db2_server_info

(PECL ibm_db2 >= 1.1.1)

db2_server_info — Returns an object with properties that describe the DB2 database server

说明

db2_server_info(resource $connection): object

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:

**Database server properties**
Property name	Return type	Description
DBMS_NAME	string	The name of the database server to which you are connected. For DB2 servers this is a combination of `DB2` followed by the operating system on which the database server is running.
DBMS_VER	string	The version of the database server, in the form of a string "MM.mm.uuuu" where `MM` is the major version, `mm` is the minor version, and `uuuu` is the update. For example, "08.02.0001" represents major version 8, minor version 2, update 1.
DB_CODEPAGE	int	The code page of the database to which you are connected.
DB_NAME	string	The name of the database to which you are connected.
DFT_ISOLATION	string	The default transaction isolation level supported by the server: UR Uncommitted read: changes are immediately visible by all concurrent transactions. CS Cursor stability: a row read by one transaction can be altered and committed by a second concurrent transaction. RS Read stability: a transaction can add or remove rows matching a search condition or a pending transaction. RR Repeatable read: data affected by pending transaction is not available to other transactions. NC No commit: any changes are visible at the end of a successful operation. Explicit commits and rollbacks are not allowed.
IDENTIFIER_QUOTE_CHAR	string	The character used to delimit an identifier.
INST_NAME	string	The instance on the database server that contains the database.
ISOLATION_OPTION	array	An array of the isolation options supported by the database server. The isolation options are described in the DFT_ISOLATION property.
KEYWORDS	array	An array of the keywords reserved by the database server.
LIKE_ESCAPE_CLAUSE	bool	`true` if the database server supports the use of `%` and `_` wildcard characters. `false` if the database server does not support these wildcard characters.
MAX_COL_NAME_LEN	int	Maximum length of a column name supported by the database server, expressed in bytes.
MAX_IDENTIFIER_LEN	int	Maximum length of an SQL identifier supported by the database server, expressed in characters.
MAX_INDEX_SIZE	int	Maximum size of columns combined in an index supported by the database server, expressed in bytes.
MAX_PROC_NAME_LEN	int	Maximum length of a procedure name supported by the database server, expressed in bytes.
MAX_ROW_SIZE	int	Maximum length of a row in a base table supported by the database server, expressed in bytes.
MAX_SCHEMA_NAME_LEN	int	Maximum length of a schema name supported by the database server, expressed in bytes.
MAX_STATEMENT_LEN	int	Maximum length of an SQL statement supported by the database server, expressed in bytes.
MAX_TABLE_NAME_LEN	int	Maximum length of a table name supported by the database server, expressed in bytes.
NON_NULLABLE_COLUMNS	bool	`true` if the database server supports columns that can be defined as NOT NULL, `false` if the database server does not support columns defined as NOT NULL.
PROCEDURES	bool	`true` if the database server supports the use of the CALL statement to call stored procedures, `false` if the database server does not support the CALL statement.
SPECIAL_CHARS	string	A string containing all of the characters other than a-Z, 0-9, and underscore that can be used in an identifier name.
SQL_CONFORMANCE	string	The level of conformance to the ANSI/ISO SQL-92 specification offered by the database server: ENTRY Entry-level SQL-92 compliance. FIPS127 FIPS-127-2 transitional compliance. FULL Full level SQL-92 compliance. INTERMEDIATE Intermediate level SQL-92 compliance.

参数

connection: Specifies an active DB2 client connection.

返回值

Returns an object on a successful call. Returns false on failure.

范例

示例 #1 A db2_server_info() example

To retrieve information about the server, you must pass a valid database connection resource to db2_server_info().


<?php

$conn = db2_connect('sample', 'db2inst1', 'ibmdb2');

$server = db2_server_info( $conn );

if ($server) {
    echo "DBMS_NAME: ";                 var_dump( $server->DBMS_NAME );
    echo "DBMS_VER: ";                  var_dump( $server->DBMS_VER );
    echo "DB_CODEPAGE: ";               var_dump( $server->DB_CODEPAGE );
    echo "DB_NAME: ";                   var_dump( $server->DB_NAME );
    echo "INST_NAME: ";                 var_dump( $server->INST_NAME );
    echo "SPECIAL_CHARS: ";             var_dump( $server->SPECIAL_CHARS );
    echo "KEYWORDS: ";                  var_dump( sizeof($server->KEYWORDS) );
    echo "DFT_ISOLATION: ";             var_dump( $server->DFT_ISOLATION );
    echo "ISOLATION_OPTION: ";
    $il = '';
    foreach( $server->ISOLATION_OPTION as $opt )
    {
       $il .= $opt." ";
    }
    var_dump( $il );
    echo "SQL_CONFORMANCE: ";           var_dump( $server->SQL_CONFORMANCE );
    echo "PROCEDURES: ";                var_dump( $server->PROCEDURES );
    echo "IDENTIFIER_QUOTE_CHAR: ";     var_dump( $server->IDENTIFIER_QUOTE_CHAR );
    echo "LIKE_ESCAPE_CLAUSE: ";        var_dump( $server->LIKE_ESCAPE_CLAUSE );
    echo "MAX_COL_NAME_LEN: ";          var_dump( $server->MAX_COL_NAME_LEN );
    echo "MAX_ROW_SIZE: ";              var_dump( $server->MAX_ROW_SIZE );
    echo "MAX_IDENTIFIER_LEN: ";        var_dump( $server->MAX_IDENTIFIER_LEN );
    echo "MAX_INDEX_SIZE: ";            var_dump( $server->MAX_INDEX_SIZE );
    echo "MAX_PROC_NAME_LEN: ";         var_dump( $server->MAX_PROC_NAME_LEN );
    echo "MAX_SCHEMA_NAME_LEN: ";       var_dump( $server->MAX_SCHEMA_NAME_LEN );
    echo "MAX_STATEMENT_LEN: ";         var_dump( $server->MAX_STATEMENT_LEN );
    echo "MAX_TABLE_NAME_LEN: ";        var_dump( $server->MAX_TABLE_NAME_LEN );
    echo "NON_NULLABLE_COLUMNS: ";      var_dump( $server->NON_NULLABLE_COLUMNS );

    db2_close($conn);
}
?>

以上例程会输出：

DBMS_NAME: string(9) "DB2/LINUX"
DBMS_VER: string(10) "08.02.0000"
DB_CODEPAGE: int(1208)
DB_NAME: string(6) "SAMPLE"
INST_NAME: string(8) "db2inst1"
SPECIAL_CHARS: string(2) "@#"
KEYWORDS: int(179)
DFT_ISOLATION: string(2) "CS"
ISOLATION_OPTION: string(12) "UR CS RS RR "
SQL_CONFORMANCE: string(7) "FIPS127"
PROCEDURES: bool(true)
IDENTIFIER_QUOTE_CHAR: string(1) """
LIKE_ESCAPE_CLAUSE: bool(true)
MAX_COL_NAME_LEN: int(30)
MAX_ROW_SIZE: int(32677)
MAX_IDENTIFIER_LEN: int(18)
MAX_INDEX_SIZE: int(1024)
MAX_PROC_NAME_LEN: int(128)
MAX_SCHEMA_NAME_LEN: int(30)
MAX_STATEMENT_LEN: int(2097152)
MAX_TABLE_NAME_LEN: int(128)
NON_NULLABLE_COLUMNS: bool(true)

参见

db2_client_info() - Returns an object with properties that describe the DB2 database client

add a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址：https://www.php.net/manual/en/function.db2-server-info.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络数据库 JAVA 面试 NoSQL C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 adodb手册 ADORecordSet对象 opcache预加载 Composer的Packagist资源 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet mysql面试题 PHP json解析（json_decode）页面工具 php中几种注释规范 [原创]诡异的php-fpm超时问题纯php实现DES以及TripleDES加密算法 php 修改图片大小支持php7的性能采集扩展 PHP mkdir()写出来的权限与mode值不符合

略微加速

PHP官方手册 - 互联网笔记

db2_server_info

说明

参数

返回值

范例

参见

User Contributed Notes