75 lines
5.0 KiB
HTML
75 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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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Rules for string assignment of host variables in SQL statements" />
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<meta name="abstract" content="This topic introduces rules regarding character string assignment." />
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<meta name="description" content="This topic introduces rules regarding character string assignment." />
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<meta name="DC.subject" content="string assignment, rule using host variable, host variable, string assignment, rule, assignment rule, string" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Rules for string assignment of host variables in SQL statements</title>
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</head>
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<body id="rzajpstringrule"><a name="rzajpstringrule"><!-- --></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">Rules for string assignment of host variables in SQL statements</h1>
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<div><p>This topic introduces rules regarding character string assignment.</p>
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<div class="section"><p>The rules are as follows:</p>
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<ul><li>When a character or graphic string is assigned to a column, the length
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of the string value must not be greater than the length attribute of the column.
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(Trailing blanks are normally included in the length of the string. However,
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for string assignment, trailing blanks are not included in the length of the
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string.)</li>
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<li>When a binary string is assigned to a column, the length of the string
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value must not be greater than the length attribute of the column. (Hexadecimal
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zeros are normally included in the length of the string. However, for string
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assignment, hexadecimal zeros are not included in the length of the string.)</li>
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<li>When a MIXED character result column is assigned to a MIXED column, the
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value of the MIXED character result column must be a valid MIXED character
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string.</li>
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<li>When the value of a result column is assigned to a host
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variable and the string value of the result column is longer than the length
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attribute of the host variable, the string is truncated on the right by the
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necessary number of characters. If this occurs, SQLWARN0 and SQLWARN1 (in
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the SQL communication area (SQLCA)) are set to W.</li>
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<li>When the value of a result column is assigned to a fixed-length character
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or graphic host variable or when the value of a host variable is assigned
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to a fixed-length character or graphic result column and the length of the
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string value is less than the length attribute of the target, the string is
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padded on the right with the necessary number of blanks.</li>
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<li>When the value of a result column is assigned to a fixed-length binary
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host variable or when the value of a host variable is assigned to a fixed-length
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binary result column and the length of the string value is less than the length
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attribute of the target, the string is padded on the right with the necessary
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number of hexadecimal zeros.</li>
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<li>When a MIXED character result column is truncated because the length of
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the host variable into which it was being assigned was less than the length
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of the string, the shift-in character at the end of the string is preserved.
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The result, therefore, is still a valid MIXED character string.</li>
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</ul>
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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="rzajpasnrule.htm" title="SQL values are assigned to host variables during the running of FETCH, SELECT INTO, SET, and VALUES INTO statements. SQL values are assigned from host variables during the running of INSERT, UPDATE, and CALL statements.">Assignment rules for host variables in SQL statements</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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