innodb_notembedded.result 421 Bytes
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drop table if exists t1;
create table t1 (col1 integer primary key, col2 integer) engine=innodb;
insert t1 values (1,100);
create function f1 () returns integer begin
declare var1 int;
select col2 into var1 from t1 where col1=1 for update;
return var1;
end|
start transaction;
select f1();
f1()
100
13
update t1 set col2=0 where col1=1;
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select * from t1;
col1	col2
1	100
rollback;
rollback;
drop table t1;
drop function f1;