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99 lines
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HTML
99 lines
6.2 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>Perform a query without fetching the results into memory</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-unbuffered-query" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">cubrid_unbuffered_query</h1>
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<p class="verinfo">(PECL CUBRID >= 8.3.0)</p><p class="refpurpose"><span class="refname">cubrid_unbuffered_query</span> — <span class="dc-title">Perform a query without fetching the results into memory</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.cubrid-unbuffered-query-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_unbuffered_query</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$query</code></span>
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[, <span class="methodparam"><span class="type">resource</span> <code class="parameter">$conn_identifier</code></span>
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] ) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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This function performs a query without waiting for that all query results have been complete. It will return
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when the results are being generated.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.cubrid-unbuffered-query-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">query</code></dt>
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<dd>
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<p class="para">A SQL query.</p></dd>
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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">The CUBRID connection. If the connection identifier is not specified, the last connection opened by <span class="function"><a href="cubrid_connect.html" class="function">cubrid_connect()</a></span> is assumed.</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-unbuffered-query-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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For SELECT, SHOW, DESCRIBE or EXPLAIN statements returns a request identifier resource on success.
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</p>
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<p class="para">
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For other type of SQL statements, UPDATE, DELETE, DROP, etc, returns <strong><code>TRUE</code></strong> on success.
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</p>
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<p class="para">
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<strong><code>FALSE</code></strong> on failure.
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</p>
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</div>
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<div class="refsect1 notes" id="refsect1-function.cubrid-unbuffered-query-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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The benefits of <span class="function"><strong>cubrid_unbuffered_query()</strong></span> come
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at a cost: you cannot use <span class="function"><a href="cubrid_num_rows.html" class="function">cubrid_num_rows()</a></span> and
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<span class="function"><a href="cubrid_data_seek.html" class="function">cubrid_data_seek()</a></span> on a result set returned from
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<span class="function"><strong>cubrid_unbuffered_query()</strong></span>.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 examples" id="refsect1-function.cubrid-unbuffered-query-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1179">
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<p><strong>Example #1 <span class="function"><strong>cubrid_unbuffered_query()</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 /> $link </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #0000BB">30000</span><span style="color: #007700">, </span><span style="color: #DD0000">"demodb"</span><span style="color: #007700">, </span><span style="color: #DD0000">"dba"</span><span style="color: #007700">, </span><span style="color: #DD0000">""</span><span style="color: #007700">);<br /> if (!</span><span style="color: #0000BB">$link</span><span style="color: #007700">)<br /> {<br /> die(</span><span style="color: #DD0000">'Could not connect.'</span><span style="color: #007700">);<br /> }<br /> </span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"select * from code"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_unbuffered_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">, </span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /><br /> while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">))<br /> {<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">);<br /> }<br /><br /> </span><span style="color: #0000BB">cubrid_close_request</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">cubrid_disconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</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></div></div></body></html> |