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<h1 class="topictitle1">Use host variables in COBOL applications that use SQL</h1>
<div><p>All host variables used in SQL statements must be explicitly declared
prior to their first use.</p>
<div class="section"><p>The COBOL statements that are used to define the host variables
should be preceded by a BEGIN DECLARE SECTION statement and followed by an
END DECLARE SECTION statement. If a BEGIN DECLARE SECTION and END DECLARE
SECTION are specified, all host variable declarations used in SQL statements
must be between the BEGIN DECLARE SECTION and the END DECLARE SECTION statements.</p>
</div>
<div class="section"><p>All host variables within an SQL statement must be preceded by
a colon (:).</p>
</div>
<div class="section"><p>Host variables cannot be records or elements.</p>
</div>
<div class="section"><p>To accommodate using dashes within a COBOL host variable name,
blanks must precede and follow a minus sign.</p>
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<ul class="ullinks">
<li class="ulchildlink"><strong><a href="rzajpdeclaringhostcobol.htm">Declare host variables in COBOL applications that use SQL</a></strong><br />
The COBOL precompiler only recognizes a subset of valid COBOL declarations as valid host variable declarations.</li>
</ul>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzajpcob.htm" title="This topic describes the unique application and coding requirements for embedding SQL statements in a COBOL program. Requirements for host structures and host variables are defined.">Code SQL statements in COBOL applications</a></div>
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