SHOW GRANTS FOR root@invalid_host;
ERROR 42000: There is no such grant defined for user 'root' on host 'invalid_host'
create user test;
create user foo;
create role foo;
grant foo to test;
connect  conn_1, localhost, test,,;
set role foo;
show grants for test;
Grants for test@%
GRANT foo TO 'test'@'%'
GRANT USAGE ON *.* TO 'test'@'%'
show grants for foo;
Grants for foo
GRANT USAGE ON *.* TO 'foo'
show grants for foo@'%';
ERROR 42000: Access denied for user 'test'@'%' to database 'mysql'
connection default;
disconnect conn_1;
drop user test, foo;
drop role foo;
CREATE TABLE t1 (a INT);
LOCK TABLE t1 WRITE;
REVOKE EXECUTE ON PROCEDURE sp FROM u;
ERROR HY000: Table 'user' was not locked with LOCK TABLES
REVOKE PROCESS ON *.* FROM u;
ERROR HY000: Table 'user' was not locked with LOCK TABLES
DROP TABLE t1;
create database mysqltest1;
use mysqltest1;
create table t1(id int);
insert t1 values(2);
create user u1@localhost;
grant select on mysqltest1.t1 to u1@localhost;
grant update on mysqltest1.* to u1@localhost;
connect u1, localhost, u1;
update mysqltest1.t1 set id=1 where id=2;
connection default;
disconnect u1;
drop user u1@localhost;
drop database mysqltest1;
CREATE ROLE test_role;
CREATE USER test_user;
GRANT test_role TO test_user;
SET DEFAULT ROLE test_role FOR test_user;
SHOW GRANTS FOR test_user;
Grants for test_user@%
GRANT test_role TO 'test_user'@'%'
GRANT USAGE ON *.* TO 'test_user'@'%'
SET DEFAULT ROLE test_role FOR 'test_user'@'%'
SET DEFAULT ROLE NONE for test_user;
SHOW GRANTS FOR test_user;
Grants for test_user@%
GRANT test_role TO 'test_user'@'%'
GRANT USAGE ON *.* TO 'test_user'@'%'
SET ROLE test_role;
SET DEFAULT ROLE test_role;
SHOW GRANTS;
Grants for root@localhost
GRANT test_role TO 'root'@'localhost' WITH ADMIN OPTION
GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
GRANT PROXY ON ''@'%' TO 'root'@'localhost' WITH GRANT OPTION
GRANT USAGE ON *.* TO 'test_role'
SET DEFAULT ROLE test_role FOR 'root'@'localhost'
SET DEFAULT ROLE NONE;
SHOW GRANTS;
Grants for root@localhost
GRANT test_role TO 'root'@'localhost' WITH ADMIN OPTION
GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
GRANT PROXY ON ''@'%' TO 'root'@'localhost' WITH GRANT OPTION
GRANT USAGE ON *.* TO 'test_role'
DROP USER test_user;
DROP ROLE test_role;