2
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
5
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
7
create table t2(n int);
8
create table t1(n int not null auto_increment primary key);
9
insert into t1 values (NULL),(NULL);
11
insert into t1 values (4),(NULL);
14
insert into t1 values (NULL),(NULL);
17
insert into t1 values (10),(NULL),(NULL),(NULL),(NULL),(NULL);
18
select * from t1 ORDER BY n;