1·You can use all of the savepoint statements within stored procedures.
您可以在存储过程中使用所有保存点语句。
2·Any reference to a released savepoint is invalid and results in an error.
引用已释放的保存点是无效的，并导致一个错误。
3·Procedure calls can be nested or recursive, but the scope of a savepoint is restricted to the execution of the stored procedure in which it is defined.
过程调用可以是嵌套的或递归的，但是保存点的范围被限制为定义它的存储过程的执行。
4·In the case of an error, the transaction logic can specify that the transaction rollback to a savepoint.
在发生错误的情况下，事务逻辑可以指定该事务回滚到某个保存点。
5·The number of requests for a storage engine to place a savepoint.
存储引擎放置一个保存点的请求数。