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<h1 class="topictitle1">LOB host variables in ILE RPG applications that use SQL</h1>
<div><p>The following are examples of LOB host variables in ILE RPG.</p>
<div class="section"><h4 class="sectiontitle"><em>CLOB example</em></h4><p>The following declaration:</p>
<pre>D MYCLOB S SQLTYPE(CLOB:1000)</pre>
<p>results in the generation of the following structure:</p>
<pre>D MYCLOB DS
D MYCLOB_LEN 10U
D MYCLOB_DATA 1000A </pre>
</div>
<div class="section"><h4 class="sectiontitle"><em>DBCLOB example</em></h4><p>The following declaration: </p>
<pre>D MYDBCLOB S SQLTYPE(DBCLOB:400)</pre>
<p>results in the generation of the following structure:</p>
<pre>D MYDBCLOB DS
D MYDBCLOB_LEN 10U
D MYDBCLOB_DATA 400G </pre>
</div>
<div class="section"><h4 class="sectiontitle"><em>BLOB example</em></h4><p>The following declaration:</p>
<pre>D MYBLOB S SQLTYPE(BLOB:500)</pre>
<p>results in the generation of the following structure:</p>
<pre>D MYBLOB DS
D MYBLOB_LEN 10U
D MYBLOB_DATA 500A </pre>
</div>
<div class="section"> <div class="note"><span class="notetitle">Notes:</span> <ol><li><img src="./delta.gif" alt="Start of change" />For BLOB and CLOB, 1 ≤ lob-length ≤ 65 531<img src="./deltaend.gif" alt="End of change" /></li>
<li>For DBCLOB, 1≤ lob-length ≤ 16 383</li>
<li>LOB host variables are allowed to be declared in host structures.</li>
<li>LOB host variables are not allowed in host structure arrays. LOB locators
should be used instead.</li>
<li>LOB host variables declared in structure arrays cannot be used as standalone
host variables.</li>
<li>SQLTYPE, BLOB, CLOB, DBCLOB can be in mixed case.</li>
<li>SQLTYPE must be between positions 44 to 80.</li>
<li>When a LOB is declared as a stand-alone host variable, position 24 must
contain the character 'S' and position 25 must be blank.</li>
<li>The stand-alone field indicator S in position 24 should be omitted when
a LOB is declared in a host structure.</li>
<li>LOB host variables cannot be initialized.</li>
</ol>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzajplobvar.htm" title="ILE RPG does not have variables that correspond to the SQL data types for LOBs (large objects).">Declare LOB host variables in ILE RPG applications that use SQL</a></div>
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