在MySQL中, 创建数据库视图的有效方法是什么？( )
CREATE VIEW v1 SELECT * FROM t1 WHERE col1 > 10;
CREATE VIEW v1 AS BEGIN SELECT * FROM t1 END;
CREATE VIEW v1 BEGIN SELECT * FROM t1 END;
CREATE VIEW v1 AS SELECT * FROM t1;
青云测评
青云测评
在MySQL中, 创建数据库视图的有效方法是什么？( )
CREATE VIEW v1 SELECT * FROM t1 WHERE col1 > 10;
CREATE VIEW v1 AS BEGIN SELECT * FROM t1 END;
CREATE VIEW v1 BEGIN SELECT * FROM t1 END;
CREATE VIEW v1 AS SELECT * FROM t1;
