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100 lines
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HTML
100 lines
6.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Get BLOB/CLOB data</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.cubrid-lob-get" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">cubrid_lob_get</h1>
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<p class="verinfo">(PECL CUBRID >= 8.3.1)</p><p class="refpurpose"><span class="refname">cubrid_lob_get</span> — <span class="dc-title">Get BLOB/CLOB data</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.cubrid-lob-get-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>cubrid_lob_get</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$conn_identifier</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$sql</code></span>
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) : <span class="type">array</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>cubrid_lob_get()</strong></span> is used to get BLOB/CLOB meta info from CUBRID database,
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CUBRID gets BLOB/CLOB by executing the SQL statement, and returns all LOBs as a resource array.
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Be sure that the SQL retrieves only one column and its data type is BLOB or CLOB.
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</p>
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<p class="para">
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Remember to use <span class="function"><a href="cubrid_lob_close.html" class="function">cubrid_lob_close()</a></span> to release the LOBs if you don't need it any more.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.cubrid-lob-get-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">conn_identifier</code></dt>
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<dd>
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<p class="para">Connection identifier.</p></dd>
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<dt>
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<code class="parameter">sql</code></dt>
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<dd>
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<p class="para">SQL statement to be executed.</p></dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.cubrid-lob-get-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Return an array of LOB resources, when process is successful.
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</p>
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<p class="para">
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<strong><code>FALSE</code></strong>, when process is unsuccessful.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.cubrid-lob-get-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1121">
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<p><strong>Example #1 <span class="function"><strong>cubrid_lob_get()</strong></span> example</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_connect </span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #0000BB">33000</span><span style="color: #007700">, </span><span style="color: #DD0000">"demodb"</span><span style="color: #007700">, </span><span style="color: #DD0000">"dba"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">,</span><span style="color: #DD0000">"DROP TABLE if exists doc"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">,</span><span style="color: #DD0000">"CREATE TABLE doc (id INT, doc_content CLOB)"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">,</span><span style="color: #DD0000">"INSERT INTO doc VALUES (5,'hello,cubrid')"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$lobs </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_lob_get</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT doc_content FROM doc WHERE id=5"</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">"Doc size: "</span><span style="color: #007700">.</span><span style="color: #0000BB">cubrid_lob_size</span><span style="color: #007700">(</span><span style="color: #0000BB">$lobs</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">]).</span><span style="color: #DD0000">" bytes"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">cubrid_lob_export</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #0000BB">$lobs</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">], </span><span style="color: #DD0000">"doc_5.txt"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_lob_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$lobs</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_disconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.cubrid-lob-get-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="cubrid_lob_close.html" class="function" rel="rdfs-seeAlso">cubrid_lob_close()</a> - Close BLOB/CLOB data</span></li>
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<li class="member"><span class="function"><a href="cubrid_lob_size.html" class="function" rel="rdfs-seeAlso">cubrid_lob_size()</a> - Get BLOB/CLOB data size</span></li>
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<li class="member"><span class="function"><a href="cubrid_lob_export.html" class="function" rel="rdfs-seeAlso">cubrid_lob_export()</a> - Export BLOB/CLOB data to file</span></li>
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<li class="member"><span class="function"><a href="cubrid_lob_send.html" class="function" rel="rdfs-seeAlso">cubrid_lob_send()</a> - Read BLOB/CLOB data and send straight to browser</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |