当需要返回当前用户的名字,可以执行如下()SQL语句。
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A.SELECT user FROM V$DBA
B.SELECT user FROM dual
C.SELECT name FROM dual
D.SELECT name FROM V$DBA
参考答案:
A.SELECT user FROM V$DBA
B.SELECT user FROM dual
C.SELECT name FROM dual
D.SELECT name FROM V$DBA
参考答案: