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create procedure populate_tables()
begin
declare n int default 20;
declare inner_loop int default 100;
create temporary table t5(c1 int not null,
c2 int not null,
c3 char(255) not null,
c4 text(6000) not null,
c5 blob(6000) not null,
c6 varchar(2000) not null,
c7 varchar(2000) not null,
c8 datetime,
c9 decimal(6,3),
primary key (c1),
index (c3,c4(50),c5(50)),
index (c2))
engine=innodb;
create temporary table t6 ( a int ) engine = innodb;
insert into t6 values (50),(100),(150),(190);
while (n > 0) do
start transaction;
insert ignore into t5 values(n,n,repeat(concat(' tc3_',n),30),
repeat(concat(' tc4_',n),800),repeat(concat(' tc_',n),800),
repeat(concat(' tc6_',n),800),repeat(concat(' tc7_',n),800),
now(),(100.55+n));
if (n > 10) then
commit;
else
delete from t5 where c1 > 10 ;
rollback;
start transaction;
update t5 set c1 = c1 + 1000 where c1 > 10;
rollback;
end if;
start transaction;
insert ignore into t5 values(n+inner_loop,n+inner_loop,repeat(concat(' tc3_',n+inner_loop),30),
repeat(concat(' tc4_',n+inner_loop),800),repeat(concat(' tc_',n+inner_loop),800),
repeat(concat(' tc6_',n+inner_loop),245),repeat(concat(' tc7_',n+inner_loop),245),
now(),(100.55+n+inner_loop));
delete from t5 where c1 between 100 and 110;
update t5 set c1 = c1+1 where c1>110;
savepoint a;
insert ignore into t5 values(300+n+inner_loop,n+inner_loop,repeat(concat(' tc3_',n+inner_loop),30),
repeat(concat(' tc4_',n+inner_loop),800),repeat(concat(' tc_',n+inner_loop),800),
repeat(concat(' tc6_',n+inner_loop),245),repeat(concat(' tc7_',n+inner_loop),245),
now(),(100.55+n+inner_loop));
savepoint b;
insert into t5 values(400+n+inner_loop,n+inner_loop,repeat(concat(' tc3_',n+inner_loop),30),
repeat(concat(' tc4_',n+inner_loop),800),repeat(concat(' tc_',n+inner_loop),800),
repeat(concat(' tc6_',n+inner_loop),245),repeat(concat(' tc7_',n+inner_loop),245),
now(),(100.55+n+inner_loop));
savepoint c;
rollback to b;
rollback to a;
commit;
commit;
rollback;
set n = n - 1;
end while;
end|
connect con1,localhost,root,,;
call populate_tables();;
connect con2,localhost,root,,;
call populate_tables();;
connection con1;
select c1 from t5;
c1
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connection con2;
select c1 from t5;
c1
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connection con1;
set autocommit = 0;
insert into t5 values (20,1,'a','a','a','a','a',now(),100.55);
ERROR 23000: Duplicate entry '20' for key 'PRIMARY'
insert ignore into t5 values (20,1,'a','a','a','a','a',now(),100.55);
Warnings:
Warning 1062 Duplicate entry '20' for key 'PRIMARY'
insert into t5 values (1,1,'a','a','a','a','a',now(),100.55),
(20,1,'a','a','a','a','a',now(),100.55);
ERROR 23000: Duplicate entry '20' for key 'PRIMARY'
set autocommit = 1;
select c1,c2 from t5 where c1 in (20,1);
c1 c2
20 20
replace into t5 values (20,1,'a','a','a','a','a',now(),100.55);
select c1,c2,c3,c4,c5,c6,c7,c9 from t5 where c1 = 20;
c1 c2 c3 c4 c5 c6 c7 c9
20 1 a a a a a 100.550
update ignore t5 set c1 = 20 where c1 = 140 ;
select count(*) from t5 where c1 = 140;
count(*)
1
select * into outfile "VARDIR/tmp/t5.outfile" from t5;
create temporary table temp_1 engine = innodb as select * from t5 where 1=2;
select count(*) from temp_1;
count(*)
0
load data infile 'VARDIR/tmp/t5.outfile' into table temp_1;
select count(*) from temp_1;
count(*)
20
alter table temp_1 add column c10 int default 99 ,
add column c11 varchar(100) default 'test';
alter table temp_1 add primary key (c1);
insert into temp_1 (c1,c2,c3,c4,c5,c6,c7,c8,c9) values (-1,-1,'a','a','a','a','a',now(),100.55);
select c1,c2,c3,c4,c5,c6,c7,c9,c10,c11 from temp_1 where c1 < 0;
c1 c2 c3 c4 c5 c6 c7 c9 c10 c11
-1 -1 a a a a a 100.550 99 test
select count(*) from temp_1 where c10 = 99 and c11 like 'test';
count(*)
21
insert into temp_1 (c1,c2,c3,c4,c5,c6,c7,c8,c9) values (-1,-1,'a','a','a','a','a',now(),100.55)
on duplicate key update c1=-2,c2=-2;
select c1,c2,c3,c4,c5,c6,c7,c9,c10,c11 from temp_1 where c1 < 0;
c1 c2 c3 c4 c5 c6 c7 c9 c10 c11
-2 -2 a a a a a 100.550 99 test
disconnect con1;
disconnect con2;
connection default;
drop procedure populate_tables;
create temporary table prep_1(c1 int not null,
c2 int not null,
c3 char(255) not null,
c4 text(6000) not null,
c5 blob(6000) not null,
c6 varchar(2000) not null,
c7 varchar(2000) not null,
c8 datetime,
c9 decimal(6,3),
index (c3,c4(50),c5(50)),
index (c2))
engine=innodb;
PREPARE stm FROM "insert into prep_1 values(?,?,repeat(concat(' tc3_',?),30),repeat(concat(' tc4_',?),800),repeat(concat(' tc_',?),800),repeat(concat(' tc6_',?),245),repeat(concat(' tc7_',?),245),now(),(100.55+?))";
set @var = 5;
set @var_static = 5;
EXECUTE stm USING @var,@var,@var,@var,@var,@var,@var,@var;
EXECUTE stm USING @var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static;
set @var = @var - 1;
EXECUTE stm USING @var,@var,@var,@var,@var,@var,@var,@var;
EXECUTE stm USING @var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static;
set @var = @var - 1;
EXECUTE stm USING @var,@var,@var,@var,@var,@var,@var,@var;
EXECUTE stm USING @var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static;
set @var = @var - 1;
EXECUTE stm USING @var,@var,@var,@var,@var,@var,@var,@var;
EXECUTE stm USING @var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static;
set @var = @var - 1;
EXECUTE stm USING @var,@var,@var,@var,@var,@var,@var,@var;
EXECUTE stm USING @var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static,@var_static;
set @var = @var - 1;
select c1,left(c3,15) from prep_1 order by c1 ;
c1 left(c3,15)
1 tc3_1 tc3_1 tc
2 tc3_2 tc3_2 tc
3 tc3_3 tc3_3 tc
4 tc3_4 tc3_4 tc
5 tc3_5 tc3_5 tc
5 tc3_5 tc3_5 tc
5 tc3_5 tc3_5 tc
5 tc3_5 tc3_5 tc
5 tc3_5 tc3_5 tc
5 tc3_5 tc3_5 tc
select count(*) from prep_1;
count(*)
10
PREPARE stm_1 FROM "UPDATE prep_1 SET c1 = c1 + 1";
EXECUTE stm_1;
EXECUTE stm_1;
select c1,left(c3,15) from prep_1 order by c1 ;
c1 left(c3,15)
3 tc3_1 tc3_1 tc
4 tc3_2 tc3_2 tc
5 tc3_3 tc3_3 tc
6 tc3_4 tc3_4 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
select count(*) from prep_1;
count(*)
10
PREPARE stm_2 FROM "DELETE FROM prep_1 ORDER BY c1 LIMIT 1";
EXECUTE stm_2;
EXECUTE stm_2;
select c1,left(c3,15) from prep_1 order by c1 ;
c1 left(c3,15)
5 tc3_3 tc3_3 tc
6 tc3_4 tc3_4 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
7 tc3_5 tc3_5 tc
select count(*) from prep_1;
count(*)
8
drop prepare stm;
drop prepare stm_1;
drop prepare stm_2;
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