07.21 self-summary
Database user management
A user to create a grammar
grammar:
create user username @ "ip address" "identified" by password;
For example:
create user tom@"192.168.101" identified by "123";
The first can create additional ip login other than the unit
create user username @ "%" "identified" by password;
II. Authorized users
1. give permission
grant all on *.* to toms@"%" identified by "123";
- all: CRUD all permissions
- all the way to the place where you can modify the updata, select waiting behind the select field can be expressed only view with a field
- on the back of the library name, indicating that * means all
- followed by the account number and account number to ip
- If you create an account when there is no password can be added to create a password in the authorization here
2. withdraw permission
REVOKE all privileges [column] on 库名.表名 from user@"host";
column represents not fill all the fields
3. Delete user
drop user@"host"
4. refresh authority table
flush privileges;
refresh authority table for some time rights information may be a delay can execute the statement immediately refresh the authority information