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122 lines
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122 lines
9.4 KiB
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<!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>Prepare a SQL statement for execution</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-prepare" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">cubrid_prepare</h1>
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<p class="verinfo">(PECL CUBRID >= 8.3.0)</p><p class="refpurpose"><span class="refname">cubrid_prepare</span> — <span class="dc-title">Prepare a SQL statement for execution</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.cubrid-prepare-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_prepare</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$conn_identifier</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$prepare_stmt</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$option</code><span class="initializer"> = 0</span></span>
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] ) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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The <span class="function"><strong>cubrid_prepare()</strong></span> function is a sort of API which represents SQL statements
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compiled previously to a given connection handle. This pre-compiled SQL statement will be included
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in the <span class="function"><strong>cubrid_prepare()</strong></span>.
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</p>
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<p class="para">
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Accordingly, you can use this statement effectively to execute several times repeatedly or to
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process long data. Only a single statement can be used and a parameter may put a question mark (?)
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to appropriate area in the SQL statement. Add a parameter when you bind a value in the VALUES
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clause of INSERT statement or in the WHERE clause. Note that it is allowed to bind a value to a
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MARK(?) by using the <span class="function"><a href="cubrid_bind.html" class="function">cubrid_bind()</a></span> function only.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.cubrid-prepare-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">prepare_stmt</code></dt>
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<dd>
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<p class="para">Prepare query.</p></dd>
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<dt>
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<code class="parameter">option</code></dt>
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<dd>
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<p class="para">OID return option CUBRID_INCLUDE_OID.</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-prepare-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Request identifier, if process is successful;
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</p>
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<p class="para">
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<strong><code>FALSE</code></strong>, if 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-prepare-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1142">
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<p><strong>Example #1 <span class="function"><strong>cubrid_prepare()</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">);<br /><br /></span><span style="color: #0000BB">$sql </span><span style="color: #007700">= <<<EOD<br /></span><span style="color: #DD0000">SELECT g.event_code, e.name <br />FROM game g <br />JOIN event e ON g.event_code=e.code <br />WHERE host_year = ? AND event_code NOT IN (SELECT event_code FROM game WHERE host_year=?) GROUP BY event_code;<br /></span><span style="color: #007700">EOD;<br /><br /></span><span style="color: #0000BB">$req </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #0000BB">$sql</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">cubrid_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">2004</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #0000BB">2000</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$row_num </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_num_rows</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"There are %d event that exits in 2004 olympic but not in 2000. For example:\n\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row_num</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-15s %s\n"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Event_code"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Event_name"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"----------------------------\n"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-15d %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"event_code"</span><span style="color: #007700">], </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"name"</span><span style="color: #007700">]);<br /></span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%-15d %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"event_code"</span><span style="color: #007700">], </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"name"</span><span style="color: #007700">]);<br /><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 class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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There are 27 event that exits in 2004 olympic but not in 2000. For example:
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Event_code Event_name
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----------------------------
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20063 +91kg
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20070 64kg
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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-prepare-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_execute.html" class="function" rel="rdfs-seeAlso">cubrid_execute()</a> - Execute a prepared SQL statement</span></li>
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<li class="member"><span class="function"><a href="cubrid_bind.html" class="function" rel="rdfs-seeAlso">cubrid_bind()</a> - Bind variables to a prepared statement as parameters</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> |