多表关联去重查询
|
1
2
3
|
select
*
from
(
select
a.*, rownum row_num
from
REP_DATA_01 a) x
where
x.row_num
in
(
select
min (rownum)
from
REP_DATA_02 t
group
by
organ_id )
|
单表去重
查询重复数据（这句SQL只能显示非重复数据）
select distinct organ_id from REP_DATA_01 ;