如何在MySQL中创建视图？
要在MySQL中创建视图，可以使用CREATEVIEW命令。语法如下-
CREATE VIEW yourViewName as SELECT yourColumName1, yourColumName2, yourColumName3,...... yourColumNameN from yourTableName;
为了理解上述语法，让我们首先创建一个表。以下是创建表的查询-
create table ViewDemo −> ( −> Id int, −> Name varchar(200), −> Age int −> );
实现以上语法以创建视图。以下是在MySQL中创建视图的查询-
create view LookUpTable as select Id,Name from ViewDemo;
现在检查是否已使用show命令创建视图。查询如下-
show create table LookUpTable;
以下是输出-
+-------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+ | View | Create View | character_set_client | collation_connection | +-------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+ | lookuptable | CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`%` SQL SECURITY DEFINER VIEW `lookuptable` AS select `viewdemo`.`Id` AS `Id`,`viewdemo`.`Name` AS `Name` from `viewdemo` | utf8 | utf8_general_ci | +-------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+ 1 row in set (0.00 sec)