试题详情
- 单项选择题当需要返回当前用户的名字,可以执行如下()SQL语句。
A、SELECT user FROM V$DBA
B、SELECT user FROM dual
C、SELECT name FROM dual
D、SELECT name FROM V$DBA
- B
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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
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