[英]left outer join in oracle issues
在下面的此查询中,我需要左外部连接才能起作用,以便所得数据集包含与b.terr_num匹配和不匹配的a.terr_num的所有值。
无论如何这是行不通的..请帮助
select b.sales_regn, b.sales_area, b.terr_num, a.terr_num, a.terr_name
from kp_terr_region b
left outer join kap_terr a on a.terr_num = b.terr_num
where a.valid_to > sysdate
and a.ptr_type = 'JPN'
and a.status != 1
and a.valid_to > sysdate
and b.valid_to > sysdate
and a.slr_num is null;
如果我正确理解了您的问题,则说明您在使用where
条件否定outer join
联接。 此举标准的join
,而不是:
select b.sales_regn, b.sales_area, b.terr_num, a.terr_num, a.terr_name
from kp_terr_region b
left outer join kap_terr a on a.terr_num = b.terr_num
and a.valid_to > sysdate
and a.ptr_type = 'JPN'
and a.status != 1
and a.slr_num is null
where b.valid_to > sysdate
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