Question

我正在尝试使用MERGE语句更新Sql Server 2012表中的记录。我有我的目标表和我的源登台表。当ID字段匹配时，我想用来自源的匹配行替换整行，如果不匹配，则将该行作为新行添加到表中。我不知道在更新集（？）之后要写什么来实现这一点。这是我的代码：

    USE DataCompany
MERGE INTO MasterAddress ma
   USING MasterAddressStaging ms
      ON MasterAddress.ID = MasterAddressStaging.ID
WHEN MATCHED THEN
   UPDATE SET (?)
WHEN NOT MATCHED THEN 
INSERT (ID
        ,CompanyName
        ,CompanyNumber
        ,RegAddress_CareOf
        ,RegAddress_POBox
        ,RegAddress_AddressLine1 
        ,RegAddress_AddressLine2 
        ,RegAddress_PostTown 
        ,RegAddress_County 
        ,RegAddress_Country 
        ,RegAddress_PostCode)
VALUES (ms.ID
        ,ms.CompanyName
        ,ms.CompanyNumber
        ,ms.RegAddress_CareOf
        ,ms.RegAddress_POBox
        ,ms.RegAddress_AddressLine1 
        ,ms.RegAddress_AddressLine2 
        ,ms.RegAddress_PostTown 
        ,ms.RegAddress_County 
        ,ms.RegAddress_Country 
        ,ms.RegAddress_PostCode);

感谢您的帮助

Answer 1

  USE DataCompany
  MERGE INTO MasterAddress ma
     USING MasterAddressStaging ms
        ON ma.ID = ms.ID
  WHEN MATCHED THEN
     UPDATE SET ma.CompanyName = ms.CompanyName,
                ma.CompanyNumber = ms.CompanyNumber,
                ma.RegAddress_CareOf =ms.RegAddress_CareOf,
                ma.RegAddress_POBox =ms.RegAddress_POBox,
                ma.RegAddress_AddressLine1 = ms.RegAddress_AddressLine1,
                ma.RegAddress_AddressLine2 = ms.RegAddress_AddressLine2,
                ma.RegAddress_PostTown = ms.RegAddress_PostTown,
                ma.RegAddress_County = ms.RegAddress_County,
                ma.RegAddress_Country = ms.RegAddress_Country,
                ma.RegAddress_PostCode = ms.RegAddress_PostCode
  WHEN NOT MATCHED THEN 
  INSERT (ID
          ,CompanyName
          ,CompanyNumber
          ,RegAddress_CareOf
          ,RegAddress_POBox
          ,RegAddress_AddressLine1 
          ,RegAddress_AddressLine2 
          ,RegAddress_PostTown 
          ,RegAddress_County 
          ,RegAddress_Country 
          ,RegAddress_PostCode)
  VALUES (ms.ID
          ,ms.CompanyName
          ,ms.CompanyNumber
          ,ms.RegAddress_CareOf
          ,ms.RegAddress_POBox
          ,ms.RegAddress_AddressLine1 
          ,ms.RegAddress_AddressLine2 
          ,ms.RegAddress_PostTown 
          ,ms.RegAddress_County 
          ,ms.RegAddress_Country 
          ,ms.RegAddress_PostCode);

参见示例here

如果匹配，则合并语句覆盖整行

1 个答案: