假设需要删除某个角色test_role，可以使用如下（）语句。A、DELETE ROLE test_roleB、REVOKE ROLE test_roleC、DROP ROLE test_roleD、DELETE test_role
假设需要删除某个角色test_role，可以使用如下（）语句。
- A、DELETE ROLE test_role
- B、REVOKE ROLE test_role
- C、DROP ROLE test_role
- D、DELETE test_role
相关考题：
根据SQL标准，要删除表student中所有数据，但不将表student的定义一起删除，下面哪个语句可以适用?()A delete from studentB delete all from studentC delete * from studentD drop table student
在SQL Server 2000中，某数据库中有角色Role和用户User，User是Role角色的成员，且只属于该角色。先对Table表给Role只授予SELECT和DELETE权限，并授予User对T表具有SELECT、UPDATE和DENY DELETE权限，则用户User对Table表可以执行的操作是______。
假设需要删除某个角色test_role,可以使用如下()语句。 A.DELETE ROLE test_roleB.REVOKE ROLE test_roleC.DROP ROLE test_roleD.DELETE test_role
假设需要在数据库中创建角色test_role,可以使用如下()语句。 A.ALTER DATABASE ROLE test_roleB.CREATE ROLE test_roleC.UPDATE ROLE test_roleD.ALTER ROLE test_role
当需要删除某个序列seq_customer_id,可以使用如下()方式。 A.DROP SEQ_CUSTOMER_IDB.DELETE SEQUENCE SEQ_CUSTOMER_IDC.DROP SEQUENCE SEQ_CUSTOMER_IDD.DELETE SEQ_CUSTOMER_ID
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假设需要删除数据库中的CUSTOMER表，可以使用如下（）方式。A、DROP TABLE CUSTOMERB、DROP CUSTOMERC、DELETE TABLE CUSTOMERD、DELETE CUSTOMER
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单选题假设需要在数据库中创建角色test_role，可以使用如下（）语句。AALTER DATABASE ROLE test_roleBCREATE ROLE test_roleCUPDATE ROLE test_roleDALTER ROLE test_role