我有4个不同的选择状态,它们将结果联合起来并像这样显示订单。将联合查询返回到多列
lab_orders MED111
lab_orders MED262383
mg_orders MED262383
mg_orders UNT222
pcg_pharmacogenetics MED262371
pcg_pharmacogenetics UNT248234
well_wellness UST601061
well_wellness UNTAccession
well_wellness UST333
使用此查询。
select 'mg_orders',csv as csv1
from (select csv from csvdata where csv not in(select orderid from mg_orders)) as t1
union
select 'lab_orders',csv as csv2
from (select csv from csvdata where csv not in(select orderid from lab_orders)) as t2
union
select 'pcg_pharmacogenetics',csv as csv3
from (select csv from csvdata where csv not in(select orderid from pcg_pharmacogenetics)) as t3
union
select 'well_wellness',csv as csv4
from (select csv from csvdata where csv not in(select orderid from well_wellness)) as t4
我想要做的是返回结果在单独的列设置,我曾尝试以下,但得到“没有指定的列CSV2”
select csv1, csv2, csv3, csv4
from(
select 'mg_orders',csv as csv1
from (select csv from csvdata where csv not in(select orderid from mg_orders)) as t1
union
select 'lab_orders',csv as csv2
from (select csv from csvdata where csv not in(select orderid from lab_orders)) as t2
union
select 'pcg_pharmacogenetics',csv as csv3
from (select csv from csvdata where csv not in(select orderid from pcg_pharmacogenetics)) as t3
union
select 'well_wellness',csv as csv4
from (select csv from csvdata where csv not in(select orderid from well_wellness)) as t4
) as t
lab_orders mg_orders pcg_pharmacogenetics
MED111 MED262383 MED262371
MED262383 UNT222 UNT248234
你想要的结果集看起来像这不是很清楚,我的查询。 –
我添加了我想要的结果,看起来像在底部。 – user2168066
well_wellness发生了什么事。 –