MySQL 中如何查看组成视图的内容
以下是语法-
show create view yourViewName;
让我们首先创建一个表-
create table DemoTable -> ( -> StudentName varchar(20) -> );
使用插入命令在表中插入一些记录-
insert into DemoTable values('Chris');
insert into DemoTable values('Robert');
insert into DemoTable values('David');使用select语句显示表中的所有记录-
select *from DemoTable;
输出结果
这将产生以下输出-
+-------------+ | StudentName | +-------------+ | Chris | | Robert | | David | +-------------+ 3 rows in set (0.00 sec)
以下是为表创建视图的查询-
CREATE VIEW view_DemoTable AS SELECT StudentName from DemoTable;
以下是查询以查看组成MySQL视图的查询-
show create view view_DemoTable;
输出结果
这将产生以下输出-
+-------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+ | View | Create View | character_set_client | collation_connection | +-------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+ | view_DemoTable | CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`%` SQL SECURITY DEFINER VIEW `view_DemoTable` AS select `DemoTable`.`StudentName` AS `StudentName` from `DemoTable` | utf8 | utf8_general_ci | +-------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+ 1 row in set (0.00 sec)
让我们检查查看记录-
select *from view_DemoTable;
输出结果
这将产生以下输出-
+-------------+ | StudentName | +-------------+ | Chris | | Robert | | David | +-------------+ 3 rows in set (0.05 sec)