单选题Which technique retrieves the error number when explicit DML fails?（）A SQLCODE in an On-Error trigger. B SQLCODE in an exception handler. C DBMS_ERROR_CODE in an On-Error trigger. D DBMS_ERROR_CODE in an exception handler.
题目
单选题
Which technique retrieves the error number when explicit DML fails?（）
A
SQLCODE in an On-Error trigger.
B
SQLCODE in an exception handler.
C
DBMS_ERROR_CODE in an On-Error trigger.
D
DBMS_ERROR_CODE in an exception handler.
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参考答案和解析
正确答案：
A
解析：
暂无解析