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135 lines
8.8 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>Sets the database edition</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.oci-set-edition" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">oci_set_edition</h1>
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<p class="verinfo">(PHP 5 >= 5.3.2, PHP 7, PECL OCI8 >= 1.4.0)</p><p class="refpurpose"><span class="refname">oci_set_edition</span> — <span class="dc-title">Sets the database edition</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.oci-set-edition-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>oci_set_edition</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$edition</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Sets the database "edition" of objects to be used by a subsequent
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connections.
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</p>
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<p class="para">
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Oracle Editions allow concurrent versions of applications to run
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using the same schema and object names. This is useful for
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upgrading live systems.
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</p>
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<p class="para">
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Call <span class="function"><strong>oci_set_edition()</strong></span> before calling
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<span class="function"><a href="oci_connect.html" class="function">oci_connect()</a></span>, <span class="function"><a href="oci_pconnect.html" class="function">oci_pconnect()</a></span>
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or <span class="function"><a href="oci_new_connect.html" class="function">oci_new_connect()</a></span>.
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</p>
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<p class="para">
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If an edition is set that is not valid in the database, connection
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will fail even if <span class="function"><strong>oci_set_edition()</strong></span> returns success.
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</p>
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<p class="para">
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When using persistent connections, if a connection with the
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requested edition setting already exists, it is reused. Otherwise,
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a different persistent connection is created
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.oci-set-edition-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">edition</code></dt>
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<dd>
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<p class="para">
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Oracle Database edition name previously created with the <acronym>SQL</acronym>
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"<em>CREATE EDITION</em>" command.
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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 notes" id="refsect1-function.oci-set-edition-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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<strong>Oracle version requirement</strong><br />
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<p class="para">
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This function is available from Oracle 11<em class="emphasis">g</em>R2 onwards.
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</p>
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</p></blockquote>
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<div class="caution"><strong class="caution">Caution</strong>
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<h1 class="title">Persistent connections</h1>
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<p class="para">
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To avoid inconsistencies and unexpected errors, do not use ALTER
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SESSION SET EDITION to change the edition on persistent connections.
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</p>
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</div>
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<div class="caution"><strong class="caution">Caution</strong>
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<h1 class="title">DRCP Connection Pooling</h1>
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<p class="para">
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To avoid inconsistencies and unexpected errors when using editions
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and <a href="oci8.connection.html" class="link">DRCP</a> with Oracle
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11.2.0.1, keep a one-to-one correspondence between
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the <a href="oci8.configuration.html#ini.oci8.connection-class" class="link">oci8.connection_class</a>
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and the edition name used by applications. Each pooled server of
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a given connection class should only be used with one edition.
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This restriction has been removed with Oracle 11.2.0.2.
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</p>
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</div>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.oci-set-edition-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.oci-set-edition-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-2459">
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<p><strong>Example #1 Two scripts can use different versions of myfunc() at the same time</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 /><br /></span><span style="color: #FF8000">// File 1<br /><br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">"Version 1 of application\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">oci_set_edition</span><span style="color: #007700">(</span><span style="color: #DD0000">'ORA$BASE'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$c </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'hr'</span><span style="color: #007700">, </span><span style="color: #DD0000">'welcome'</span><span style="color: #007700">, </span><span style="color: #DD0000">'localhost/XE'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$s </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_parse</span><span style="color: #007700">(</span><span style="color: #0000BB">$c</span><span style="color: #007700">, </span><span style="color: #DD0000">"begin :r := myfunc(); end;"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_bind_by_name</span><span style="color: #007700">(</span><span style="color: #0000BB">$s</span><span style="color: #007700">, </span><span style="color: #DD0000">":r"</span><span style="color: #007700">, </span><span style="color: #0000BB">$r</span><span style="color: #007700">, </span><span style="color: #0000BB">20</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$s</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">"The result is </span><span style="color: #0000BB">$r</span><span style="color: #DD0000">\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">// File 2<br /><br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">"Version 2 of application\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">oci_set_edition</span><span style="color: #007700">(</span><span style="color: #DD0000">'E1'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$c </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'hr'</span><span style="color: #007700">, </span><span style="color: #DD0000">'welcome'</span><span style="color: #007700">, </span><span style="color: #DD0000">'localhost/XE'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$s </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_parse</span><span style="color: #007700">(</span><span style="color: #0000BB">$c</span><span style="color: #007700">, </span><span style="color: #DD0000">"begin :r := myfunc(); end;"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_bind_by_name</span><span style="color: #007700">(</span><span style="color: #0000BB">$s</span><span style="color: #007700">, </span><span style="color: #DD0000">":r"</span><span style="color: #007700">, </span><span style="color: #0000BB">$r</span><span style="color: #007700">, </span><span style="color: #0000BB">20</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$s</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">"The result is </span><span style="color: #0000BB">$r</span><span style="color: #DD0000">\n"</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>
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</p>
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</div>
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</div></div></div></body></html> |