Question

I am trying to put CASE Statement in Where clause, but I am getting error: Incorrect syntax near ‘>’.

WHERE 
ItemCategoryID=@CategoryID 
AND AuctionStatus=1 
AND SE_UsersMain.isActive=1 
AND AuctionOwner!=@OwnerID
AND    
CASE                    
WHEN @CompareSign=1 THEN  @CurrentAmount>@FilterAmount 
WHEN @CompareSign=2 THEN @CurrentAmount<@FilterAmount 
WHEN @CompareSign=3 THEN @CurrentAmount=@FilterAmount 
END

Answer 1

Try this:

WHERE ItemCategoryID      = @CategoryID
AND AuctionStatus         = 1
AND SE_UsersMain.isActive = 1
AND AuctionOwner!         = @OwnerID
AND
    CASE
      WHEN @CompareSign  = 1 AND @CurrentAmount>@FilterAmount THEN '1'
      WHEN @CompareSign  = 2 AND @CurrentAmount<@FilterAmount THEN '1'
      WHEN @CompareSign  = 3 AND @CurrentAmount=@FilterAmount THEN '1'
      ELSE '0'
    END = '1'