Sql /李> [产品].[dbo].[CurrentOnHand] 存储VARCHAR（4） 我不相信NCHAR是解决方案，而不是与其他一些变化巧合。我会通过使用探查器查看在每种情况下传递的不同查询来进行测试，然后查看每个查询的查询计划。我也不相信NCHAR

/李>

[产品].[dbo].[CurrentOnHand]

• 存储VARCHAR（4）

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我不相信NCHAR是解决方案，而不是与其他一些变化巧合。我会通过使用探查器查看在每种情况下传递的不同查询来进行测试，然后查看每个查询的查询计划。我也不相信NCHAR是真正的解决方案，但实际上除了变量的数据类型之外，我没有做任何其他更改。我将研究如何使用探查器，看看这是否对某些内容有帮助。表[LP].[dbo].[scan\u file]aa中的scan\u store字段的类型是什么。这是所有其他类型都应该是的。此外，对于测试，请使用3个字符的字符变量，如“333”而不是“1”或“12”。如果行为发生变化，则需要将每个比较转换为正确的字符串填充类型。换句话说，“12”和“1”不是“1”。这就是为什么我很少使用char和nchar。它经常让你感到沮丧。另外，NChar实际上是2个字节，在进行比较时会导致其他数学问题。SSRS中的类型定义在rs中的定义方式可能会影响问题的行为。我强烈建议您将参数设置为存储的proc字符串，然后强制sql代码强制转换为NChar或Char，以便外部用户始终传递字符串类型。字符串类型定义得很好。LP.dbo.scan_文件中的scan_存储的类型是CHAR（3）。所有的商店号码都是3位数，所以我一直使用333、123等等。

ALTER PROC [dbo].[Inventory_pr_rpt_Scanfile_InvalidColorSize]

(
    @STORE CHAR(3)
)
AS


--set statistics io on 


/** TEST **/

    --DECLARE   @STORE CHAR(3)
    --SET       @STORE = '180'


/** Drop existing temp table **/ 

    IF OBJECT_ID('tempdb..#TEMP_ScanBadData') IS NOT NULL
    DROP TABLE #TEMP_ScanBadData

    IF OBJECT_ID('tempdb..#TEMP_ScanDiscrepancy') IS NOT NULL
    DROP TABLE #TEMP_ScanDiscrepancy

    IF OBJECT_ID('tempdb..#TEMP_ScanFinalReport') IS NOT NULL
    DROP TABLE #TEMP_ScanFinalReport    


    CREATE TABLE #TEMP_ScanBadData (scan_store char(3)
                                      ,scan_sku char(45)
                                      ,scan_qty int
                                      ,errormessage varchar(255))

    CREATE TABLE #TEMP_ScanFinalReport(scan_store char(3)
                                      ,scan_sku char(45)
                                      ,scan_qty int
                                      ,storeOH_qty int
                                      ,errormessage varchar(255))   

    CREATE TABLE #TEMP_ScanDiscrepancy(scan_store char(3)
                                      ,scan_sku char(45)
                                      ,scan_qty int
                                      ,storeOH_qty int
                                      ,errormessage varchar(255))                             

/** Does SKU exist in our system? (Valid color/size/style check) **/
INSERT INTO #TEMP_ScanBadData (scan_store
                                      ,scan_sku
                                      ,scan_qty
                                      ,errormessage)
    SELECT scan_store
        ,scan_sku
        ,scan_qty
        ,'SKU does not exist.' as errormessage           
    FROM [LP].[dbo].[scan_file]
    WHERE scan_sku NOT IN (SELECT ItemID
                           FROM [Product].[dbo].[MasterSKU])
    AND scan_store = @STORE



/** Does scanned SKU exist in store on hand? **/
    INSERT INTO #TEMP_ScanDiscrepancy (scan_store
                                      ,scan_sku
                                      ,scan_qty
                                      ,storeOH_qty
                                      ,errormessage)    
    SELECT aa.scan_store 
          ,aa.scan_sku
          ,aa.scan_qty
          ,'' as storeOH_qty
          ,'Scanned SKU missing in store OH.' as errormessage
    FROM [LP].[dbo].[scan_file] aa
    FULL OUTER JOIN [Product].[dbo].[CurrentOnHand] bb
            ON aa.scan_sku = bb.ItemID
            and aa.scan_store = bb.Store 
    WHERE bb.ItemID IS NULL
    AND aa.scan_store = @STORE
    and bb.Store = @STORE


/** Were any store OH SKU's missed in scan? **/
    INSERT INTO #TEMP_ScanDiscrepancy (scan_store
                                      ,scan_sku
                                      ,scan_qty
                                      ,storeOH_qty
                                      ,errormessage)    
    SELECT aa.Store   as 'scan_store'
          ,aa.ItemId  as 'scan_sku'
          ,aa.OnHandU as 'scan_qty'
          ,'' as storeOH_qty
          ,'SKU was not scanned.' as errormessage
    FROM [Product].[dbo].[CurrentOnHand] aa
    LEFT JOIN [LP].[dbo].[scan_file] bb
            ON aa.ItemID = bb.scan_sku
            and aa.Store = bb.scan_store 
    WHERE bb.scan_sku IS NULL
    AND aa.Store = @STORE
    and bb.scan_store = @STORE

/** What are the qty differences between scanned and OH? **/
    INSERT INTO #TEMP_ScanDiscrepancy (scan_store
                                      ,scan_sku
                                      ,scan_qty
                                      ,storeOH_qty
                                      ,errormessage)    
    SELECT aa.scan_store
        ,aa.scan_sku
        ,aa.scan_qty
        ,bb.OnHandU as 'storeOH_qty'
        ,'QTY does not match between scan and store OH.' as errormessage
    FROM [LP].[dbo].[scan_file] aa
    JOIN [Product].[dbo].[CurrentOnHand] bb
        ON bb.ItemId = aa.scan_sku
        AND aa.scan_store = bb.Store        
    WHERE bb.Store = @STORE
    AND bb.OnHandU <> aa.scan_qty   
    AND aa.scan_store = @STORE


      INSERT INTO #TEMP_ScanFinalReport (scan_store
      ,scan_sku
      ,scan_qty
      ,storeOH_qty
      ,errormessage)    
      SELECT scan_store 
          ,scan_sku 
          ,scan_qty 
          ,storeOH_qty 
          ,errormessage 
      FROM #TEMP_ScanDiscrepancy    

    INSERT INTO #TEMP_ScanFinalReport (scan_store
      ,scan_sku
      ,scan_qty
      ,storeOH_qty
      ,errormessage)    
      SELECT scan_store 
          ,scan_sku 
          ,scan_qty 
          ,'' as storeOH_qty 
          ,errormessage 
      FROM #TEMP_ScanBadData    

      SELECT *
      FROM #TEMP_ScanFinalReport