Question

i spent around 4 hours on this but i couldnt find answer, i want the result like

Rejects

somefilename1.txt – Rejected (and if no file then No from else expression(No – Invalid) – Query 1)
somefilename2.txt – Previous (and if no file then No from else expression(No – Valid) -Query 2)

I dont understand what do i do, do i use union all or case expression. plz help me with this.

QUERY1:

if exists (select NULL from table1 where Column1 = 'File1')
    select distinct Column1 +'-'+ 'Rejected' as 'Rejects' from table1
    where Column1 = 'File1'
else 
    select 'No' as 'Invalid'

QUERY2:

if exists (select NULL from table1 where Column1 = 'File2')
    select distinct Column1 +'-'+ 'Previous' as 'Rejects' from table1
    where column1 = 'File2'
else 
    select 'No' as 'valid'

Thanks

Answer 1

Base on comments, see if this returns what you’re looking for.

If there are no records in the table the result is No Input File

When records are present, each row is evaluated with the CASE statement.

--drop table table1

create table table1
(SubjectArea varchar(255)
, SrcFileName varchar(255))

insert into table1
select 'UaqaFacetsPvs','somefilename1.txt'
union select 'UaqaFacetsRjct','somefilename2.txt'
union select null,null
union select null,'somefilename2.txt'

IF EXISTS(SELECT NULL FROM table1 WHERE SubjectArea in ('UaqaFacetsRjct','UaqaFacetsPvs'))
    SELECT DISTINCT SrcFileName
     + ' - ' + 
     CASE SubjectArea 
        WHEN 'UaqaFacetsPvs' THEN 'FacetsPvsFile'
        WHEN 'UaqaFacetsRjct' THEN 'FacetsRjctFile'
        ELSE ''
      END AS Result
    FROM table1
    WHERE SubjectArea in ('UaqaFacetsRjct','UaqaFacetsPvs')
ELSE SELECT 'No input file' AS Result

This IF returns this:

Result
---------------------------------
somefilename1.txt - FacetsPvsFile
somefilename2.txt - FacetsRjctFile