使用存储过程更新表信息

Question

我有一个数据库，其中包含资产列表及其从表“tbl_info”中提取的信息，解决方案在 sql 中签出，但在提交后它不会更新表。我不知道我错在哪里。我对存储过程和 sql 相当陌生。

这是我的代码。

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

由于您的 WHERE 子句检查了 所有 参数，如果它们中的任何一个不同（即，当您传入更新的值时），WHERE 不会执行查找任何匹配的记录。

如果您定义了主键，请在 WHERE 子句中使用它并更新其余部分。否则，您可能还需要传入旧值才能找到合适的匹配项。

更新：

由于主键为ASSET_NUMBER，您需要更新不是主键的字段，并在WHERE 子句中单独使用主键，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