简述mysql中createroutine命令

1、如果用户有create routine 权限那么他就可以创建procedure | function 。

2、如果用户创建了procedure | function 那么mysql 会自动赋予它对procedure | function 的alter routine和execute 权限。

3、例子：

用户root用户创建一个spuser@'localhost'用户并对它赋予create procedure 权限

grant create routine on tempdb.* to spuser@'localhost' identified by '123456';

用spuser@'localhost'用户去创建一个routine

delimiter go
create procedure sp_hello_world()
begin
 select 'hello world';
end 
go

delimiter ;

再一次查看spuser@'localhost'的权限

mysql> show grants;
+---------------------------------------------------------------------------------------------------------------+
| Grants for spuser@localhost |
+---------------------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO 'spuser'@'localhost' IDENTIFIED BY PASSWORD '*6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9' |
| GRANT CREATE ROUTINE ON `tempdb`.* TO 'spuser'@'localhost' |
| GRANT EXECUTE, ALTER ROUTINE ON PROCEDURE `tempdb`.`sp_hello_world` TO 'spuser'@'localhost' |
+---------------------------------------------------------------------------------------------------------------+

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