题目内容

删除数据库表“ZZLL”的命令是（）。

A. CREATE TABLE ZZLL
B. ALTER TABLE ZZLL
C. DELETE TABLE ZZLL
DROP TABLE ZZLL

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A. VARCHAR
B. DATE
C. NUMERIC
D. CHAR

ALTER ……VALUES
B. UPDATE ……VALUES
C. UPDATE ……SET
D. INSERT…… SELECT

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A. DELETE FROM student FOR age<30
B. DELETE FROM student WHERE age<30
C. DELETE TABLE student WHERE age<30
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