[英]query condition - Oracle SQL
I wrote code only on transact sql . 我只在Transact sql上编写代码。 I want to write this query in oracle sql. 我想在oracle sql中编写此查询。 But it doesn't work . 但这没用。 the main problem that I can't write my select parameters in the where condition . 主要问题是我无法在where条件中编写选择参数。 How to avoid this problem . 如何避免这个问题。 My query , 我的查询
select t.*,
count(*) over(partition by t.el1_code) cnt ,
count(*) over(partition by t.el1_code, t.el1_valid) cnt1 ,
concat(t.el1_name,t.el1_sname) str,
max(concat(t.el1_name,t.el1_sname)) over(partition by t.el1_code) str_check
from tasuser.coda_element_1 t
)tt
—where tt.cnt>1 and (tt.el1_valid=0 or (tt.el1_valid=1 and cnt=cnt1 and
str<>str_check) )
where not (tt.cnt>1 and (tt.el1_valid=0 or (tt.el1_valid=1 and
cnt=cnt1 and
str<>str_check)))
You need to use derived table/inline view: 您需要使用派生表/内联视图:
SELECT *
FROM (
select t.*,
count(*) over(partition by t.el1_code) cnt ,
count(*) over(partition by t.el1_code, t.el1_valid) cnt1 ,
concat(t.el1_name,t.el1_sname) str,
max(concat(t.el1_name,t.el1_sname)) over(partition by t.el1_code) str_check
from tasuser.coda_element_1 t
) tt
WHERE tt.conditions....
or common table expression
: 或common table expression
:
WITH cte AS (
select t.*,
count(*) over(partition by t.el1_code) cnt ,
count(*) over(partition by t.el1_code, t.el1_valid) cnt1 ,
concat(t.el1_name,t.el1_sname) str,
max(concat(t.el1_name,t.el1_sname)) over(partition by t.el1_code) str_check
from tasuser.coda_element_1 t
)
SELECT *
FROM cte
WHERE conditions ...
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