connect con1,localhost,root,,;
connect con2,localhost,root,,;
connect con3,localhost,root,,;
create table t1(a int not null primary key, b int, c int,d CHAR(100)) engine=innodb;
create procedure innodb_insert_proc (repeat_count int)
begin
declare current_num int;
set current_num = 0;
while current_num < repeat_count do
insert into t1 values(current_num, RAND(), RAND(), substring(MD5(RAND()), -64));
set current_num = current_num + 1;
end while;
end//
commit;
set autocommit=0;
call innodb_insert_proc(20000);
commit;
set autocommit=1;
connection con1;
delete from t1 where a between 1000 and 1300;
connection con2;
update t1 set b=b+1 where a between 2000 and 2600;
connection con3;
insert into t1 select a+30000,b,c,d from t1 where a between 3000 and 4000;
connection default;
delete from t1 where a between 6000 and 7000;
connection con1;
connection con2;
connection con3;
connection default;
disconnect con1;
disconnect con2;
disconnect con3;
drop procedure innodb_insert_proc;
drop table t1;