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175 lines
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HTML
175 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>Returns a result set listing primary keys for a table</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-primary-keys" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">db2_primary_keys</h1>
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<p class="verinfo">(PECL ibm_db2 >= 1.0.0)</p><p class="refpurpose"><span class="refname">db2_primary_keys</span> — <span class="dc-title">
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Returns a result set listing primary keys for a table
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.db2-primary-keys-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_primary_keys</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$connection</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$qualifier</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$schema</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$table-name</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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Returns a result set listing the primary keys for a table.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.db2-primary-keys-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">connection</code></dt>
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<dd>
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<p class="para">
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A valid connection to an IBM DB2, Cloudscape, or Apache Derby database.
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</p>
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</dd>
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<dt>
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<code class="parameter">qualifier</code></dt>
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<dd>
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<p class="para">
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A qualifier for DB2 databases running on OS/390 or z/OS servers. For
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other databases, pass <strong><code>NULL</code></strong> or an empty string.
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</p>
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</dd>
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<dt>
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<code class="parameter">schema</code></dt>
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<dd>
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<p class="para">
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The schema which contains the tables. If <code class="parameter">schema</code>
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is <strong><code>NULL</code></strong>, <span class="function"><strong>db2_primary_keys()</strong></span> matches the schema for
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the current connection.
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</p>
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</dd>
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<dt>
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<code class="parameter">table-name</code></dt>
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<dd>
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<p class="para">
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The name of the table.
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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-primary-keys-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 statement resource with a result set containing rows describing
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the primary keys for the specified table. The result set is composed of the
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following columns:
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>Column name</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>TABLE_CAT</td>
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<td>
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Name of the catalog for the table containing the primary key. The
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value is NULL if this table does not have catalogs.
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</td>
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</tr>
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<tr>
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<td>TABLE_SCHEM</td>
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<td>
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Name of the schema for the table containing the primary key.
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</td>
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</tr>
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<tr>
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<td>TABLE_NAME</td>
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<td>Name of the table containing the primary key.</td>
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</tr>
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<tr>
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<td>COLUMN_NAME</td>
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<td>Name of the column containing the primary key.</td>
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</tr>
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<tr>
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<td>KEY_SEQ</td>
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<td>1-indexed position of the column in the key.</td>
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</tr>
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<tr>
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<td>PK_NAME</td>
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<td>The name of the primary key.</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.db2-primary-keys-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="db2_column_privileges.html" class="function" rel="rdfs-seeAlso">db2_column_privileges()</a> - Returns a result set listing the columns and associated privileges for a table</span></li>
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<li class="member"><span class="function"><a href="db2_columns.html" class="function" rel="rdfs-seeAlso">db2_columns()</a> - Returns a result set listing the columns and associated metadata for a table</span></li>
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<li class="member"><span class="function"><a href="db2_foreign_keys.html" class="function" rel="rdfs-seeAlso">db2_foreign_keys()</a> - Returns a result set listing the foreign keys for a table</span></li>
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<li class="member"><span class="function"><a href="db2_procedure_columns.html" class="function" rel="rdfs-seeAlso">db2_procedure_columns()</a> - Returns a result set listing stored procedure parameters</span></li>
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<li class="member"><span class="function"><a href="db2_procedures.html" class="function" rel="rdfs-seeAlso">db2_procedures()</a> - Returns a result set listing the stored procedures registered in a database</span></li>
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<li class="member"><span class="function"><a href="db2_special_columns.html" class="function" rel="rdfs-seeAlso">db2_special_columns()</a> - Returns a result set listing the unique row identifier columns for a table</span></li>
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<li class="member"><span class="function"><a href="db2_statistics.html" class="function" rel="rdfs-seeAlso">db2_statistics()</a> - Returns a result set listing the index and statistics for a table</span></li>
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<li class="member"><span class="function"><a href="db2_table_privileges.html" class="function" rel="rdfs-seeAlso">db2_table_privileges()</a> - Returns a result set listing the tables and associated privileges in a database</span></li>
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<li class="member"><span class="function"><a href="db2_tables.html" class="function" rel="rdfs-seeAlso">db2_tables()</a> - Returns a result set listing the tables and associated metadata in a database</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> |