單項(xiàng)選擇題現(xiàn)在需要給zabbix服務(wù)器創(chuàng)建一個(gè)能夠遠(yuǎn)程登錄數(shù)據(jù)庫的用戶jack,下列創(chuàng)建正確的是()

A.create user jack@'%' identified by'123456';
B.drop user jack@'localhost';
C.add user jack@'%' identified by'123456';
D.alter user jack@'localhost' identified by'123456';


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1.單項(xiàng)選擇題在mysql服務(wù)器上存在不再使用的在本地登錄的用戶賬號jerry,現(xiàn)在需要?jiǎng)h除該用戶,下列操作正確的是()

A.drop user jerry@’localhost’;
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A.mysqldump
B.source
C.grant
D.revoke

5.單項(xiàng)選擇題下列哪個(gè)操作是創(chuàng)建一個(gè)可以遠(yuǎn)程登錄Mysql用戶的()

A.create user zhangsan@’localhost’;
B.create user zhangsan@’%’;
C.drop user zhangsan@’localhost’;
D.drop user zhangsan@’%’;