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148 lines
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HTML
148 lines
8.2 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>Requests the next result set from a stored procedure</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.db2-next-result" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">db2_next_result</h1>
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<p class="verinfo">(PECL ibm_db2 >= 1.0.0)</p><p class="refpurpose"><span class="refname">db2_next_result</span> — <span class="dc-title">
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Requests the next result set from a stored procedure
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.db2-next-result-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>db2_next_result</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$stmt</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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A stored procedure can return zero or more result sets. While you handle
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the first result set in exactly the same way you would handle the results
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returned by a simple SELECT statement, to fetch the second and subsequent
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result sets from a stored procedure you must call the
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<span class="function"><strong>db2_next_result()</strong></span> function and return the result to a
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uniquely named PHP variable.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.db2-next-result-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">stmt</code></dt>
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<dd>
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<p class="para">
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A prepared statement returned from <span class="function"><a href="db2_exec.html" class="function">db2_exec()</a></span> or
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<span class="function"><a href="db2_execute.html" class="function">db2_execute()</a></span>.
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</p>
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</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.db2-next-result-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns a new statement resource containing the next result set if the
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stored procedure returned another result set. Returns <strong><code>FALSE</code></strong> if the stored
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procedure did not return another result set.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.db2-next-result-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-1265">
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<p><strong>Example #1 Calling a stored procedure that returns multiple result sets</strong></p>
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<div class="example-contents"><p>
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In the following example, we call a stored procedure that returns three
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result sets. The first result set is fetched directly from the same
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statement resource on which we invoked the CALL statement, while the
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second and third result sets are fetched from statement resources
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returned from our calls to the <span class="function"><strong>db2_next_result()</strong></span>
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function.
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</p></div>
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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">db2_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$database</span><span style="color: #007700">, </span><span style="color: #0000BB">$user</span><span style="color: #007700">, </span><span style="color: #0000BB">$password</span><span style="color: #007700">);<br /><br />if (</span><span style="color: #0000BB">$conn</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_exec</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">'CALL multiResults()'</span><span style="color: #007700">);<br /><br /> print </span><span style="color: #DD0000">"Fetching first result set\n"</span><span style="color: #007700">;<br /> while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">);<br /> }<br /><br /> print </span><span style="color: #DD0000">"\nFetching second result set\n"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$res </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_next_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /> if (</span><span style="color: #0000BB">$res</span><span style="color: #007700">) {<br /> while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$res</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">);<br /> }<br /> }<br /><br /> print </span><span style="color: #DD0000">"\nFetching third result set\n"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$res2 </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_next_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /> if (</span><span style="color: #0000BB">$res2</span><span style="color: #007700">) {<br /> while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$res2</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">);<br /> }<br /> }<br /><br /> </span><span style="color: #0000BB">db2_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br />}<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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Fetching first result set
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array(2) {
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[0]=>
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string(16) "Bubbles "
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[1]=>
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int(3)
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}
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array(2) {
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[0]=>
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string(16) "Gizmo "
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[1]=>
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int(4)
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}
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Fetching second result set
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array(4) {
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[0]=>
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string(16) "Sweater "
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[1]=>
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int(6)
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[2]=>
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string(5) "llama"
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[3]=>
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string(6) "150.00"
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}
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array(4) {
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[0]=>
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string(16) "Smarty "
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[1]=>
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int(2)
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[2]=>
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string(5) "horse"
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[3]=>
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string(6) "350.00"
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}
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Fetching third result set
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array(1) {
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[0]=>
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string(16) "Bubbles "
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}
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array(1) {
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[0]=>
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string(16) "Gizmo "
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}
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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</div></div></div></body></html> |