Filter only get one condition - sql

Question

I have a validation in WHERE clause like:
...
AND (#BDOnly = 0
OR [DT].[Abbreviation] = #IsBDChecked)
AND (#CDOnly = 0
OR [DT].[Abbreviation] = #IsCDChecked)
AND (#PPOOnly = 0
OR [DT].[Abbreviation] = #IsPPOChecked)
AND (#FBOMOnly = 0
OR [DT].[Abbreviation] = #IsFBOMChecked)
AND (#APOnly = 0
OR [DT].[Abbreviation] = #IsAPChecked)
AND (#COOnly = 0
OR [DT].[Abbreviation] = #IsCOChecked)
So each AND clause check if boolean is bit value is 0 or 1, if it's 0 just do any but if it's 1 it do a filter. My problem is
if I'm sending two with value 1, I mean
#BDOnly = 1 and #CDOnly = 1 it only filter one of them instead get two filters I mean:
[DT].[Abbreviation] = #IsBDChecked
and
[DT].[Abbreviation] = #IsCDChecked
What am I doing wrong? Regards

Answer 1

I'm going to take a guess here because there's not enough data. If you want to return a row where Abbreviation matched #IsBDChecked only when #BDOnly is set, and also another row where Abbreviation matches #IsCDChecked when #CDOnly is set, try this:
(#BDOnly = 1
AND [DT].[Abbreviation] = #IsBDChecked)
OR (#CDOnly = 1
AND [DT].[Abbreviation] = #IsCDChecked)
OR (#PPOOnly = 1
AND [DT].[Abbreviation] = #IsPPOChecked)
OR (#FBOMOnly = 1
AND [DT].[Abbreviation] = #IsFBOMChecked)
OR (#APOnly = 1
AND [DT].[Abbreviation] = #IsAPChecked)
OR (#COOnly = 1
AND [DT].[Abbreviation] = #IsCOChecked)
Small representative case:
DECLARE #ADOnly BIT = 0
, #BDOnly BIT = 1
, #CDOnly BIT = 1
, #IsADChecked NVARCHAR(100) = 'A'
, #IsCDChecked NVARCHAR(100) = 'C'
, #IsBDChecked NVARCHAR(100) = 'B'
;WITH myTable AS
(
SELECT * FROM (VALUES ('A'), ('B'), ('C')) X(Abbreviation)
)
SELECT *
FROM myTable
WHERE (#ADOnly = 1 AND Abbreviation = #IsADChecked)
OR (#BDOnly = 1 AND Abbreviation = #IsBDChecked)
OR (#CDOnly = 1 AND Abbreviation = #IsCDChecked)
Yields:
Abbreviation
------------
B
C