87 lines
5.0 KiB
HTML
87 lines
5.0 KiB
HTML
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<meta name="DC.Title" content="DBCS field data types" />
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<meta name="abstract" content="There are two general kinds of double-byte character set (DBCS) data: bracketed-DBCS data and graphic (nonbracketed) DBCS data." />
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<meta name="DC.subject" content="double-byte character set (DBCS), field, data types, DBCS (double-byte character set), data types, data types, DBCS, bracketed-DBCS data, graphic-DBCS data" />
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<meta name="keywords" content="double-byte character set (DBCS), field, data types, DBCS (double-byte character set), data types, data types, DBCS, bracketed-DBCS data, graphic-DBCS data" />
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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>DBCS field data types</title>
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</head>
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<body id="rbafodbcsdt"><a name="rbafodbcsdt"><!-- --></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">DBCS field data types</h1>
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<div><p>There are two general kinds of double-byte character set (DBCS)
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data: bracketed-DBCS data and graphic (nonbracketed) DBCS data. </p>
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<p>Bracketed-DBCS data is preceded by a DBCS shift-out character and followed
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by a DBCS shift-in character. Graphic-DBCS data is not surrounded by shift-out
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and shift-in characters. The application program might require special processing
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to handle bracketed-DBCS data that would not be required for graphic-DBCS
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data.</p>
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<div class="p">The specific DBCS data types (specified in position 35 on the DDS coding
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form.) are: <dl><dt><strong>Entry</strong></dt>
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<dd><strong>Meaning</strong></dd>
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<dt class="dlterm">O</dt>
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<dd>DBCS-open: A character string that contains both single-byte and bracketed
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double-byte data.</dd>
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<dt class="dlterm">E</dt>
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<dd>DBCS-either: A character string that contains either all single-byte data
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or all bracketed double-byte data.</dd>
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<dt class="dlterm">J</dt>
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<dd>DBCS-only: A character string that contains only bracketed double-byte
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data.</dd>
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<dt class="dlterm">G</dt>
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<dd>DBCS-graphic: A character string that contains only nonbracketed double-byte
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data.</dd>
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</dl>
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<div class="note"><span class="notetitle">Note:</span> Files containing DBCS data types can be created on a
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single-byte character set (SBCS) system. Files containing DBCS data types
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can be opened and used on a SBCS system, however, coded character set identifier
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(CCSID) conversion errors can occur when the system tries to convert from
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a DBCS or mixed CCSID to a SBCS CCSID. These errors do not occur
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if the job CCSID is 65535.</div>
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</div>
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<div class="section" id="rbafodbcsdt__rbafodbcscst"><a name="rbafodbcsdt__rbafodbcscst"><!-- --></a><h4 class="sectiontitle">DBCS constants</h4><p>A constant identifies
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the actual character string to be used. The character string is enclosed in
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single quotation marks and a string of DBCS characters is surrounded by the
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DBCS shift-out and shift-in characters (represented by the characters <
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and > in the following examples). A DBCS-graphic constant is preceded by
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the character <em>G</em>. </p>
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<div class="p">The types of DBCS constants are: <dl><dt><strong>Type</strong></dt>
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<dd><strong>Example</strong></dd>
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<dt class="dlterm">DBCS-Only</dt>
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<dd>'<A1A2A3>'</dd>
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<dt class="dlterm">DBCS-Open</dt>
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<dd>'<A1A2A3>BCD'</dd>
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<dt class="dlterm">DBCS-Graphic</dt>
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<dd>G'<A1A2A3>'</dd>
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</dl>
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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="rbafoappdbcs.htm" title="These topics describe double-byte character set (DBCS) considerations as they apply to the database on the iSeries system.">Double-byte character set considerations</a></div>
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</div>
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</div>
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</body>
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</html> |