fbsql_set_transaction
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
fbsql_set_transaction — Set the transaction locking and isolation
说明
fbsql_set_transaction (
resource
$link_identifier
,
int $locking
,
int $isolation
) :
void
Sets the transaction locking
and isolation
.
参数
-
link_identifier
-
由 fbsql_connect() 或 fbsql_pconnect() 返回的 FrontBase 链接标识符.
如可选并未指定,函数会尝试查找一个到 FrontBase 服务器的开放链接,且如没有找到这样的链接,会尝试通过不带参数调用 fbsql_connect() 来创建一个。
-
locking
-
The type of locking to be set. It can be one of the following constants:
FBSQL_LOCK_DEFERRED
,FBSQL_LOCK_OPTIMISTIC
, orFBSQL_LOCK_PESSIMISTIC
. -
isolation
-
The type of isolation to be set. It can be one of the following constants:
FBSQL_ISO_READ_UNCOMMITTED
,FBSQL_ISO_READ_COMMITTED
,FBSQL_ISO_REPEATABLE_READ
,FBSQL_ISO_SERIALIZABLE
, orFBSQL_ISO_VERSIONED
.
返回值
没有返回值。