23 lines
526 B
Plaintext
23 lines
526 B
Plaintext
--disable_query_log
|
|
set @@session.explicit_defaults_for_timestamp=off;
|
|
--enable_query_log
|
|
#owner: kaizhan.dkz
|
|
#owner group: sql1
|
|
#tags: update
|
|
#description:
|
|
|
|
--disable_warnings
|
|
drop table if exists t1;
|
|
--enable_warnings
|
|
create table t1(pk int primary key, c1 int);
|
|
insert into t1 values(1,2), (2, 3),(3,4),(4,5);
|
|
select * from t1;
|
|
update t1 set c1=pk ;
|
|
select * from t1;
|
|
update t1 set c1=pk where pk=1 ;
|
|
select * from t1;
|
|
update t1 set c1=pk where pk in (1,2,3,4) ;
|
|
select * from t1;
|
|
update t1 set c1=pk-0 ;
|
|
select * from t1;
|