mysql中的视图创建和修改

1、创建视图

CREATE
VIEW `NewView`AS
SELECT
`user`.USER_ID,
`user`.USER_NAME,
department.DEPT_ID,
department.DEPT_NAME
FROM
`user` ,
department
WHERE
`user`.DEPT_ID = department.DEPT_ID ;

2、修改视图

ALTER
ALGORITHM=UNDEFINED
DEFINER=`root`@`127.0.0.1`
SQL SECURITY DEFINER
VIEW `dept_user` AS
select `user`.`USER_ID` AS `USER_ID`,`user`.`USER_NAME` AS `USER_NAME`,`department`.`DEPT_ID` AS `DEPT_ID`,`department`.`DEPT_NAME` AS `DEPT_NAME`
from (`user` join `department`)
where (`user`.`DEPT_ID` = `department`.`DEPT_ID`)
ORDER BY
department.DEPT_NO ASC ;