用命令“INDEX ON姓名TAG index_name UNIQUE”建立索引，其索引类型是（ ）。

A．DELETE FROM 图书 FOR 图书号 LIKE "A%"
B．DELETE FROM 图书 WHILE 图书号 LIKE "A%"
C．DELETE FROM 图书 WHERE 图书号= "A *"
D．DELETE FROM 图书 WHERE 图书号 LIKE"A%"

A．SELECT*FROM sWHERE 性别=′女′AND年龄<=18ORDER BY 4DESC INTO TABLE WS
B．SELECT * FROM SWHERE性别=′女′AND年龄<=18ORDER BY年龄INTO TABLE WS
C．SELECT * FROM SWHERE性别=′女′AND年龄<=18 ORDER BY ′年龄′DESC INTO TABLE WS
D．SELECT * FROM SWHERE性别=′女′OR年龄<=1 8 ORDER BY′年龄′ASC INTO TARLE WS

A．MODIFY VIEW
B．CREATE VIEW
C．DELETE VIEW
D．RENAME VIEW