65 lines
5.0 KiB
HTML
65 lines
5.0 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Title" content="Declare host variables in C and C++ applications that use SQL" />
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<meta name="abstract" content="The C and C++ precompilers recognize only a subset of valid C and C++ declarations as valid host variable declarations." />
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<meta name="description" content="The C and C++ precompilers recognize only a subset of valid C and C++ declarations as valid host variable declarations." />
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<meta name="DC.subject" content="host variable, variable, C program, declaring, C++ program" />
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<meta name="keywords" content="host variable, variable, C program, declaring, C++ program" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Declare host variables in C and C++ applications that
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use SQL</title>
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</head>
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<body id="rzajpdeclaringhostc"><a name="rzajpdeclaringhostc"><!-- --></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">Declare host variables in C and C++ applications that
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use SQL</h1>
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<div><p>The C and C++ precompilers recognize only a subset of valid C and
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C++ declarations as valid host variable declarations.</p>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzajpcnumvar.htm">Numeric host variables in C and C++ applications that use SQL</a></strong><br />
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The topic contains a figure showing the syntax for valid numeric host variable declarations.</li>
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<li class="ulchildlink"><strong><a href="rzajpccharhost.htm">Character host variables in C and C++ applications that use SQL</a></strong><br />
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There are three valid forms for character host variables.</li>
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<li class="ulchildlink"><strong><a href="rzajpcgraphvar.htm">Graphic host variables in C and C++ applications that use SQL</a></strong><br />
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There are three valid forms for graphic host variables.</li>
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<li class="ulchildlink"><strong><a href="rzajpcisbinary.htm">Binary host variables in C and C++ applications that use SQL</a></strong><br />
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C and C++ do not have variables that correspond to the SQL binary data types. To create host variables that can be used with these data types, use the SQL TYPE IS clause. The SQL precompiler replaces this declaration with a C language structure in the output source member.</li>
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<li class="ulchildlink"><strong><a href="rzajpclobvar.htm">LOB host variables in C and C++ applications that use SQL</a></strong><br />
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C and C++ do not have variables that correspond to the SQL data types for LOBs (large objects). To create host variables that can be used with these data types, use the SQL TYPE IS clause. The SQL precompiler replaces this declaration with a C language structure in the output source member.</li>
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<li class="ulchildlink"><strong><a href="rzajpcrowid.htm">ROWID host variables in C and C++ applications that use SQL</a></strong><br />
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C and C++ do not have a variable that corresponds to the SQL data type ROWID. To create host variables that can be used with this data type, use the SQL TYPE IS clause. The SQL precompiler replaces this declaration with a C language structure in the output source member.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzajphostsqlc.htm" title="All host variables used in SQL statements must be explicitly declared prior to their first use.">Use 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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