使用存儲過程更新表信息

Question

我有一個數據庫，其中包含從表“tbl_info”中提取的資產列表及其信息，並且解決方案在 sql 中檢出，但是在提交后它不會更新表。 我不知道我錯在哪里。 我對存儲過程和體面的 sql 相當陌生。

這是我的代碼。

CREATE PROCEDURE [update_TBL_INFO_4]
(@ASSET_NUMBER  [nvarchar],
 @PORT_NUMBER   [nvarchar],
 @MACHINE_NAME  [nvarchar],
 @TYPE  [nvarchar],
 @BRANCH    [nvarchar],
 @BUILDING_NUMBER   [nvarchar],
 @FLOOR     [nvarchar],
 @ROOM_NUMBER   [nvarchar],
 @TELEPHONE_NUMBER  [nvarchar],
 @USERS     [nvarchar],
 @SERIAL    [nvarchar])

AS 
BEGIN
UPDATE [datasystems].[dbo].[TBL_INFO] 

SET  [ASSET_NUMBER]  = @ASSET_NUMBER,
 [PORT_NUMBER]   = @PORT_NUMBER,
 [MACHINE_NAME]  = @MACHINE_NAME,
 [TYPE]  = @TYPE,
 [BRANCH]    = @BRANCH,
 [BUILDING_NUMBER]   = @BUILDING_NUMBER,
 [FLOOR]     = @FLOOR,
 [ROOM_NUMBER]   = @ROOM_NUMBER,
 [TELEPHONE_NUMBER]  = @TELEPHONE_NUMBER,
 [USERS]     = @USERS,
 [SERIAL]    = @SERIAL 

WHERE 
( [ASSET_NUMBER]     = @ASSET_NUMBER AND
 [PORT_NUMBER]   = @PORT_NUMBER AND
 [MACHINE_NAME]  = @MACHINE_NAME AND
 [TYPE]  = @TYPE AND
 [BRANCH]    = @BRANCH AND
 [BUILDING_NUMBER]   = @BUILDING_NUMBER AND
 [FLOOR]     = @FLOOR AND
 [ROOM_NUMBER]   = @ROOM_NUMBER AND
 [TELEPHONE_NUMBER]  = @TELEPHONE_NUMBER AND
 [USERS]     = @USERS AND
 [SERIAL]    = @SERIAL)
END
GO

Answer 1

由於您的WHERE子句檢查所有參數，如果它們中的任何一個不同（即，當您傳遞更新的值時）， WHERE將不會找到任何匹配的記錄。

如果您定義了主鍵，請在WHERE子句中使用它並更新其余部分。 否則，您可能還需要傳入舊值以找到合適的匹配項。

更新：

主鍵為ASSET_NUMBER ，您需要更新不是主鍵的字段，並在WHERE子句中單獨使用主鍵，如下所示：

UPDATE 
    [datasystems].[dbo].[TBL_INFO] 
SET  
    [PORT_NUMBER] = @PORT_NUMBER,
    [MACHINE_NAME] = @MACHINE_NAME,
    [TYPE] = @TYPE,
    [BRANCH] = @BRANCH,
    [BUILDING_NUMBER] = @BUILDING_NUMBER,
    [FLOOR] = @FLOOR,
    [ROOM_NUMBER] = @ROOM_NUMBER,
    [TELEPHONE_NUMBER] = @TELEPHONE_NUMBER,
    [USERS] = @USERS,
    [SERIAL] = @SERIAL 
WHERE 
    [ASSET_NUMBER] = @ASSET_NUMBER