Sql server 在查询中创建其值来自条件的伪列
我正在准备一个查询,我将在Crystal Report中使用它 到目前为止,查询工作正常,但我想再添加一列(虚拟列),该列将根据条件填充, 以下是查询:Sql server 在查询中创建其值来自条件的伪列,sql-server,if-statement,crystal-reports,case,dummy-data,Sql Server,If Statement,Crystal Reports,Case,Dummy Data,我正在准备一个查询,我将在Crystal Report中使用它 到目前为止,查询工作正常,但我想再添加一列(虚拟列),该列将根据条件填充, 以下是查询: select AcctCode , AcctName , Segment_0 + '-'+ Segment_1 as Acctnum , max(refdate) , min(refdate) , sum(debit) as Debit , sum(credit)as Credit
select AcctCode
, AcctName
, Segment_0 + '-'+ Segment_1 as Acctnum
, max(refdate)
, min(refdate)
, sum(debit) as Debit
, sum(credit)as Credit
from oact t0
inner join jdt1 t1 on t0.acctcode = t1.Account
where ( Segment_0 LIKE '01%'
or segment_0 like '02%'
or Segment_0 like '03%'
)
and
( t0.Segment_1 = '01')
and (refdate between '2014-01-31' and '2015-12-27' )
group by AcctCode, AcctName,Segment_0, Segment_1
order by AcctCode
如果段_0以“01”开头,则虚拟列中的值将显示“A” 如果段_0以“02”开头,则虚拟列中的值将显示“L” 如果段_0以“03”开头,则虚拟列中的值将显示“E” 我尝试使用if语句和case,但运气不在我这边:(试试这个:
select AcctCode
, AcctName
, Segment_0 + '-'+ Segment_1 as Acctnum
, max(refdate)
, min(refdate)
, sum(debit) as Debit
, sum(credit)as Credit
, case when Segment_0 LIKE '01%' then 'A'
when segment_0 like '02%' then 'L'
when Segment_0 like '03%' then 'E'
else 'X'
end dummy_column
from oact t0
inner join jdt1 t1 on t0.acctcode = t1.Account
where ( Segment_0 LIKE '01%'
or segment_0 like '02%'
or Segment_0 like '03%'
)
and
( t0.Segment_1 = '01')
and (refdate between '2014-01-31' and '2015-12-27' )
group by AcctCode, AcctName,Segment_0, Segment_1
order by AcctCode