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doc-exports/docs/dws/tool/dws_16_0045.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_0000001860318637"></a><a name="EN-US_TOPIC_0000001860318637"></a>
<h1 class="topictitle1">String Functions</h1>
<div id="body8662426"><div class="section" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_section98336268713"><h4 class="sectiontitle">CHAR Function</h4><p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p137499310911"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b420913542427">Input: CHAR</strong></p>
</div>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen13276125521519"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="nb">CHAR</span><span class="p">(</span><span class="w"> </span><span class="n">expression1</span><span class="w"> </span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p1227675531512"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b696085619427">Output</strong>:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen027613559156"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">LENGTH</span><span class="p">(</span><span class="w"> </span><span class="n">expression1</span><span class="w"> </span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
<div class="section" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_section18359116786"><h4 class="sectiontitle">CHARACTERS</h4><p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p1974916718913"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b17246200124310">Input: CHARACTERS</strong></p>
</div>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen3276755131513"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="n">CHARACTERS</span><span class="p">(</span><span class="w"> </span><span class="n">expression1</span><span class="w"> </span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p7276125581511"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b1438777133512">Output</strong>:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen1276125551510"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">LENGTH</span><span class="p">(</span><span class="w"> </span><span class="n">expression1</span><span class="w"> </span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
<div class="section" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_section5834203015820"><h4 class="sectiontitle">INDEX</h4><p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p7276195516151"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b198781310174313">Input: INDEX</strong></p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen16276055151520"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="k">INDEX</span><span class="p">(</span><span class="n">expr1</span><span class="o">/</span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="k">substring</span><span class="p">)</span>
<span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">tab1</span><span class="w"> </span>
<span class="k">WHERE</span><span class="w"> </span><span class="p">...</span><span class="w"> </span><span class="p">;</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p102762559157"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b1938817743515">Output</strong>:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen9276105551510"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span></pre></div></td><td class="code"><div><pre><span></span><span class="w"> </span><span class="k">SELECT</span><span class="w"> </span><span class="n">INSTR</span><span class="p">(</span><span class="n">expr1</span><span class="o">/</span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="k">substring</span><span class="p">)</span>
<span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">tab1</span><span class="w"> </span>
<span class="k">WHERE</span><span class="w"> </span><span class="p">...</span><span class="w"> </span><span class="p">;</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_section156724412105"><h4 class="sectiontitle">STRREPLACE</h4><div class="p" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p1687172115324"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b677619172434">Input: STRREPLACE</strong><div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen652514521696"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="n">STRREPLACE</span><span class="p">(</span><span class="n">c2</span><span class="p">,</span><span class="w"> </span><span class="s1">'.'</span><span class="p">,</span><span class="w"> </span><span class="s1">''</span><span class="p">)</span>
<span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">tab1</span>
<span class="w"> </span><span class="k">WHERE</span><span class="w"> </span><span class="p">...;</span>
</pre></div></td></tr></table></div>
</div>
</div>
<p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p182799559151"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b9389972358">Output</strong>:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen122798558151"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="k">REPLACE</span><span class="p">(</span><span class="n">c2</span><span class="p">,</span><span class="w"> </span><span class="s1">'.'</span><span class="p">,</span><span class="w"> </span><span class="s1">''</span><span class="p">)</span>
<span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">tab1</span>
<span class="w"> </span><span class="k">WHERE</span><span class="w"> </span><span class="p">...;</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_section11574199161010"><h4 class="sectiontitle">OREPLACE</h4><div class="p" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p2468124917324"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b1724382518432">Input: OREPLACE</strong><div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen17278115551518"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="n">OREPLACE</span><span class="w"> </span><span class="p">(</span><span class="n">c2</span><span class="p">,</span><span class="w"> </span><span class="s1">'.'</span><span class="p">,</span><span class="w"> </span><span class="s1">''</span><span class="p">)</span>
<span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">tab1</span>
<span class="k">WHERE</span><span class="w"> </span><span class="p">...</span><span class="w"> </span><span class="p">;</span>
</pre></div></td></tr></table></div>
</div>
</div>
<p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p9278125514153"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b13894703510">Output</strong>:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen6279195519154"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span></pre></div></td><td class="code"><div><pre><span></span><span class="w"> </span><span class="k">SELECT</span><span class="w"> </span><span class="k">REPLACE</span><span class="p">(</span><span class="n">c2</span><span class="p">,</span><span class="w"> </span><span class="s1">'.'</span><span class="p">,</span><span class="w"> </span><span class="s1">''</span><span class="p">)</span><span class="w"> </span>
<span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">tab1</span>
<span class="k">WHERE</span><span class="w"> </span><span class="p">...</span><span class="w"> </span><span class="p">;</span>
</pre></div></td></tr></table></div>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_section14320913174412"><h4 class="sectiontitle">STRTOK</h4><p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p157894175610"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b14765135919212">Input</strong></p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen1520471419562"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">LENGTH</span><span class="p">(</span><span class="n">STRTOK</span><span class="p">(</span><span class="n">STRTOK</span><span class="p">(</span><span class="n">JOB_NAME_TADD</span><span class="p">,</span><span class="s1">'-'</span><span class="p">,</span><span class="mi">4</span><span class="p">),</span><span class="s1">'_'</span><span class="p">,</span><span class="mi">2</span><span class="p">))</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_p4593153125613"><strong id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_b639011715351">Output</strong>:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001860318637__en-us_topic_0000001384550456_screen5100194795610"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">LENGTH</span><span class="p">(</span><span class="n">split_part</span><span class="p">(</span><span class="n">split_part</span><span class="p">(</span><span class="n">JOB_NAME_TADD</span><span class="p">,</span><span class="s1">'-'</span><span class="p">,</span><span class="mi">4</span><span class="p">),</span><span class="s1">'_'</span><span class="p">,</span><span class="mi">2</span><span class="p">))</span>
</pre></div></td></tr></table></div>
</div>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_16_0041.html">Functions and Operators</a></div>
</div>
</div>
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