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把对关系SPJ的属性QTY的修改权授予用户李勇的SQL语句是——
A．GRANT QTY ON SPJ TO '李勇'
B．GRANT UPDATE(QTY) ON SPJ TO '李勇'
C．GRANT UPDATE (QTY) ON SPJ TO 李勇
D．GRANT UPDATE ON SPJ (QTY) TO 李勇
参考答案和解析
GRANT UPDATE（QTY） ON SPJ TO张三
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考题
单选题把对关系SPJ的属性QTY的修改权授予用户李勇的T-SQL语句是（）A
GRANT QTY ON SPJ TO '李勇'B
GRANT UPDATE(QTY) ON SPJ TO '李勇'C
GRANT UPDATE (QTY) ON SPJ TO 李勇D
GRANT UPDATE ON SPJ (QTY) TO 李勇
考题
单选题向用户授予操作权限的SQL语句是（）。A
CTEATEB
REVOKEC
SELECTD
GRANT
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