81 lines
4.9 KiB
HTML
81 lines
4.9 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="SQL7939 - Data conversion required on INSERT or UPDATE" />
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<meta name="DC.subject" content="performance, open data path messages, information messages, open data path, message, open data path information" />
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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>SQL7939 - Data conversion required on INSERT or UPDATE</title>
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</head>
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<body id="sql7939"><a name="sql7939"><!-- --></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">SQL7939 - Data conversion required on INSERT or UPDATE</h1>
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<div>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr><th colspan="2" align="center" valign="middle" id="d0e29">SQL7939</th>
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</tr>
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</thead>
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<tbody><tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e29 ">Message Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e29 ">Data conversion required on INSERT or UPDATE.</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e29 ">Cause Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e29 ">The INSERT or UPDATE values cannot be directly moved to the columns
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because the data type or length of a value is different than one of the columns.
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The INSERT or UPDATE statement ran correctly. Performance, however, would
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be improved if no data conversion was required. The reason data conversion
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is required is &1. <ul><li>Reason 1 is that the INSERT or UPDATE value is a character or graphic
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string of a different length than column &2.</li>
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<li>Reason 2 is that the INSERT or UPDATE value is a numeric type that is
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different than the type of column &2.</li>
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<li>Reason 3 is that the INSERT or UPDATE value is a variable length string
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and column &2 is not.</li>
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<li>Reason 4 is that the INSERT or UPDATE value is not a variable length string
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and column &2 is.</li>
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<li>Reason 5 is that the INSERT or UPDATE value is a variable length string
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whose maximum length is different that the maximum length of column &2.</li>
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<li>Reason 6 is that a data conversion was required on the mapping of the
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INSERT or UPDATE value to column &2, such as a CCSID conversion.</li>
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<li>Reason 7 is that the INSERT or UPDATE value is a character string and
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column &2 is of type DATE, TIME, or TIMESTAMP.</li>
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<li>Reason 8 is that the target table of the INSERT is not a SQL table.</li>
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</ul>
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</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e29 ">Recovery Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e29 ">To get better performance, try to use values of the same type and length
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as their corresponding columns.</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="section"><p>The attributes of the INSERT or UPDATE values are different than
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the attributes of the columns receiving the values. Since the values must
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be converted, they cannot be directly moved into the columns. Performance
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could be improved if the attributes of the INSERT or UPDATE values matched
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the attributes of the columns receiving the values.</p>
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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="pimesodp.htm" title="Several of the following SQL run-time messages refer to open data paths.">Query optimization performance information messages and open data paths</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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