ScotlandPHP

db2_autocommit

(PECL ibm_db2 >= 1.0.0)

db2_autocommit Returns or sets the AUTOCOMMIT state for a database connection

说明

mixed db2_autocommit ( resource $connection [, bool $value ] )

Sets or gets the AUTOCOMMIT behavior of the specified connection resource.

参数

connection

A valid database connection resource variable as returned from db2_connect() or db2_pconnect().

value

One of the following constants:

DB2_AUTOCOMMIT_OFF

Turns AUTOCOMMIT off.

DB2_AUTOCOMMIT_ON

Turns AUTOCOMMIT on.

返回值

When db2_autocommit() receives only the connection parameter, it returns the current state of AUTOCOMMIT for the requested connection as an integer value. A value of 0 indicates that AUTOCOMMIT is off, while a value of 1 indicates that AUTOCOMMIT is on.

When db2_autocommit() receives both the connection parameter and autocommit parameter, it attempts to set the AUTOCOMMIT state of the requested connection to the corresponding state. 成功时返回 TRUE, 或者在失败时返回 FALSE

范例

Example #1 Retrieving the AUTOCOMMIT value for a connection

In the following example, a connection which has been created with AUTOCOMMIT turned off is tested with the db2_autocommit() function.

<?php
$options 
= array('autocommit' => DB2_AUTOCOMMIT_OFF);
$conn db2_connect($database$user$password$options);
$ac db2_autocommit($conn);
if (
$ac == 0) {
    print 
"$ac -- AUTOCOMMIT is off.";
} else {
    print 
"$ac -- AUTOCOMMIT is on.";
}
?>

以上例程会输出:

0 -- AUTOCOMMIT is off.

Example #2 Setting the AUTOCOMMIT value for a connection

In the following example, a connection which was initially created with AUTOCOMMIT turned off has its behavior changed to turn AUTOCOMMIT on.

<?php
$options 
= array('autocommit' => DB2_AUTOCOMMIT_OFF);
$conn db2_connect($database$user$password$options);

// Turn AUTOCOMMIT on
$rc db2_autocommit($connDB2_AUTOCOMMIT_ON);
if (
$rc) {
    print 
"Turning AUTOCOMMIT on succeeded.\n";
}

// Check AUTOCOMMIT state
$ac db2_autocommit($conn);
if (
$ac == 0) {
    print 
"$ac -- AUTOCOMMIT is off.";
} else {
    print 
"$ac -- AUTOCOMMIT is on.";
}
?>

以上例程会输出:

Turning AUTOCOMMIT on succeeded.
1 -- AUTOCOMMIT is on.

参见

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