MySQL学习笔记——显示数据库信息
show privileges
显示可用的系统权限清单。
View Code
mysql> show privileges;
+-------------------------+---------------------------------------+-------------------------------------------------------+
| Privilege | Context | Comment |
+-------------------------+---------------------------------------+-------------------------------------------------------+
| Alter | Tables | To alter the table |
| Alter routine | Functions,Procedures | To alter or drop stored functions/procedures |
| Create | Databases,Tables,Indexes | To create new databases and tables |
| Create routine | Databases | To use CREATE FUNCTION/PROCEDURE |
| Create temporary tables | Databases | To use CREATE TEMPORARY TABLE |
| Create view | Tables | To create new views |
| Create user | Server Admin | To create new users |
| Delete | Tables | To delete existing rows |
| Drop | Databases,Tables | To drop databases, tables, and views |
| Event | Server Admin | To create, alter, drop and execute events |
| Execute | Functions,Procedures | To execute stored routines |
| File | File access on server | To read and write files on the server |
| Grant option | Databases,Tables,Functions,Procedures | To give to other users those privileges you possess |
| Index | Tables | To create or drop indexes |
| Insert | Tables | To insert data into tables |
| Lock tables | Databases | To use LOCK TABLES (together with SELECT privilege) |
| Process | Server Admin | To view the plain text of currently executing queries |
| Proxy | Server Admin | To make proxy user possible |
| References | Databases,Tables | To have references on tables |
| Reload | Server Admin | To reload or refresh tables, logs and privileges |
| Replication client | Server Admin | To ask where the slave or master servers are |
| Replication slave | Server Admin | To read binary log events from the master |
| Select | Tables | To retrieve rows from table |
| Show databases | Server Admin | To see all databases with SHOW DATABASES |
| Show view | Tables | To see views with SHOW CREATE VIEW |
| Shutdown | Server Admin | To shut down the server |
| Super | Server Admin | To use KILL thread, SET GLOBAL, CHANGE MASTER, etc. |
| Trigger | Tables | To use triggers |
| Create tablespace | Server Admin | To create/alter/drop tablespaces |
| Update | Tables | To update existing rows |
| Usage | Server Admin | No privileges - allow connect only |
+-------------------------+---------------------------------------+-------------------------------------------------------+
select user,host from mysql.user;
显示服务器上用户账号的一个列表。
SET PASSWORD [for 'user'@'host']=PASSWORD('password')
修改用户账户密码。
SHOW GRANTS [FOR 'user'[@'host']]
为给定用户列出GRANT语句。如果没有指定FOR语句，默认为当前用户。
SELECT DATABASE();
显示当前数据库。
SELECT CURRENT_USER();
显示当前mysql服务器连接的用户名和主机的组合。
SELECT USER();
显示当前会话连接的用户名和主机的组合。
SHOW CREATE TABLE
SHOW CREATE TABLE tbl_name
Shows the CREATE TABLE statement that creates the given table.
SHOW CREATE {DATABASE | SCHEMA} db_name
Shows the CREATE DATABASE statement that creates the given database. SHOW CREATE SCHEMA is a synonym forSHOW CREATE DATABASE.
待续。。。
