2006-01-18 13:48:57 +02:00
drop table if exists t1, t2, t3;
2001-09-27 23:05:54 -06:00
create table t1 (kill_id int);
insert into t1 values(connection_id());
select ((@id := kill_id) - kill_id) from t1;
2001-03-13 23:07:12 -07:00
((@id := kill_id) - kill_id)
0
2001-09-27 23:05:54 -06:00
kill @id;
2005-03-18 16:17:10 -08:00
select ((@id := kill_id) - kill_id) from t1;
((@id := kill_id) - kill_id)
0
select @id != connection_id();
@id != connection_id()
1
2001-09-27 23:05:54 -06:00
select 4;
2001-03-13 23:07:12 -07:00
4
4
2001-09-27 23:05:54 -06:00
drop table t1;
2006-03-06 18:26:39 +01:00
kill (select count(*) from mysql.user);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'select count(*) from mysql.user)' at line 1
2006-01-18 13:48:57 +02:00
create table t1 (id int primary key);
create table t2 (id int unsigned not null);
insert into t2 select id from t1;
create table t3 (kill_id int);
insert into t3 values(connection_id());
select id from t1 where id in (select distinct id from t2);
select ((@id := kill_id) - kill_id) from t3;
((@id := kill_id) - kill_id)
0
kill @id;
2006-02-07 13:45:16 +02:00
Got one of the listed errors
2006-01-18 13:48:57 +02:00
drop table t1, t2, t3;
2006-02-03 00:07:36 +03:00
select get_lock("a", 10);
get_lock("a", 10)
1
select get_lock("a", 10);
get_lock("a", 10)
NULL
select 1;
1
1
select RELEASE_LOCK("a");
RELEASE_LOCK("a")
1