我想把mysql数据库某个用户禁用掉，让这个用户无法登陆在哪设置

mysql 创建一个用户 hail，密码 hail，指定一个数据库 haildb 给 hail

mysql -u root -p

password

use mysql

insert into user(host,user,password) values('localhost','hail',password('hail'))

flush privileges

create database haildb

grant all privileges on haildb.* to hail@localhost identified by 'hail'

flush privileges

如果想指定部分权限给用户

grant select,update on haildb.* to hail@localhost identified by 'hail'

flush privileges

删除用户

delete from user where user='hail' and host='localhost'

flush privileges

删除用户数据库

drop database haildb

修改指定用户密码

update user set password=password('new_password') where user='hail' and host='localhost'

flush privileges

使用户不具有Create User权限或者deny Create User权限

下面是权限列表

mysql>show privileges \G

*************************** 1. row ***************************

Privilege: Alter

Context: Tables

Comment: To alter the table

*************************** 2. row ***************************

Privilege: Alter routine

Context: Functions,Procedures

Comment: To alter or drop stored functions/procedures

*************************** 3. row ***************************

Privilege: Create

Context: Databases,Tables,Indexes

Comment: To create new databases and tables

*************************** 4. row ***************************

Privilege: Create routine

Context: Databases

Comment: To use CREATE FUNCTION/PROCEDURE

*************************** 5. row ***************************

Privilege: Create temporary tables

Context: Databases

Comment: To use CREATE TEMPORARY TABLE

*************************** 6. row ***************************

Privilege: Create view

Context: Tables

Comment: To create new views

*************************** 7. row ***************************

Privilege: Create user

Context: Server Admin

Comment: To create new users

*************************** 8. row ***************************

Privilege: Delete

Context: Tables

Comment: To delete existing rows

*************************** 9. row ***************************

Privilege: Drop

Context: Databases,Tables

Comment: To drop databases, tables, and views

*************************** 10. row ***************************

Privilege: Event

Context: Server Admin

Comment: To create, alter, drop and execute events

*************************** 11. row ***************************

Privilege: Execute

Context: Functions,Procedures

Comment: To execute stored routines

*************************** 12. row ***************************

Privilege: File

Context: File access on server

Comment: To read and write files on the server

*************************** 13. row ***************************

Privilege: Grant option

Context: Databases,Tables,Functions,Procedures

Comment: To give to other users those privileges you possess

*************************** 14. row ***************************

Privilege: Index

Context: Tables

Comment: To create or drop indexes

*************************** 15. row ***************************

Privilege: Insert

Context: Tables

Comment: To insert data into tables

*************************** 16. row ***************************

Privilege: Lock tables

Context: Databases

Comment: To use LOCK TABLES (together with SELECT privilege)

*************************** 17. row ***************************

Privilege: Process

Context: Server Admin

Comment: To view the plain text of currently executing queries

*************************** 18. row ***************************

Privilege: Proxy

Context: Server Admin

Comment: To make proxy user possible

*************************** 19. row ***************************

Privilege: References

Context: Databases,Tables

Comment: To have references on tables

*************************** 20. row ***************************

Privilege: Reload

Context: Server Admin

Comment: To reload or refresh tables, logs and privileges

*************************** 21. row ***************************

Privilege: Replication client

Context: Server Admin

Comment: To ask where the slave or master servers are

*************************** 22. row ***************************

Privilege: Replication slave

Context: Server Admin

Comment: To read binary log events from the master

*************************** 23. row ***************************

Privilege: Select

Context: Tables

Comment: To retrieve rows from table

*************************** 24. row ***************************

Privilege: Show databases

Context: Server Admin

Comment: To see all databases with SHOW DATABASES

*************************** 25. row ***************************

Privilege: Show view

Context: Tables

Comment: To see views with SHOW CREATE VIEW

*************************** 26. row ***************************

Privilege: Shutdown

Context: Server Admin

Comment: To shut down the server

*************************** 27. row ***************************

Privilege: Super

Context: Server Admin

Comment: To use KILL thread, SET GLOBAL, CHANGE MASTER, etc.

*************************** 28. row ***************************

Privilege: Trigger

Context: Tables

Comment: To use triggers

*************************** 29. row ***************************

Privilege: Create tablespace

Context: Server Admin

Comment: To create/alter/drop tablespaces

*************************** 30. row ***************************

Privilege: Update

Context: Tables

Comment: To update existing rows

*************************** 31. row ***************************

Privilege: Usage

Context: Server Admin

Comment: No privileges - allow connect only

31 rows in set (0.00 sec)

mysql>

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