execution order of statement的意思|示意

Information about all SQL statements executed before the lock-timeout event in the participating transactions, such as statement text, isolation level used, order of execution, and so on.

在参与事务中的锁超时事件前执行的所有sql语句信息，如语句文本、使用的隔离级、执行顺序等等。

Execution always begins at the first statement of the program. Statements are run one at a time, in order from top to bottom.

为了确保一个函数在首次被调用之前已经定义，你必须要之道语句运行的顺序，也就是所谓『运行流程』。