用于实现数据存取安全性的SQL语句是 A: CR EATE TABI ,E B: COMMIT C: GRANT和R EVOKE D: ROLLBACK
用于实现数据存取安全性的SQL语句是 A: CR EATE TABI ,E B: COMMIT C: GRANT和R EVOKE D: ROLLBACK
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用于实现数据存取安全性的SQL语句是 A: CR EATE TABI ,E B: COMMIT C: GRANT和R EVOKE D: ROLLBACK