SELECT
	T1.[ItemCode]
       ,T1.[U_Invoice] AS 'מס חשבון ספק'
       ,T0.[DocDate] AS 'תאריך מסמך'
       ,T0.[DocNum] AS 'מספר מסמך'
       ,T1.[Quantity] AS 'כמות'
FROM PDN1 T1
INNER JOIN OPDN T0 ON T1.[DocEntry] = T0.[DocEntry]
WHERE 
	(
		([%0] <> '' AND [%1] <> '')
		AND 
		(
			T1.[ItemCode] = (N'[%0]') AND T1.[U_Invoice] = (N'[%1]')
		)
	)
	OR
	(
		(
			([%0] IS NULL AND [%1] <> '')
			OR
			([%0] <> '' AND [%1] IS NULL)
		)
		AND 
		(
			T1.[ItemCode] = (N'[%0]')
			OR T1.[U_Invoice] = (N'[%1]')
		)
	)