57 lines
3.8 KiB
HTML
57 lines
3.8 KiB
HTML
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<meta name="DC.Title" content="Data conversion in DB2 UDB CLI functions" />
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<title>Data conversion in DB2 UDB CLI functions</title>
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<body id="rzadpdataconversion"><a name="rzadpdataconversion"><!-- --></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">Data conversion in DB2 UDB CLI functions</h1>
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<div><p>As mentioned previously, DB2 UDB CLI manages the transfer and any required
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conversion of data between the application and the Database Management System
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(DBMS). Before the data transfer actually takes place, the source, target
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or both data types are indicated when calling <samp class="codeph">SQLBindParam()</samp>, <samp class="codeph">SQLBindParameter()</samp>, <samp class="codeph">SQLSetParam()</samp>, <samp class="codeph">SQLBindCol()</samp> or <samp class="codeph">SQLGetData()</samp>. These functions
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use the symbolic type names shown in <a href="rzadphddtdcn.htm#rzadphddtdcn__tbcsql">Table 1</a>,
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to identify the data types involved. Refer to the <a href="rzadpfnfetch.htm">SQLFetch - Fetch next row</a>,
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or <a href="rzadpfngcol.htm">SQLGetCol - Retrieve one column of a row of the result set</a> for examples of the functions that
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use the symbolic data types.</p>
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<p>For a list of supported data type conversions in DB2 UDB
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CLI, see the data type compatibility table in the <a href="../db2/rbafzmst.htm"> Assignments and comparisons</a> topic. Other
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conversions can be achieved by using SQL scalar functions or the SQL CAST
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function in the SQL syntax of the statement being processed.</p>
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<p>The functions mentioned in the previous paragraph can be
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used to convert data to other types. Not all data conversions are supported
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or make sense. </p>
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<p>Whenever truncation that is rounding or data type incompatibilities occur
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on a function call, either SQL_ERROR or SQL_SUCCESS_WITH_INFO is returned.
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Further information is then indicated by the SQLSTATE value and other information
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returned by <samp class="codeph">SQLError()</samp>.</p>
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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="rzadphddtdcn.htm" title="This topics shows all of the supported SQL types and their corresponding symbolic names.">Data types and data conversion in DB2 UDB CLI functions</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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