單項(xiàng)選擇題

如下語句:

執(zhí)行該語句后將有幾條記錄插入到表texample表中()

A.1
B.2
C.3
D.4


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2.單項(xiàng)選擇題變量v_time=’23-MAY-00’, 如下那條語句返回值為’01-JAN-00’?()

A.select round(v_time,’DAY’) from dual
B.select round(v_time,’YEAR’) from dual
C.select round(v_time,’MONTH’) from dual
D.A select round(to_char(v_time,’yyyy’)) from dual