73 lines
4.5 KiB
HTML
73 lines
4.5 KiB
HTML
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<meta name="DC.Title" content="Numeric host variables in C and C++ applications that use SQL" />
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<meta name="abstract" content="The topic contains a figure showing the syntax for valid numeric host variable declarations." />
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<meta name="description" content="The topic contains a figure showing the syntax for valid numeric host variable declarations." />
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<meta name="DC.subject" content="numeric host variable, C, C++, host variable, numeric, C program, C++ program" />
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<title>Numeric host variables in C and C++ applications that use SQL</title>
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<body id="rzajpcnumvar"><a name="rzajpcnumvar"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Numeric host variables in C and C++ applications that use SQL</h1>
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<div><p>The topic contains a figure showing the syntax for valid numeric
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host variable declarations.</p>
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<div class="section"><h4 class="sectiontitle">Numeric</h4><pre><span><img src="./c.gif" border="0" alt="Read syntax diagram" longdesc="rzajpcnumvarsyn1.htm" /></span><a href="#d0e42"><img src="./c.gif" border="0" alt="Skip visual syntax diagram" /></a>
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>>-+--------+--+----------+------------------------------------->
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+-auto---+ +-const----+
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+-extern-+ '-volatile-'
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'-static-'
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>--+-float----------------------------------+------------------->
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+-double---------------------------------+
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+-decimal (--<i>precision</i>--+----------+--)--+
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| '-,--<i>scale</i>-' |
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| .-int-. |
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'-+-+--------+--+-long long-+--+-----+-+-'
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| '-signed-' +-long------+ |
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| '-short-----' |
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+-sqlint32---------------------------+
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'-sqlint64---------------------------'
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.-,----------------------------------.
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V |
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>----<i>variable-name</i>--+-----------------+-+-- ; -----------------><
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'- = --<i>expression</i>-'
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</pre><a name="d0e42"></a></div>
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<div class="section"> <div class="note"><span class="notetitle">Notes:</span> <ol><li>Precision and scale must be integer constants. Precision may be in the
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range from 1 to 63. Scale may be in the range from 0 to the precision.</li>
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<li>If using the decimal data type, the header file decimal.h must be included.</li>
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<li>If using sqlint32 or sqlint64, the header file sqlsystm.h must be included.</li>
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</ol>
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</div>
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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="rzajpdeclaringhostc.htm" title="The C and C++ precompilers recognize only a subset of valid C and C++ declarations as valid host variable declarations.">Declare host variables in C and C++ applications that use SQL</a></div>
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</div>
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</div>
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</body>
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</html>
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