forked from docs/doc-exports
Su, Xiaomeng
76a5b1ee83
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>
57 lines
6.1 KiB
HTML
57 lines
6.1 KiB
HTML
<a name="dli_spark_hex"></a><a name="dli_spark_hex"></a>
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<h1 class="topictitle1">hex</h1>
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<div id="body8662426"><p id="dli_spark_hex__en-us_topic_0000001696401513_p18471163815215">This function is used to convert an integer or character into its hexadecimal representation.</p>
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<div class="section" id="dli_spark_hex__en-us_topic_0000001696401513_section45291954203217"><h4 class="sectiontitle">Syntax</h4><pre class="screen" id="dli_spark_hex__en-us_topic_0000001696401513_screen19928459112517">hex(BIGINT a)</pre>
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</div>
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<div class="section" id="dli_spark_hex__en-us_topic_0000001696401513_section992014913317"><h4 class="sectiontitle">Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="dli_spark_hex__en-us_topic_0000001696401513_table1829154762513" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameter</caption><thead align="left"><tr id="dli_spark_hex__en-us_topic_0000001696401513_row8830104792517"><th align="left" class="cellrowborder" valign="top" width="19.220000000000002%" id="mcps1.3.3.2.2.5.1.1"><p id="dli_spark_hex__en-us_topic_0000001696401513_p983074711252">Parameter</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="13.44%" id="mcps1.3.3.2.2.5.1.2"><p id="dli_spark_hex__en-us_topic_0000001696401513_p6830124732517">Mandatory</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="15.57%" id="mcps1.3.3.2.2.5.1.3"><p id="dli_spark_hex__en-us_topic_0000001696401513_p13318164512614">Type</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="51.77%" id="mcps1.3.3.2.2.5.1.4"><p id="dli_spark_hex__en-us_topic_0000001696401513_p08301547132513">Description</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="dli_spark_hex__en-us_topic_0000001696401513_row15830184792511"><td class="cellrowborder" valign="top" width="19.220000000000002%" headers="mcps1.3.3.2.2.5.1.1 "><p id="dli_spark_hex__en-us_topic_0000001696401513_p683034714250">a</p>
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</td>
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<td class="cellrowborder" valign="top" width="13.44%" headers="mcps1.3.3.2.2.5.1.2 "><p id="dli_spark_hex__en-us_topic_0000001696401513_p12830184752518">Yes</p>
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</td>
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<td class="cellrowborder" valign="top" width="15.57%" headers="mcps1.3.3.2.2.5.1.3 "><p id="dli_spark_hex__en-us_topic_0000001696401513_p0318545102615">DOUBLE, BIGINT, DECIMAL, or STRING</p>
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</td>
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<td class="cellrowborder" valign="top" width="51.77%" headers="mcps1.3.3.2.2.5.1.4 "><p id="dli_spark_hex__en-us_topic_0000001696401513_p18653154615263">The value can be a float, integer, or string.</p>
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<p id="dli_spark_hex__en-us_topic_0000001696401513_p1584685773916">If the value is not of the BIGINT type, the system will implicitly convert it to the BIGINT type for calculation.</p>
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<p id="dli_spark_hex__en-us_topic_0000001696401513_p19846105733911">The string is converted to its corresponding ASCII code.</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="dli_spark_hex__en-us_topic_0000001696401513_section210162513312"><h4 class="sectiontitle">Return Values</h4><p id="dli_spark_hex__en-us_topic_0000001696401513_p184124317231">The return value is of the STRING type.</p>
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<div class="note" id="dli_spark_hex__en-us_topic_0000001696401513_note61422099395"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="dli_spark_hex__en-us_topic_0000001696401513_ul1315431154110"><li id="dli_spark_hex__en-us_topic_0000001696401513_li151291813184118">If the value of <strong id="dli_spark_hex__en-us_topic_0000001696401513_b1863832995012">a</strong> is <strong id="dli_spark_hex__en-us_topic_0000001696401513_b116387296507">0</strong>, <strong id="dli_spark_hex__en-us_topic_0000001696401513_b14639192915501">0</strong> is returned.</li><li id="dli_spark_hex__en-us_topic_0000001696401513_li191541811114117">If the value of <strong id="dli_spark_hex__en-us_topic_0000001696401513_b190954269855756">a</strong> is <strong id="dli_spark_hex__en-us_topic_0000001696401513_b115106489955756">NULL</strong>, <strong id="dli_spark_hex__en-us_topic_0000001696401513_b12318749255756">NULL</strong> is returned.</li></ul>
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</div></div>
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</div>
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<div class="section" id="dli_spark_hex__en-us_topic_0000001696401513_section13277192233920"><h4 class="sectiontitle">Example Code</h4><p id="dli_spark_hex__en-us_topic_0000001696401513_p1476124116537">The value <strong id="dli_spark_hex__en-us_topic_0000001696401513_b80189111254613">0</strong> is returned.</p>
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<pre class="screen" id="dli_spark_hex__en-us_topic_0000001696401513_screen4721321135418">select hex(0);</pre>
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<p id="dli_spark_hex__en-us_topic_0000001696401513_p143418436533">The value <strong id="dli_spark_hex__en-us_topic_0000001696401513_b33904975018">61</strong> is returned.</p>
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<pre class="screen" id="dli_spark_hex__en-us_topic_0000001696401513_screen19779228155414">select hex('a');</pre>
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<p id="dli_spark_hex__en-us_topic_0000001696401513_p15520144465319">The value <strong id="dli_spark_hex__en-us_topic_0000001696401513_b78879365345050">10</strong> is returned.</p>
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<pre class="screen" id="dli_spark_hex__en-us_topic_0000001696401513_screen117773885411">select hex(16);</pre>
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<p id="dli_spark_hex__en-us_topic_0000001696401513_p9617351115315">The value <strong id="dli_spark_hex__en-us_topic_0000001696401513_b172293355115">31</strong> is returned.</p>
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<pre class="screen" id="dli_spark_hex__en-us_topic_0000001696401513_screen146071046125412">select hex('1');</pre>
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<p id="dli_spark_hex__en-us_topic_0000001696401513_p16112253145311">The value <strong id="dli_spark_hex__en-us_topic_0000001696401513_b12555161410512">3136</strong> is returned.</p>
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<pre class="screen" id="dli_spark_hex__en-us_topic_0000001696401513_screen17429611557">select hex('16');</pre>
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<p id="dli_spark_hex__en-us_topic_0000001696401513_p11803165455310">The value <strong id="dli_spark_hex__en-us_topic_0000001696401513_b13413132219515">NULL</strong> is returned.</p>
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<pre class="screen" id="dli_spark_hex__en-us_topic_0000001696401513_screen4460112335518">select hex(null);</pre>
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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="dli_08_0473.html">Mathematical Functions</a></div>
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</div>
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</div>
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