If the stored procedure contains a TRY... CATCH construct, the error transfers control to the CATCH block in the stored procedure.
如果存储过程包含TRY…CATCH构造，则错误会将控制传输给存储过程中的CATCH块。
The principles underlying the control and hardware topology as well as a block diagram for the main procedure are alsop…
文中还叙述了系统的控制原理及硬件组成，且给出了主要的程序框图。
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