grant create view on test.* to test@localhost;
show grants for test@localhost;
Grants for test@localhost
GRANT USAGE ON *.* TO 'test'@'localhost'
GRANT CREATE VIEW ON `test`.* TO 'test'@'localhost'
revoke create view on test.* from test@localhost;
show grants for test@localhost;
Grants for test@localhost
GRANT USAGE ON *.* TO 'test'@'localhost'
drop user test@localhost;
create database mysqltest;
create table mysqltest.t1 (a int, b int);
create table mysqltest.t2 (a int, b int);
grant select on mysqltest.t1 to mysqltest_1@localhost;
grant create view,select on test.* to mysqltest_1@localhost;
create definer=root@localhost view v1 as select * from mysqltest.t1;
ERROR 42000: Access denied; you need the SUPER privilege for this operation
create view v1 as select * from mysqltest.t1;
alter view v1 as select * from mysqltest.t1;
ERROR 42000: DROP command denied to user 'mysqltest_1'@'localhost' for table 'v1'
create or replace view v1 as select * from mysqltest.t1;
ERROR 42000: DROP command denied to user 'mysqltest_1'@'localhost' for table 'v1'
create view mysqltest.v2  as select * from mysqltest.t1;
ERROR 42000: CREATE VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v2'
create view v2 as select * from mysqltest.t2;
ERROR 42000: ANY command denied to user 'mysqltest_1'@'localhost' for table 't2'
show create view v1;
View	Create View
v1	CREATE ALGORITHM=UNDEFINED DEFINER=`mysqltest_1`@`localhost` SQL SECURITY DEFINER VIEW `test`.`v1` AS select `mysqltest`.`t1`.`a` AS `a`,`mysqltest`.`t1`.`b` AS `b` from `mysqltest`.`t1`
grant create view,drop,select on test.* to mysqltest_1@localhost;
use test;
alter view v1 as select * from mysqltest.t1;
create or replace view v1 as select * from mysqltest.t1;
revoke all privileges on mysqltest.t1 from mysqltest_1@localhost;
revoke all privileges on test.* from mysqltest_1@localhost;
drop database mysqltest;
drop view test.v1;
create database mysqltest;
create table mysqltest.t1 (a int, b int);
create view mysqltest.v1 (c,d) as select a+1,b+1 from mysqltest.t1;
grant select (c) on mysqltest.v1 to mysqltest_1@localhost;
select c from mysqltest.v1;
c
select d from mysqltest.v1;
ERROR 42000: SELECT command denied to user 'mysqltest_1'@'localhost' for column 'd' in table 'v1'
revoke all privileges on mysqltest.v1 from mysqltest_1@localhost;
delete from mysql.user where user='mysqltest_1';
drop database mysqltest;
create database mysqltest;
create table mysqltest.t1 (a int, b int);
create algorithm=temptable view mysqltest.v1 (c,d) as select a+1,b+1 from mysqltest.t1;
grant select (c) on mysqltest.v1 to mysqltest_1@localhost;
select c from mysqltest.v1;
c
select d from mysqltest.v1;
ERROR 42000: SELECT command denied to user 'mysqltest_1'@'localhost' for column 'd' in table 'v1'
revoke all privileges on mysqltest.v1 from mysqltest_1@localhost;
delete from mysql.user where user='mysqltest_1';
drop database mysqltest;
create database mysqltest;
create table mysqltest.t1 (a int, b int);
create table mysqltest.t2 (a int, b int);
create view mysqltest.v1 (c,d) as select a+1,b+1 from mysqltest.t1;
create algorithm=temptable view mysqltest.v2 (c,d) as select a+1,b+1 from mysqltest.t1;
create view mysqltest.v3 (c,d) as select a+1,b+1 from mysqltest.t2;
create algorithm=temptable view mysqltest.v4 (c,d) as select a+1,b+1 from mysqltest.t2;
grant select on mysqltest.v1 to mysqltest_1@localhost;
grant select on mysqltest.v2 to mysqltest_1@localhost;
grant select on mysqltest.v3 to mysqltest_1@localhost;
grant select on mysqltest.v4 to mysqltest_1@localhost;
select c from mysqltest.v1;
c
select c from mysqltest.v2;
c
select c from mysqltest.v3;
c
select c from mysqltest.v4;
c
show columns from mysqltest.v1;
Field	Type	Null	Key	Default	Extra
c	bigint(12)	YES		NULL	
d	bigint(12)	YES		NULL	
show columns from mysqltest.v2;
Field	Type	Null	Key	Default	Extra
c	bigint(12)	YES		NULL	
d	bigint(12)	YES		NULL	
explain select c from mysqltest.v1;
ERROR HY000: EXPLAIN/SHOW can not be issued; lacking privileges for underlying table
show create view mysqltest.v1;
ERROR 42000: SHOW VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v1'
explain select c from mysqltest.v2;
ERROR HY000: EXPLAIN/SHOW can not be issued; lacking privileges for underlying table
show create view mysqltest.v2;
ERROR 42000: SHOW VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v2'
explain select c from mysqltest.v3;
ERROR HY000: EXPLAIN/SHOW can not be issued; lacking privileges for underlying table
show create view mysqltest.v3;
ERROR 42000: SHOW VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v3'
explain select c from mysqltest.v4;
ERROR HY000: EXPLAIN/SHOW can not be issued; lacking privileges for underlying table
show create view mysqltest.v4;
ERROR 42000: SHOW VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v4'
grant select on mysqltest.t1 to mysqltest_1@localhost;
explain select c from mysqltest.v1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	0	const row not found
show create view mysqltest.v1;
ERROR 42000: SHOW VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v1'
explain select c from mysqltest.v2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	<derived2>	system	NULL	NULL	NULL	NULL	0	const row not found
2	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
show create view mysqltest.v2;
ERROR 42000: SHOW VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v2'
explain select c from mysqltest.v3;
ERROR HY000: EXPLAIN/SHOW can not be issued; lacking privileges for underlying table
show create view mysqltest.v3;
ERROR 42000: SHOW VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v3'
explain select c from mysqltest.v4;
ERROR HY000: EXPLAIN/SHOW can not be issued; lacking privileges for underlying table
show create view mysqltest.v4;
ERROR 42000: SHOW VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v4'
grant show view on mysqltest.* to mysqltest_1@localhost;
explain select c from mysqltest.v1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	0	const row not found
show create view mysqltest.v1;
View	Create View
v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `mysqltest`.`v1` AS select (`mysqltest`.`t1`.`a` + 1) AS `c`,(`mysqltest`.`t1`.`b` + 1) AS `d` from `mysqltest`.`t1`
explain select c from mysqltest.v2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	<derived2>	system	NULL	NULL	NULL	NULL	0	const row not found
2	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
show create view mysqltest.v2;
View	Create View
v2	CREATE ALGORITHM=TEMPTABLE DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `mysqltest`.`v2` AS select (`mysqltest`.`t1`.`a` + 1) AS `c`,(`mysqltest`.`t1`.`b` + 1) AS `d` from `mysqltest`.`t1`
explain select c from mysqltest.v3;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t2	system	NULL	NULL	NULL	NULL	0	const row not found
show create view mysqltest.v3;
View	Create View
v3	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `mysqltest`.`v3` AS select (`mysqltest`.`t2`.`a` + 1) AS `c`,(`mysqltest`.`t2`.`b` + 1) AS `d` from `mysqltest`.`t2`
explain select c from mysqltest.v4;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	<derived2>	system	NULL	NULL	NULL	NULL	0	const row not found
2	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
show create view mysqltest.v4;
View	Create View
v4	CREATE ALGORITHM=TEMPTABLE DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `mysqltest`.`v4` AS select (`mysqltest`.`t2`.`a` + 1) AS `c`,(`mysqltest`.`t2`.`b` + 1) AS `d` from `mysqltest`.`t2`
revoke all privileges on mysqltest.* from mysqltest_1@localhost;
delete from mysql.user where user='mysqltest_1';
drop database mysqltest;
create database mysqltest;
create table mysqltest.t1 (a int, b int, primary key(a));
insert into mysqltest.t1 values (10,2), (20,3), (30,4), (40,5), (50,10);
create table mysqltest.t2 (x int);
insert into mysqltest.t2 values (3), (4), (5), (6);
create view mysqltest.v1 (a,c) as select a, b+1 from mysqltest.t1;
create view mysqltest.v2 (a,c) as select a, b from mysqltest.t1;
create view mysqltest.v3 (a,c) as select a, b+1 from mysqltest.t1;
grant update (a) on mysqltest.v2 to mysqltest_1@localhost;
grant update on mysqltest.v1 to mysqltest_1@localhost;
grant select on mysqltest.* to mysqltest_1@localhost;
use mysqltest;
update t2,v1 set v1.a=v1.a+v1.c where t2.x=v1.c;
select * from t1;
a	b
13	2
24	3
35	4
46	5
50	10
update v1 set a=a+c;
select * from t1;
a	b
16	2
28	3
40	4
52	5
61	10
update t2,v2 set v2.a=v2.a+v2.c where t2.x=v2.c;
select * from t1;
a	b
16	2
31	3
44	4
57	5
61	10
update v2 set a=a+c;
select * from t1;
a	b
18	2
34	3
48	4
62	5
71	10
update t2,v2 set v2.c=v2.a+v2.c where t2.x=v2.c;
ERROR 42000: UPDATE command denied to user 'mysqltest_1'@'localhost' for column 'c' in table 'v2'
update v2 set c=a+c;
ERROR 42000: UPDATE command denied to user 'mysqltest_1'@'localhost' for column 'c' in table 'v2'
update t2,v3 set v3.a=v3.a+v3.c where t2.x=v3.c;
ERROR 42000: UPDATE command denied to user 'mysqltest_1'@'localhost' for table 'v3'
update v3 set a=a+c;
ERROR 42000: UPDATE command denied to user 'mysqltest_1'@'localhost' for table 'v3'
use test;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;
create database mysqltest;
create table mysqltest.t1 (a int, b int, primary key(a));
insert into mysqltest.t1 values (1,2), (2,3), (3,4), (4,5), (5,10);
create table mysqltest.t2 (x int);
insert into mysqltest.t2 values (3), (4), (5), (6);
create view mysqltest.v1 (a,c) as select a, b+1 from mysqltest.t1;
create view mysqltest.v2 (a,c) as select a, b+1 from mysqltest.t1;
grant delete on mysqltest.v1 to mysqltest_1@localhost;
grant select on mysqltest.* to mysqltest_1@localhost;
use mysqltest;
delete from v1 where c < 4;
select * from t1;
a	b
2	3
3	4
4	5
5	10
delete v1 from t2,v1 where t2.x=v1.c;
select * from t1;
a	b
5	10
delete v2 from t2,v2 where t2.x=v2.c;
ERROR 42000: DELETE command denied to user 'mysqltest_1'@'localhost' for table 'v2'
delete from v2 where c < 4;
ERROR 42000: DELETE command denied to user 'mysqltest_1'@'localhost' for table 'v2'
use test;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;
create database mysqltest;
create table mysqltest.t1 (a int, b int, primary key(a));
insert into mysqltest.t1 values (1,2), (2,3);
create table mysqltest.t2 (x int, y int);
insert into mysqltest.t2 values (3,4);
create view mysqltest.v1 (a,c) as select a, b from mysqltest.t1;
create view mysqltest.v2 (a,c) as select a, b from mysqltest.t1;
grant insert on mysqltest.v1 to mysqltest_1@localhost;
grant select on mysqltest.* to mysqltest_1@localhost;
use mysqltest;
insert into v1 values (5,6);
select * from t1;
a	b
1	2
2	3
5	6
insert into v1 select x,y from t2;
select * from t1;
a	b
1	2
2	3
5	6
3	4
insert into v2 values (5,6);
ERROR 42000: INSERT command denied to user 'mysqltest_1'@'localhost' for table 'v2'
insert into v2 select x,y from t2;
ERROR 42000: INSERT command denied to user 'mysqltest_1'@'localhost' for table 'v2'
use test;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;
create database mysqltest;
create table mysqltest.t1 (a int, b int);
create table mysqltest.t2 (a int, b int);
grant update on mysqltest.t1 to mysqltest_1@localhost;
grant update(b) on mysqltest.t2 to mysqltest_1@localhost;
grant create view,update on test.* to mysqltest_1@localhost;
create view v1 as select * from mysqltest.t1;
create view v2 as select b from mysqltest.t2;
create view mysqltest.v1 as select * from mysqltest.t1;
ERROR 42000: CREATE VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v1'
create view v3 as select a from mysqltest.t2;
ERROR 42000: ANY command denied to user 'mysqltest_1'@'localhost' for column 'a' in table 't2'
create table mysqltest.v3 (b int);
grant create view on mysqltest.v3 to mysqltest_1@localhost;
drop table mysqltest.v3;
create view mysqltest.v3 as select b from mysqltest.t2;
grant create view, update on mysqltest.v3 to mysqltest_1@localhost;
drop view mysqltest.v3;
create view mysqltest.v3 as select b from mysqltest.t2;
grant create view, update, insert on mysqltest.v3 to mysqltest_1@localhost;
drop view mysqltest.v3;
create view mysqltest.v3 as select b from mysqltest.t2;
ERROR 42000: create view command denied to user 'mysqltest_1'@'localhost' for column 'b' in table 'v3'
create table mysqltest.v3 (b int);
grant select(b) on mysqltest.v3 to mysqltest_1@localhost;
drop table mysqltest.v3;
create view mysqltest.v3 as select b from mysqltest.t2;
ERROR 42000: create view command denied to user 'mysqltest_1'@'localhost' for column 'b' in table 'v3'
create view v4 as select b+1 from mysqltest.t2;
ERROR 42000: SELECT command denied to user 'mysqltest_1'@'localhost' for column 'b' in table 't2'
grant create view,update,select on test.* to mysqltest_1@localhost;
create view v4 as select b+1 from mysqltest.t2;
ERROR 42000: SELECT command denied to user 'mysqltest_1'@'localhost' for column 'b' in table 't2'
grant update,select(b) on mysqltest.t2 to mysqltest_1@localhost;
create view v4 as select b+1 from mysqltest.t2;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;
drop view v1,v2,v4;
create database mysqltest;
create table mysqltest.t1 (a int);
grant all privileges on mysqltest.* to mysqltest_1@localhost;
use mysqltest;
create view v1 as select * from t1;
use test;
revoke all privileges on mysqltest.* from mysqltest_1@localhost;
drop database mysqltest;
create database mysqltest;
create table mysqltest.t1 (a int, b int);
grant select on mysqltest.t1 to mysqltest_1@localhost;
grant create view,select on test.* to mysqltest_1@localhost;
create view v1 as select * from mysqltest.t1;
show create view v1;
View	Create View
v1	CREATE ALGORITHM=UNDEFINED DEFINER=`mysqltest_1`@`localhost` SQL SECURITY DEFINER VIEW `test`.`v1` AS select `mysqltest`.`t1`.`a` AS `a`,`mysqltest`.`t1`.`b` AS `b` from `mysqltest`.`t1`
revoke select on mysqltest.t1 from mysqltest_1@localhost;
select * from v1;
ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
grant select on mysqltest.t1 to mysqltest_1@localhost;
select * from v1;
a	b
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop view v1;
drop database mysqltest;
create database mysqltest;
use mysqltest;
create table t1 (a int);
insert into t1 values (1);
create table t2 (s1 int);
drop function if exists f2;
create function f2 () returns int begin declare v int; select s1 from t2
into v; return v; end//
create algorithm=TEMPTABLE view v1 as select f2() from t1;
create algorithm=MERGE view v2 as select f2() from t1;
create algorithm=TEMPTABLE SQL SECURITY INVOKER view v3 as select f2() from t1;
create algorithm=MERGE SQL SECURITY INVOKER view v4 as select f2() from t1;
create SQL SECURITY INVOKER view v5 as select * from v4;
grant select on v1 to mysqltest_1@localhost;
grant select on v2 to mysqltest_1@localhost;
grant select on v3 to mysqltest_1@localhost;
grant select on v4 to mysqltest_1@localhost;
grant select on v5 to mysqltest_1@localhost;
use mysqltest;
select * from v1;
f2()
NULL
Warnings:
Warning	1329	No data - zero rows fetched, selected, or processed
select * from v2;
f2()
NULL
Warnings:
Warning	1329	No data - zero rows fetched, selected, or processed
select * from v3;
ERROR HY000: View 'mysqltest.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
select * from v4;
ERROR HY000: View 'mysqltest.v4' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
select * from v5;
ERROR HY000: View 'mysqltest.v5' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
use test;
drop view v1, v2, v3, v4, v5;
drop function f2;
drop table t1, t2;
use test;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;
create database mysqltest;
use mysqltest;
create table t1 (a int);
insert into t1 values (1);
create table t2 (s1 int);
drop function if exists f2;
create function f2 () returns int begin declare v int; select s1 from t2
into v; return v; end//
grant select on t1 to mysqltest_1@localhost;
grant execute on function f2 to mysqltest_1@localhost;
grant create view on mysqltest.* to mysqltest_1@localhost;
use mysqltest;
create algorithm=TEMPTABLE view v1 as select f2() from t1;
create algorithm=MERGE view v2 as select f2() from t1;
create algorithm=TEMPTABLE SQL SECURITY INVOKER view v3 as select f2() from t1;
create algorithm=MERGE SQL SECURITY INVOKER view v4 as select f2() from t1;
use test;
create view v5 as select * from v1;
revoke execute on function f2 from mysqltest_1@localhost;
select * from v1;
ERROR HY000: View 'mysqltest.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
select * from v2;
ERROR HY000: View 'mysqltest.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
select * from v3;
f2()
NULL
Warnings:
Warning	1329	No data - zero rows fetched, selected, or processed
select * from v4;
f2()
NULL
Warnings:
Warning	1329	No data - zero rows fetched, selected, or processed
select * from v5;
ERROR HY000: View 'mysqltest.v5' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
drop view v1, v2, v3, v4, v5;
drop function f2;
drop table t1, t2;
use test;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;
create database mysqltest;
use mysqltest;
create table t1 (a int);
create table v1 (a int);
insert into t1 values (1);
grant select on t1 to mysqltest_1@localhost;
grant select on v1 to mysqltest_1@localhost;
grant create view on mysqltest.* to mysqltest_1@localhost;
drop table v1;
use mysqltest;
create algorithm=TEMPTABLE view v1 as select *, a as b from t1;
create algorithm=MERGE view v2 as select *, a as b from t1;
create algorithm=TEMPTABLE SQL SECURITY INVOKER view v3 as select *, a as b from t1;
create algorithm=MERGE SQL SECURITY INVOKER view v4 as select *, a as b from t1;
create view v5 as select * from v1;
use test;
revoke select on t1 from mysqltest_1@localhost;
select * from v1;
ERROR HY000: View 'mysqltest.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
select * from v2;
ERROR HY000: View 'mysqltest.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
select * from v3;
a	b
1	1
select * from v4;
a	b
1	1
select * from v5;
ERROR HY000: View 'mysqltest.v5' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
drop table t1;
use test;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;
create database mysqltest;
use mysqltest;
create table t1 (a int);
insert into t1 values (1);
create algorithm=TEMPTABLE view v1 as select *, a as b from t1;
create algorithm=MERGE view v2 as select *, a as b from t1;
create algorithm=TEMPTABLE SQL SECURITY INVOKER view v3 as select *, a as b from t1;
create algorithm=MERGE SQL SECURITY INVOKER view v4 as select *, a as b from t1;
create SQL SECURITY INVOKER view v5 as select * from v4;
grant select on v1 to mysqltest_1@localhost;
grant select on v2 to mysqltest_1@localhost;
grant select on v3 to mysqltest_1@localhost;
grant select on v4 to mysqltest_1@localhost;
grant select on v5 to mysqltest_1@localhost;
use mysqltest;
select * from v1;
a	b
1	1
select * from v2;
a	b
1	1
select * from v3;
ERROR HY000: View 'mysqltest.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
select * from v4;
ERROR HY000: View 'mysqltest.v4' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
select * from v5;
ERROR HY000: View 'mysqltest.v5' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
use test;
drop view v1, v2, v3, v4, v5;
drop table t1;
use test;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
drop database mysqltest;
drop view if exists v1;
create table t1 as select * from mysql.user where user='';
delete from mysql.user where user='';
flush privileges;
grant all on test.* to 'test14256'@'%';
use test;
create view v1 as select 42;
show create view v1;
View	Create View
v1	CREATE ALGORITHM=UNDEFINED DEFINER=`test14256`@`%` SQL SECURITY DEFINER VIEW `v1` AS select 42 AS `42`
select definer into @v1def1 from information_schema.views
where table_schema = 'test' and table_name='v1';
drop view v1;
create definer=`test14256`@`%` view v1 as select 42;
show create view v1;
View	Create View
v1	CREATE ALGORITHM=UNDEFINED DEFINER=`test14256`@`%` SQL SECURITY DEFINER VIEW `v1` AS select 42 AS `42`
select definer into @v1def2 from information_schema.views
where table_schema = 'test' and table_name='v1';
drop view v1;
select @v1def1, @v1def2, @v1def1=@v1def2;
@v1def1	@v1def2	@v1def1=@v1def2
test14256@%	test14256@%	1
drop user test14256;
insert into mysql.user select * from t1;
flush privileges;
drop table t1;
create database mysqltest;
use mysqltest;
CREATE TABLE t1 (i INT);
CREATE VIEW  v1 AS SELECT * FROM t1;
SHOW CREATE VIEW v1;
View	Create View
v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i` from `t1`
GRANT SELECT, LOCK TABLES ON mysqltest.* TO mysqltest_1@localhost;
use mysqltest;
LOCK TABLES v1 READ;
SHOW CREATE TABLE v1;
ERROR 42000: SHOW VIEW command denied to user 'mysqltest_1'@'localhost' for table 'v1'
UNLOCK TABLES;
use test;
use test;
drop user mysqltest_1@localhost;
drop database mysqltest;
create definer=some_user@`` sql security invoker view v1 as select 1;
Warnings:
Note	1449	There is no 'some_user'@'' registered
create definer=some_user@localhost sql security invoker view v2 as select 1;
Warnings:
Note	1449	There is no 'some_user'@'localhost' registered
show create view v1;
View	Create View
v1	CREATE ALGORITHM=UNDEFINED DEFINER=`some_user`@`` SQL SECURITY INVOKER VIEW `v1` AS select 1 AS `1`
show create view v2;
View	Create View
v2	CREATE ALGORITHM=UNDEFINED DEFINER=`some_user`@`localhost` SQL SECURITY INVOKER VIEW `v2` AS select 1 AS `1`
drop view v1;
drop view v2;
CREATE DATABASE mysqltest1;
CREATE USER readonly@localhost;
CREATE TABLE mysqltest1.t1 (x INT);
INSERT INTO mysqltest1.t1 VALUES (1), (2);
CREATE SQL SECURITY INVOKER VIEW mysqltest1.v_t1 AS SELECT * FROM mysqltest1.t1;
CREATE SQL SECURITY DEFINER VIEW mysqltest1.v_ts AS SELECT * FROM mysqltest1.t1;
CREATE SQL SECURITY DEFINER VIEW mysqltest1.v_ti AS SELECT * FROM mysqltest1.t1;
CREATE SQL SECURITY DEFINER VIEW mysqltest1.v_tu AS SELECT * FROM mysqltest1.t1;
CREATE SQL SECURITY DEFINER VIEW mysqltest1.v_tus AS SELECT * FROM mysqltest1.t1;
CREATE SQL SECURITY DEFINER VIEW mysqltest1.v_td AS SELECT * FROM mysqltest1.t1;
CREATE SQL SECURITY DEFINER VIEW mysqltest1.v_tds AS SELECT * FROM mysqltest1.t1;
GRANT SELECT, INSERT, UPDATE, DELETE ON mysqltest1.v_t1 TO readonly;
GRANT SELECT ON mysqltest1.v_ts TO readonly;
GRANT INSERT ON mysqltest1.v_ti TO readonly;
GRANT UPDATE ON mysqltest1.v_tu TO readonly;
GRANT UPDATE,SELECT ON mysqltest1.v_tus TO readonly;
GRANT DELETE ON mysqltest1.v_td TO readonly;
GRANT DELETE,SELECT ON mysqltest1.v_tds TO readonly;
SELECT * FROM mysqltest1.v_t1;
ERROR HY000: View 'mysqltest1.v_t1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
INSERT INTO mysqltest1.v_t1 VALUES(4);
ERROR HY000: View 'mysqltest1.v_t1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
DELETE FROM mysqltest1.v_t1 WHERE x = 1;
ERROR HY000: View 'mysqltest1.v_t1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
UPDATE mysqltest1.v_t1 SET x = 3 WHERE x = 2;
ERROR HY000: View 'mysqltest1.v_t1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
UPDATE mysqltest1.v_t1 SET x = 3;
ERROR HY000: View 'mysqltest1.v_t1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
DELETE FROM mysqltest1.v_t1;
ERROR HY000: View 'mysqltest1.v_t1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
SELECT 1 FROM mysqltest1.v_t1;
ERROR HY000: View 'mysqltest1.v_t1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
SELECT * FROM mysqltest1.t1;
ERROR 42000: SELECT command denied to user 'readonly'@'localhost' for table 't1'
SELECT * FROM mysqltest1.v_ts;
x
1
2
SELECT * FROM mysqltest1.v_ts, mysqltest1.t1 WHERE mysqltest1.t1.x = mysqltest1.v_ts.x;
ERROR 42000: SELECT command denied to user 'readonly'@'localhost' for table 't1'
SELECT * FROM mysqltest1.v_ti;
ERROR 42000: SELECT command denied to user 'readonly'@'localhost' for table 'v_ti'
INSERT INTO mysqltest1.v_ts VALUES (100);
ERROR 42000: INSERT command denied to user 'readonly'@'localhost' for table 'v_ts'
INSERT INTO mysqltest1.v_ti VALUES (100);
UPDATE mysqltest1.v_ts SET x= 200 WHERE x = 100;
ERROR 42000: UPDATE command denied to user 'readonly'@'localhost' for table 'v_ts'
UPDATE mysqltest1.v_ts SET x= 200;
ERROR 42000: UPDATE command denied to user 'readonly'@'localhost' for table 'v_ts'
UPDATE mysqltest1.v_tu SET x= 200 WHERE x = 100;
UPDATE mysqltest1.v_tus SET x= 200 WHERE x = 100;
UPDATE mysqltest1.v_tu SET x= 200;
DELETE FROM mysqltest1.v_ts WHERE x= 200;
ERROR 42000: DELETE command denied to user 'readonly'@'localhost' for table 'v_ts'
DELETE FROM mysqltest1.v_ts;
ERROR 42000: DELETE command denied to user 'readonly'@'localhost' for table 'v_ts'
DELETE FROM mysqltest1.v_td WHERE x= 200;
ERROR 42000: SELECT command denied to user 'readonly'@'localhost' for column 'x' in table 'v_td'
DELETE FROM mysqltest1.v_tds WHERE x= 200;
DELETE FROM mysqltest1.v_td;
DROP VIEW mysqltest1.v_tds;
DROP VIEW mysqltest1.v_td;
DROP VIEW mysqltest1.v_tus;
DROP VIEW mysqltest1.v_tu;
DROP VIEW mysqltest1.v_ti;
DROP VIEW mysqltest1.v_ts;
DROP VIEW mysqltest1.v_t1;
DROP TABLE mysqltest1.t1;
DROP USER readonly@localhost;
DROP DATABASE mysqltest1;
CREATE TABLE t1 (a INT PRIMARY KEY);
INSERT INTO t1 VALUES (1), (2), (3);
CREATE DEFINER = 'no-such-user'@localhost VIEW v AS SELECT a from t1;
Warnings:
Note	1449	There is no 'no-such-user'@'localhost' registered
SHOW CREATE VIEW v;
View	Create View
v	CREATE ALGORITHM=UNDEFINED DEFINER=`no-such-user`@`localhost` SQL SECURITY DEFINER VIEW `v` AS select `t1`.`a` AS `a` from `t1`
Warnings:
Note	1449	There is no 'no-such-user'@'localhost' registered
SELECT * FROM v;
ERROR HY000: There is no 'no-such-user'@'localhost' registered
DROP VIEW v;
DROP TABLE t1;
USE test;
CREATE USER mysqltest_db1@localhost identified by 'PWD';
GRANT ALL ON mysqltest_db1.* TO mysqltest_db1@localhost WITH GRANT OPTION;
CREATE SCHEMA mysqltest_db1 ;
USE mysqltest_db1 ;
CREATE TABLE t1 (f1 INTEGER);
CREATE VIEW view1 AS
SELECT * FROM t1;
SHOW CREATE VIEW view1;
View	Create View
view1	CREATE ALGORITHM=UNDEFINED DEFINER=`mysqltest_db1`@`localhost` SQL SECURITY DEFINER VIEW `view1` AS select `t1`.`f1` AS `f1` from `t1`
CREATE VIEW view2 AS
SELECT * FROM view1;
# Here comes a suspicious warning
SHOW CREATE VIEW view2;
View	Create View
view2	CREATE ALGORITHM=UNDEFINED DEFINER=`mysqltest_db1`@`localhost` SQL SECURITY DEFINER VIEW `view2` AS select `view1`.`f1` AS `f1` from `view1`
# But the view view2 is usable
SELECT * FROM view2;
f1
CREATE VIEW view3 AS
SELECT * FROM view2;
SELECT * from view3;
f1
DROP VIEW mysqltest_db1.view3;
DROP VIEW mysqltest_db1.view2;
DROP VIEW mysqltest_db1.view1;
DROP TABLE mysqltest_db1.t1;
DROP SCHEMA mysqltest_db1;
DROP USER mysqltest_db1@localhost;
CREATE DATABASE test1;
CREATE DATABASE test2;
CREATE TABLE test1.t0 (a VARCHAR(20));
CREATE TABLE test2.t1 (a VARCHAR(20));
CREATE VIEW  test2.t3 AS SELECT * FROM test1.t0;
CREATE OR REPLACE VIEW test.v1 AS 
SELECT ta.a AS col1, tb.a AS col2 FROM test2.t3 ta, test2.t1 tb;
DROP VIEW test.v1;
DROP VIEW test2.t3;
DROP TABLE test2.t1, test1.t0;
DROP DATABASE test2;
DROP DATABASE test1;
DROP VIEW IF EXISTS v1;
DROP VIEW IF EXISTS v2;
DROP VIEW IF EXISTS v3;
DROP FUNCTION IF EXISTS f1;
DROP FUNCTION IF EXISTS f2;
DROP PROCEDURE IF EXISTS p1;
CREATE SQL SECURITY DEFINER VIEW v1 AS SELECT CURRENT_USER() AS cu;
CREATE FUNCTION f1() RETURNS VARCHAR(77) SQL SECURITY INVOKER
RETURN CURRENT_USER();
CREATE SQL SECURITY DEFINER VIEW v2 AS SELECT f1() AS cu;
CREATE PROCEDURE p1(OUT cu VARCHAR(77)) SQL SECURITY INVOKER
SET cu= CURRENT_USER();
CREATE FUNCTION f2() RETURNS VARCHAR(77) SQL SECURITY INVOKER
BEGIN
DECLARE cu VARCHAR(77);
CALL p1(cu);
RETURN cu;
END|
CREATE SQL SECURITY DEFINER VIEW v3 AS SELECT f2() AS cu;
CREATE USER mysqltest_u1@localhost;
GRANT ALL ON test.* TO mysqltest_u1@localhost;

The following tests should all return 1.

SELECT CURRENT_USER() = 'mysqltest_u1@localhost';
CURRENT_USER() = 'mysqltest_u1@localhost'
1
SELECT f1() = 'mysqltest_u1@localhost';
f1() = 'mysqltest_u1@localhost'
1
CALL p1(@cu);
SELECT @cu = 'mysqltest_u1@localhost';
@cu = 'mysqltest_u1@localhost'
1
SELECT f2() = 'mysqltest_u1@localhost';
f2() = 'mysqltest_u1@localhost'
1
SELECT cu = 'root@localhost' FROM v1;
cu = 'root@localhost'
1
SELECT cu = 'root@localhost' FROM v2;
cu = 'root@localhost'
1
SELECT cu = 'root@localhost' FROM v3;
cu = 'root@localhost'
1
DROP VIEW v3;
DROP FUNCTION f2;
DROP PROCEDURE p1;
DROP FUNCTION f1;
DROP VIEW v2;
DROP VIEW v1;
DROP USER mysqltest_u1@localhost;
CREATE DATABASE db17254;
USE db17254;
CREATE TABLE t1 (f1 INT);
INSERT INTO t1 VALUES (10),(20);
CREATE USER def_17254@localhost;
GRANT SELECT ON db17254.* TO def_17254@localhost;
CREATE USER inv_17254@localhost;
GRANT SELECT ON db17254.t1 TO inv_17254@localhost;
GRANT CREATE VIEW ON db17254.* TO def_17254@localhost;
CREATE VIEW v1 AS SELECT * FROM t1;
DROP USER def_17254@localhost;
for a user
SELECT * FROM v1;
ERROR 42000: SELECT command denied to user 'inv_17254'@'localhost' for table 'v1'
for a superuser
SELECT * FROM v1;
ERROR HY000: There is no 'def_17254'@'localhost' registered
DROP USER inv_17254@localhost;
DROP DATABASE db17254;