Сделать фильтр по @start, @end, @fedokrug (хранимка)

CREATE PROCEDURE dbo.Report
    @START DATE,
    @END DATE,
    @okrug INT
AS
  SELECT
  TableLogBuildingInfo.dateChange AS DATE,
  COUNT(TableLogBuildingInfo.nu) AND (TableLogBuildingInfo.dateChange > @datestart)  AND (TableLogBuildingInfo.dateChange < @dateEnd) AND (TableLogBuildingInfo.idDistrict = @okrug) AS CN,
  COUNT(TableLogBuildingInfo.eg) AND (TableLogBuildingInfo.dateChange > @datestart)  AND (TableLogBuildingInfo.dateChange < @dateEnd) AND (TableLogBuildingInfo.idDistrict = @okrug) AS USE,
  COUNT(TableLogBuildingInfo.eg) AND (TableLogBuildingInfo.dateChange > @datestart)  AND (TableLogBuildingInfo.dateChange < @dateEnd) AND (TableLogBuildingInfo.idDistrict = @okrug) AS RF,
  COUNT(TableLogBuildingInfo.nu) AND (TableLogBuildingInfo.dateChange > @datestart)  AND (TableLogBuildingInfo.dateChange < @dateEnd) AND (TableLogBuildingInfo.idDistrict = @okrug) AS RNFI
FROM dbo.TableLogBuildingInfo
WHERE (@datestart IS NULL
OR TableLogBuildingInfo.dateChange >= @datestart)
AND (@dateEnd IS NULL
OR TableLogBuildingInfo.dateChange <= @dateEnd)
AND (@fedokrug IS NULL
OR TableLogBuildingInfo.idDistrict = @okrug)
GROUP BY TableLogBuildingInfo.dateChange
ORDER BY DATE 
 
GO