问在txt文件中使用开关-h-1时出现转换错误

EN

sku                quantity
------------------------------
1234                 1

set nocount on
SELECT 'sku' AS sku, 'quantity' AS sku
UNION
SELECT  CAST(IM_BARCOD.BARCOD AS VARCHAR(32)) as sku, case when 
IM_INV.QTY_AVAIL > 0 then IM_INV.QTY_AVAIL else CAST(0 AS VARCHAR(32)) END as 
quantity
FROM        IM_BARCOD INNER JOIN IM_INV ON IM_INV.ITEM_NO = IM_BARCOD.ITEM_NO 
INNER JOIN 
        IM_PRC ON IM_INV.ITEM_NO = IM_PRC.ITEM_NO INNER JOIN 
        IM_ITEM ON IM_INV.ITEM_NO = IM_ITEM.ITEM_NO
WHERE   (IM_ITEM.TRK_METH = 'N' AND IM_INV.LOC_ID = 'MAIN')
UNION
SELECT  CAST(IM_BARCOD.BARCOD AS VARCHAR(32)) as sku, case when 
IM_INV_CELL.QTY_AVAIL > 0 then IM_INV_CELL.QTY_AVAIL else CAST(0 AS 
VARCHAR(32)) END as quantity
FROM        IM_BARCOD INNER JOIN IM_PRC ON IM_BARCOD.ITEM_NO = IM_PRC.ITEM_NO 
INNER JOIN 
        IM_INV_CELL ON IM_BARCOD.ITEM_NO = IM_INV_CELL.ITEM_NO AND 
IM_INV_CELL.DIM_1_UPR=IM_BARCOD.DIM_1_UPR AND 
IM_INV_CELL.DIM_2_UPR=IM_BARCOD.DIM_2_UPR AND 
IM_INV_CELL.DIM_3_UPR=IM_BARCOD.DIM_3_UPR INNER JOIN 
        IM_ITEM ON IM_BARCOD.ITEM_NO = IM_ITEM.ITEM_NO
WHERE   (IM_ITEM.TRK_METH = 'G' AND IM_INV_CELL.LOC_ID = 'MAIN')