题目内容

以下聚合函数求最大值的是( )

A. MAX
B. IF
CASE
D. AVG

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A. THEN
B. WHILE
C. WHERE
D. IF

A. WHERE name ! NULL
B. WHERE name NOT NULL
C. WHERE name IS NOT NULL
D. WHERE name!=NULL

A. CREATE
B. INSERT
C. SAVE
D. UPDATE

A. DELETE FROM emp WHERE name='dony';
B. DELETE * FROM emp WHERE name='dony';
C. DROP FROM emp WHERE name='dony';
DROP * FROM emp WHERE name='dony';