topic_0093946969_li5497973418393">VARCHAR and CHAR data is stored in STRING type on DLI. Therefore, the string that exceeds the specified length will not be truncated.</li><li id="dli_08_0058__en-us_topic_0093946969_li1791975818396">FLOAT data is stored as DOUBLE data on DLI.</li></ul>
</div></div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_s3fd96a757f754df4af005180d997834c"><h4 class="sectiontitle">INT</h4><p id="dli_08_0058__en-us_topic_0093946969_a3172e5e52d124b7190abf797dd78ff08">Signed integer with a storage space of 4 bytes. Its value ranges from –2147483648 to 2147483647. If this field is NULL, value 0 is used by default.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_s2fed4222fc754407bdcecd755afe4530"><h4 class="sectiontitle">STRING</h4><p id="dli_08_0058__en-us_topic_0093946969_ab1a62456d0ec4ce1a94944f78c004037">String.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_s1255dd68d61440f7bb4624c9a0afb3f5"><h4 class="sectiontitle">FLOAT</h4><p id="dli_08_0058__en-us_topic_0093946969_ac797ebfa89d3495983910b36022f3358">Single-precision floating point with a storage space of 4 bytes. If this field is NULL, value 0 is used by default.</p>
<p id="dli_08_0058__en-us_topic_0093946969_a45c4eb6818604a279f96c1f13d405c53">Due to the limitation of storage methods of floating point data, do not use the formula a==b to check whether two floating point values are the same. You are advised to use the formula: absolute value of (a-b) &lt;= EPSILON. EPSILON indicates the allowed error range which is usually 1.19209290E-07F. If the formula is satisfied, the compared two floating point values are considered the same.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_se27a426cfeb64228a8c72bdd71a1719c"><h4 class="sectiontitle">DOUBLE</h4><p id="dli_08_0058__en-us_topic_0093946969_a7539f726d80948b4a2f8e93545114c4e">Double-precision floating point with a storage space of 8 bytes. If this field is NULL, value 0 is used by default.</p>
<p id="dli_08_0058__en-us_topic_0093946969_ad000842a87844b079bbf4378cba63193">Due to the limitation of storage methods of floating point data, do not use the formula a==b to check whether two floating point values are the same. You are advised to use the formula: absolute value of (a-b) &lt;= EPSILON. EPSILON indicates the allowed error range which is usually 2.2204460492503131E-16. If the formula is satisfied, the compared two floating point values are considered the same.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_sba1492cd10004481816e1d69039a6490"><h4 class="sectiontitle">DECIMAL</h4><p id="dli_08_0058__en-us_topic_0093946969_a3caa9a7d87cc47aca32cdcb49b2e920f">Decimal(p,s) indicates that the total digit length is <strong id="dli_08_0058__en-us_topic_0093946969_b842352706161413">p</strong>, including <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616145">p – s</strong> integer digits and <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616149">s</strong> fractional digits. <strong id="dli_08_0058__en-us_topic_0093946969_b842352706192610">p</strong> indicates the maximum number of decimal digits that can be stored, including the digits to both the left and right of the decimal point. The value of <strong id="dli_08_0058__en-us_topic_0093946969_b842352706192618">p</strong> ranges from 1 to 38. <strong id="dli_08_0058__en-us_topic_0093946969_b842352706192630">s</strong> indicates the maximum number of decimal digits that can be stored to the right of the decimal point. The fractional digits must be values ranging from 0 to <strong id="dli_08_0058__en-us_topic_0093946969_b84235270619299">p</strong>. The fractional digits can be specified only after significant digits are specified. Therefore, the following inequality is concluded: 0 ≤ <strong id="dli_08_0058__en-us_topic_0093946969_b84235270619308">s</strong> ≤ <strong id="dli_08_0058__en-us_topic_0093946969_b842352706193011">p</strong>. For example, decimal (10,6) indicates that the value contains 10 digits, in which there are four integer digits and six fractional digits.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_s623eeab913b24d019d361471c3f7e73d"><h4 class="sectiontitle">BOOLEAN</h4><p id="dli_08_0058__en-us_topic_0093946969_a3a99d3b8403a4ef883fe34cb52f74bc2">Boolean, which can be <strong id="dli_08_0058__en-us_topic_0093946969_b842352706161637">TRUE</strong> or <strong id="dli_08_0058__en-us_topic_0093946969_b842352706161617">FALSE</strong>.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_sce440519abdf41a5aa89fc7343eeac7c"><h4 class="sectiontitle">SMALLINT/SHORT</h4><p id="dli_08_0058__en-us_topic_0093946969_adc80c2d2663f4994ae4830708745e02e">Signed integer with a storage space of 2 bytes. Its value ranges from –32768 to 32767. If this field is NULL, value 0 is used by default.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_s49eb4986028e4dc38757713cfeb30404"><h4 class="sectiontitle">TINYINT</h4><p id="dli_08_0058__en-us_topic_0093946969_aa048924b5bad405ca299a7b26075a7f1">Signed integer with a storage space of 1 byte. Its value ranges from –128 to 127. If this field is NULL, value 0 is used by default.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_s01990391fac644a19a9e07556a0eeca5"><h4 class="sectiontitle">BIGINT/LONG</h4><p id="dli_08_0058__en-us_topic_0093946969_a0bdbab4085c5404ab65b0fd92e678ff3">Signed integer with a storage space of 8 bytes. Its value ranges from –9223372036854775808 to 9223372036854775807. It does not support scientific notation. If this field is NULL, value 0 is used by default.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_sd448b61418194d3095d5acdb8efb2519"><h4 class="sectiontitle">TIMESTAMP</h4><p id="dli_08_0058__en-us_topic_0093946969_aed42b60bcded4bd2a8ca6cc3762ce059">Legacy UNIX TIMESTAMP is supported, providing the precision up to the microsecond level. <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616279">TIMESTAMP</strong> is defined by the difference between the specified time and UNIX epoch (UNIX epoch time: 1970-01-01 00:00:00) in seconds. The data type <strong id="dli_08_0058__b191997451272">STRING</strong> can be implicitly converted to <strong id="dli_08_0058__b1410311479276">TIMESTAMP</strong>, but it must be in the <strong id="dli_08_0058__b938112192814">yyyy-MM-dd HH:mm:SS[.ffffff]</strong> format. The precision after the decimal point is optional.)</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_section5343054214381"><h4 class="sectiontitle">CHAR</h4><p id="dli_08_0058__en-us_topic_0093946969_p3965738814384">String with a fixed length. In DLI, the STRING type is used.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_s860ebe75a3f0428980b452084ced6412"><h4 class="sectiontitle">VARCHAR</h4><p id="dli_08_0058__en-us_topic_0093946969_a501f438ac5064d498e0a4816ce6ef1f2"><strong id="dli_08_0058__en-us_topic_0093946969_b842352706162840">VARCHAR</strong> is declared with a length that indicates the maximum number of characters in a string. During conversion from <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616294">STRING</strong> to <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616298">VARCHAR</strong>, if the number of characters in <strong id="dli_08_0058__en-us_topic_0093946969_b842352706162918">STRING</strong> exceeds the specified length, the excess characters of <strong id="dli_08_0058__en-us_topic_0093946969_b842352706162938">STRING</strong> are automatically trimmed. Similar to <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616306">STRING</strong>, the spaces at the end of <strong id="dli_08_0058__en-us_topic_0093946969_b842352706163010">VARCHAR</strong> are meaningful and affect the comparison result. In DLI, the STRING type is used.</p>
</div>
<div class="section" id="dli_08_0058__en-us_topic_0093946969_s59c7d27331be44dbb72a4ae0bbe64584"><h4 class="sectiontitle">DATE</h4><p id="dli_08_0058__en-us_topic_0093946969_a93a18c2976444571bfcd4a253be01013"><strong id="dli_08_0058__en-us_topic_0093946969_b842352706163042">DATE</strong> supports only explicit conversion (cast) with <strong id="dli_08_0058__en-us_topic_0093946969_b842352706163047">DATE</strong>, <strong id="dli_08_0058__en-us_topic_0093946969_b842352706163051">TIMESTAMP</strong>, and <strong id="dli_08_0058__en-us_topic_0093946969_b842352706163056">STRING</strong>. For details, see <a href="#dli_08_0058__en-us_topic_0093946969_t15e381680c464657923c440b88e59cb9">Table 2</a>.</p>
<div class="tablenoborder"><a name="dli_08_0058__en-us_topic_0093946969_t15e381680c464657923c440b88e59cb9"></a><a name="en-us_topic_0093946969_t15e381680c464657923c440b88e59cb9"></a><table cellpadding="4" cellspacing="0" summary="" id="dli_08_0058__en-us_topic_0093946969_t15e381680c464657923c440b88e59cb9" frame="border" border="1" rules="all"><caption><b>Table 2 </b>cast function conversion</caption><thead align="left"><tr id="dli_08_0058__en-us_topic_0093946969_ra6447f9e0bcf4d9ca32ec18e5d326af2"><th align="left" class="cellrowborder" valign="top" width="30.45%" id="mcps1.3.16.3.2.3.1.1"><p id="dli_08_0058__en-us_topic_0093946969_a76696b039154475480caaa4a849d53c8"><strong id="dli_08_0058__en-us_topic_0093946969_b842352706163121">Explicit Conversion</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="69.55%" id="mcps1.3.16.3.2.3.1.2"><p id="dli_08_0058__en-us_topic_0093946969_a9fc4669972ab464db6a8d5cdb6efe64c"><strong id="dli_08_0058__en-us_topic_0093946969_b842352706163127">Conversion Result</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="dli_08_0058__en-us_topic_0093946969_rb665b6dfab864f188011489a4cc5bdc3"><td class="cellrowborder" valign="top" width="30.45%" headers="mcps1.3.16.3.2.3.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a6f225e731ca64bfd9c07058b683c8525">cast(date as date)</p>
</td>
<td class="cellrowborder" valign="top" width="69.55%" headers="mcps1.3.16.3.2.3.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_aa14a7b781c7740229ba131e77279c468">Same as value of <strong id="dli_08_0058__en-us_topic_0093946969_b842352706163141">DATE</strong>.</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r35a6b55add55431e96ef4f7b5de6f0f8"><td class="cellrowborder" valign="top" width="30.45%" headers="mcps1.3.16.3.2.3.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a1145e396263649f1a921a246ff3f6268">cast(timestamp as date)</p>
</td>
<td class="cellrowborder" valign="top" width="69.55%" headers="mcps1.3.16.3.2.3.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_aeeaa0fd4eb1944e88c01baa574e89db1">The date (yyyy-mm-dd) is obtained from <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616323">TIMESTAMP</strong> based on the local time zone and returned as the value of <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616326">DATE</strong>.</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_ra9adac60e5d24dc9a01fe0ccea76838b"><td class="cellrowborder" valign="top" width="30.45%" headers="mcps1.3.16.3.2.3.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a4797d9057bcb4fdea32e413e9053b507">cast(string as date)</p>
</td>
<td class="cellrowborder" valign="top" width="69.55%" headers="mcps1.3.16.3.2.3.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a9759af40fa324b01a43700eb3dc13eb1">If the STRING is in the <span class="parmvalue" id="dli_08_0058__en-us_topic_0093946969_parmvalue1917679371163227"><b>yyyy-MM-dd</b></span> format, the corresponding date (yyyy-mm-dd) is returned as the value of <strong id="dli_08_0058__en-us_topic_0093946969_b842352706163238">DATE</strong>. If the STRING is not in the <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616331">yyyy-MM-dd</strong> format, <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616338">NULL</strong> is returned.</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_r93c5c143a3d54d38816828ac0b6b5e22"><td class="cellrowborder" valign="top" width="30.45%" headers="mcps1.3.16.3.2.3.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_a8a96eb274a554e40931c1067813fc55c">cast(date as timestamp)</p>
</td>
<td class="cellrowborder" valign="top" width="69.55%" headers="mcps1.3.16.3.2.3.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_ae4e3da1847c046b89f22122f0e727041">Timestamp that maps to the zero hour of the date (yyyy-mm-dd) specified by <strong id="dli_08_0058__en-us_topic_0093946969_b842352706163359">DATE</strong> is generated based on the local time zone and returned as the value of <strong id="dli_08_0058__en-us_topic_0093946969_b84235270616349">DATE</strong>.</p>
</td>
</tr>
<tr id="dli_08_0058__en-us_topic_0093946969_rb73c3cdceadb408d9faac0b1adc2fe0c"><td class="cellrowborder" valign="top" width="30.45%" headers="mcps1.3.16.3.2.3.1.1 "><p id="dli_08_0058__en-us_topic_0093946969_aa2db7e0fbcbc4b67a1ac3ceffd89e151">cast(date as string)</p>
</td>
<td class="cellrowborder" valign="top" width="69.55%" headers="mcps1.3.16.3.2.3.1.2 "><p id="dli_08_0058__en-us_topic_0093946969_a67f673813a724f748d6755b94c6defa7">A STRING in the <span class="parmvalue" id="dli_08_0058__en-us_topic_0093946969_parmvalue607614349163430"><b>yyyy-MM-dd</b></span> format is generated based on the date (yyyy-mm-dd) specified by <strong id="dli_08_0058__en-us_topic_0093946969_b842352706163440">DATE</strong> and returned as the value of <strong id="dli_08_0058__en-us_topic_0093946969_b842352706163443">DATE</strong>.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<div>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dli_08_0056.html">Data Types</a></div>
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