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[主观题]
当在SQL*Plus中需要以DBA连接到Oracle数据库,可以使用如下()方式。
A.CONNECT SYS/password SYSDBA
B.CONNECT SYS/password AS SYSDBA
C.CONNECT AS SYSDBA SYS/password
D.CONNECT DBA SYS/password
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A.CONNECT SYS/password SYSDBA
B.CONNECT SYS/password AS SYSDBA
C.CONNECT AS SYSDBA SYS/password
D.CONNECT DBA SYS/password
第2题
A.ALTER TABLE CUSTOMER RENAME CUSTOMER_CHANGE
B.ALTER TABLE CUSTOMER RENAME TO CUSTOMER_CHANGE
C.RENAME TABLE CUSTOMER TO CUSTOMER_CHANGE
D.RENAME TABLE CUSTOMER CUSTOMER_CHANGE
第3题
A.ALTER TABLE CUSTOMER DROP column LOGOUTTIME
B.UPDATE TABLE DROP column LOGOUTTIME
C.ALTER TABLE CUSTOMER DROP LOGOUTTIME
D.UPDATE TABLE DROP LOGOUTTIME
第4题
A.DROP TABLE CUSTOMER
B.DROP CUSTOMER
C.DELETE TABLE CUSTOMER
D.DELETE CUSTOMER
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