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Dokumen ini menggunakan Manual laman web PHP Cina Lepaskan
(PECL ibm_db2 >= 1.0.0)
db2_autocommit — Returns or sets the AUTOCOMMIT state for a database connection
$connection
[, bool $value
] )Sets or gets the AUTOCOMMIT behavior of the specified connection resource.
connection
A valid database connection resource variable as returned from db2_connect() or db2_pconnect() .
value
One of the following constants:
Turns AUTOCOMMIT off.
Turns AUTOCOMMIT on.
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
。
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 ( $conn , DB2_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.