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。
The following statement shows how a procedure that calls another procedure can retrieve the return status of the nested procedure: GET DIAGNOSTICS RETVAL= RETURN_STATUS; 下面的语句展示了调用另一个过程的过程如何检索嵌套过程的返回状态:GETDIAGNOSTICSRETVAL=RETURNSTATUS;
Sex Identification of Mouse Embryo with Nested and Multiplex PCR Procedure 应用巢式及复合PCR对小鼠早期胚胎进行性别鉴定