【简答题】【消耗次数：1】
SQL语言的GRANT和REVOKE语句主要是用来维护数据库的[填空]。
参考答案：
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相关题目
【简答题】
用于实现授权管理的SQL语句是：[填空]和Revoke。
【简答题】
数据库[填空]机制用来确保数据库中的数据正确有效相容。
【简答题】
数据库设计包括数据库的[填空]和数据库的[填空]。
【单选题】
当希望删除新闻记录时，就需要在数据库中删除记录，这就要用到SQL语言的哪种语句（ ）
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重新改写index.asp
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Delete语句
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Recordset语句
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Update语句
随机题目
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Since the matter was extremely _____, we dealt with it immediately.
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tough
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tense
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urgent
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instant
【单选题】
As to who is to be hired, it is the Human Resources Department（）has the final say.
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whose
②
those
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these
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that
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Twenty people were _______ wounded in the air crash.
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quickly
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wrongly
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bitterly
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seriously
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Evidence came up _____ specific sounds are recognized by babies as young as 6 months old.
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compressed
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shrank
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dropped
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Would you like some more coffee? There’s still _______ left.
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a few
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few
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a little
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1ittle
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____________ I’m 20.
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How are you?
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How old are you?
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Where are you from?
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May I have your name?
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critical
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aware
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visual
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effective
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The boy is not happy at the new school. He has _________ friends there.
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few
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a few
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little
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a little