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5.8 KiB
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88 lines
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<meta name="DC.Title" content="Host structures in PL/I applications that use SQL" />
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<meta name="abstract" content="This figure shows the syntax for valid host structure declarations." />
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<meta name="description" content="This figure shows the syntax for valid host structure declarations." />
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<title>Host structures in PL/I applications that use SQL</title>
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<body id="rzajphostapppli"><a name="rzajphostapppli"><!-- --></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">Host structures in PL/I applications that use SQL</h1>
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<div><p>This figure shows the syntax for valid host structure declarations.</p>
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<div class="section"><h4 class="sectiontitle">Host structures</h4><pre><span><img src="./c.gif" border="0" alt="Read syntax diagram" longdesc="rzajphostappplisyn1.htm" /></span><a href="#d0e15"><img src="./c.gif" border="0" alt="Skip visual syntax diagram" /></a>
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>>-+-+-DECLARE-+--1--<i>variable-name</i>--+----------------------+--,-+-->
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| '-DCL-----' '-<i>Scope and/or storage</i>-' |
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'-<i>level-1</i>--<i>variable-name</i>--,----------------------------------'
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.-,----------------------------------------.
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V |
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>----<i>level-2</i>--+-<i>var-1</i>-----------+--<i>data-types</i>-+--;-------------><
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| .-,-----. |
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| V | |
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'-(----<i>var-2</i>-+--)-'
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data-types
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|--+-+-BINARY-+--+-FIXED-+--+-----------------+--+-----------+-----+--|
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| '-BIN----' '-FLOAT-' '-(--<i>precision</i>--)-' '-UNALIGNED-' |
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+-+-DECIMAL-+--+-FIXED--+-------------------------------+--+----+
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| '-DEC-----' | '-(--<i>precision</i>--+----------+--)-' | |
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| | '-,--<i>scale</i>-' | |
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| '-FLOAT--+-----------------+--+-----------+-' |
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| '-(--<i>precision</i>--)-' '-UNALIGNED-' |
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+-PICTURE--<i>picture-string</i>---------------------------------------+
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+-+-CHARACTER-+--+--------------+--+--------------------------+-+
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| '-CHAR------' '-(--<i>length</i>--)-' '-+-VARYING-+--+---------+-' |
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| '-VAR-----' '-ALIGNED-' |
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+-SQL TYPE IS--+-+-CLOB-+--(--<i>lob-length</i>--+---+--)-+------------+
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| | '-BLOB-' '-K-' | |
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| +-+-CLOB_LOCATOR---+----------------+ |
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| | +-DBCLOB_LOCATOR-+ | |
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| | '-BLOB_LOCATOR---' | |
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| '-+-CLOB_FILE---+-------------------' |
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| +-DBCLOB_FILE-+ |
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| '-BLOB_FILE---' |
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+-SQL TYPE IS ROWID---------------------------------------------+
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'-SQL TYPE IS--+-BINARY---------+--(--<i>length</i>--)-----------------'
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+-VARBINARY------+
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'-BINARY VARYING-'
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</pre><a name="d0e15"></a></div>
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<div class="section"> <div class="note"><span class="notetitle">Notes:</span> <ol><li>Level-1 indicates that there is an intermediate level structure.</li>
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<li>Level-1 must be an integer constant between 1 and 254.</li>
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<li>Level-2 must be an integer constant between 2 and 255.</li>
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<li>For details on declaring numeric, character, LOB, ROWID, and binary host
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variables, see the notes under numeric-host variables, character-host variables,
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LOB host variables, ROWID host variables, and binary host variables.</li>
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</ol>
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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="rzajphoststrucpli.htm" title="In PL/I programs, you can define a host structure, which is a named set of elementary PL/I variables. A host structure name can be a group name whose subordinate levels name elementary PL/I variables.">Use host structures in PL/I applications that use SQL</a></div>
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</div>
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</div>
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