1 echo Create table t1(f1 date, f2 date);
2 Create table t1(f1 date, f2 date);
3 insert into t1 values('2001-05-01', '2001-05-01');
4 insert into t1 values('2001-06-01', '2001-06-01');
5 insert into t1 values('2001-07-01', '2002-07-01');
6 insert into t1 values('2001-08-01', '2002-08-01');
7 insert into t1 values('2001-09-01', '2002-09-01');
10 echo select * from t1 where date_add(f1 interval 5 month) < '2001-12-01';
11 select * from t1 where date_add(f1 interval 5 month) < '2001-12-01';
12 echo select * from t1 where date_add(f1 interval 6 month) = '2002-01-01';
13 select * from t1 where date_add(f1 interval 6 month) = '2002-01-01';
14 echo select * from t1 where date_add(f1 interval 18 month)>= '2003-01-01';
15 select * from t1 where date_add(f1 interval 18 month)>= '2003-01-01';