SET NAMES binary;
drop database if exists mysqltest;
delete from mysql.user where user like 'mysqltest\_%';
delete from mysql.db where user like 'mysqltest\_%';
delete from mysql.tables_priv where user like 'mysqltest\_%';
delete from mysql.columns_priv where user like 'mysqltest\_%';
flush privileges;
grant all privileges on `my\_%`.* to mysqltest_1@localhost with grant option;
select current_user();
current_user()
mysqltest_1@localhost
select current_user;
current_user
mysqltest_1@localhost
grant all privileges on `my\_1`.* to mysqltest_2@localhost with grant option;
grant all privileges on `my_%`.* to mysqltest_3@localhost with grant option;
ERROR 42000: Access denied for user 'mysqltest_1'@'localhost' to database 'my_%'
show grants for mysqltest_1@localhost;
Grants for mysqltest_1@localhost
GRANT USAGE ON *.* TO 'mysqltest_1'@'localhost'
GRANT ALL PRIVILEGES ON `my\_%`.* TO 'mysqltest_1'@'localhost' WITH GRANT OPTION
show grants for mysqltest_2@localhost;
Grants for mysqltest_2@localhost
GRANT USAGE ON *.* TO 'mysqltest_2'@'localhost'
GRANT ALL PRIVILEGES ON `my\_1`.* TO 'mysqltest_2'@'localhost' WITH GRANT OPTION
show grants for mysqltest_3@localhost;
ERROR 42000: There is no such grant defined for user 'mysqltest_3' on host 'localhost'
delete from mysql.user where user like 'mysqltest\_%';
delete from mysql.db where user like 'mysqltest\_%';
flush privileges;
create database mysqltest;
grant INSERT, SELECT on mysqltest.* to mysqltest_1@localhost;
flush privileges;
use mysqltest;
create table t1 (id int primary key, data varchar(255));
show grants for current_user();
Grants for mysqltest_1@localhost
GRANT USAGE ON *.* TO 'mysqltest_1'@'localhost'
GRANT SELECT, INSERT ON `mysqltest`.* TO 'mysqltest_1'@'localhost'
use mysqltest;
insert into t1 values (1, 'I can''t change it!');
update t1 set data='I can change it!' where id = 1;
ERROR 42000: Access denied for user 'mysqltest_1'@'localhost' to database 'mysqltest'
insert into t1 values (1, 'XXX') on duplicate key update data= 'I can change it!';
ERROR 42000: Access denied for user 'mysqltest_1'@'localhost' to database 'mysqltest'
select * from t1;
id	data
1	I can't change it!
drop table t1;
drop database mysqltest;
use test;
delete from mysql.user where user like 'mysqltest\_%';
delete from mysql.db where user like 'mysqltest\_%';
flush privileges;