function.db2-server-info.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Returns an object with properties that describe the DB2 database server</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.db2-rollback.html">db2_rollback</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.db2-set-option.html">db2_set_option</a></div> <div class="up"><a href="ref.ibm-db2.html">IBM DB2 Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.db2-server-info" class="refentry"> <div class="refnamediv"> <h1 class="refname">db2_server_info</h1> <p class="verinfo">(PECL ibm_db2:1.1.1-1.6.2)</p><p class="refpurpose"><span class="refname">db2_server_info</span> — <span class="dc-title">Returns an object with properties that describe the DB2 database server</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">object</span> <span class="methodname"><b><b>db2_server_info</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$connection</tt></span> )</div> <p class="para rdfs-comment"> This function returns an object with read-only properties that return information about the IBM DB2, Cloudscape, or Apache Derby database server. The following table lists the database server properties: <table border="5"> <caption><b>Database server properties</b></caption> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Property name</th> <th colspan="1">Return type</th> <th colspan="1">Description</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">DBMS_NAME</td> <td colspan="1" rowspan="1" align="left">string</td> <td colspan="1" rowspan="1" align="left">The name of the database server to which you are connected. For DB2 servers this is a combination of <i>DB2</i> followed by the operating system on which the database server is running.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">DBMS_VER</td> <td colspan="1" rowspan="1" align="left">string</td> <td colspan="1" rowspan="1" align="left">The version of the database server, in the form of a string "MM.mm.uuuu" where <var class="varname">MM</var> is the major version, <var class="varname">mm</var> is the minor version, and <var class="varname">uuuu</var> is the update. For example, "08.02.0001" represents major version 8, minor version 2, update 1. </td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">DB_CODEPAGE</td> <td colspan="1" rowspan="1" align="left">int</td> <td colspan="1" rowspan="1" align="left">The code page of the database to which you are connected.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">DB_NAME</td> <td colspan="1" rowspan="1" align="left">string</td> <td colspan="1" rowspan="1" align="left">The name of the database to which you are connected.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">DFT_ISOLATION</td> <td colspan="1" rowspan="1" align="left">string</td> <td colspan="1" rowspan="1" align="left"> <p class="para">The default transaction isolation level supported by the server: <dl> <dt> <span class="term">UR</span> <dd> <p class="para"> Uncommitted read: changes are immediately visible by all concurrent transactions. </p> </dd> </dt> <dt> <span class="term">CS</span> <dd> <p class="para"> Cursor stability: a row read by one transaction can be altered and committed by a second concurrent transaction. </p> </dd> </dt> <dt> <span class="term">RS</span> <dd> <p class="para"> Read stability: a transaction can add or remove rows matching a search condition or a pending transaction. </p> </dd> </dt> <dt> <span class="term">RR</span> <dd> <p class="para"> Repeatable read: data affected by pending transaction is not available to other transactions. </p> </dd> </dt> <dt> <span class="term">NC</span> <dd> <p class="para"> No commit: any changes are visible at the end of a successful operation. Explicit commits and rollbacks are not allowed. </p> </dd> </dt> </dl> </p> </td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">IDENTIFIER_QUOTE_CHAR</td> <td colspan="1" rowspan="1" align="left">string</td> <td colspan="1" rowspan="1" align="left">The character used to delimit an identifier.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">INST_NAME</td> <td colspan="1" rowspan="1" align="left">string</td> <td colspan="1" rowspan="1" align="left">The instance on the database server that contains the database.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">ISOLATION_OPTION</td> <td colspan="1" rowspan="1" align="left">array</td> <td colspan="1" rowspan="1" align="left">An array of the isolation options supported by the database server. The isolation options are described in the DFT_ISOLATION property.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">KEYWORDS</td> <td colspan="1" rowspan="1" align="left">array</td> <td colspan="1" rowspan="1" align="left">An array of the keywords reserved by the database server.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">LIKE_ESCAPE_CLAUSE</td> <td colspan="1" rowspan="1" align="left">bool</td> <td colspan="1" rowspan="1" align="left"><b><tt>TRUE</tt></b> if the database server supports the use of <i>%</i> and <i>_</i> wildcard characters. <b><tt>FALSE</tt></b> if the database server does not support these wildcard characters.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">MAX_COL_NAME_LEN</td> <td colspan="1" rowspan="1" align="left">int</td> <td colspan="1" rowspan="1" align="left">Maximum length of a column name supported by the database server, expressed in bytes.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">MAX_IDENTIFIER_LEN</td> <td colspan="1" rowspan="1" align="left">int</td> <td colspan="1" rowspan="1" align="left">Maximum length of an SQL identifier supported by the database server, expressed in characters.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">MAX_INDEX_SIZE</td> <td colspan="1" rowspan="1" align="left">int</td> <td colspan="1" rowspan="1" align="left">Maximum size of columns combined in an index supported by the database server, expressed in bytes.</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">MAX_PROC_NAME_LEN</td> <td colspan="1" rowspan="1" align="left">int</td> <td colspan="1" rowspan="1" align="left">Maximum length of a procedure name supported by the database server, expressed in bytes.</td> </tr> <tr valign="middle">⌨️ 快捷键说明
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