Question

我有两个表，我需要将数据从SRCServiceUsers复制到客户端

每次我运行它都会得到以下结果：

违反PRIMARY KEY约束 'PK_Clients'。无法插入重复对象'dbo.Clients'中的键。该声明已经终止。该主键ClientId字段不是身份栏因此需要填充

到目前为止，我有以下

insert into Clients(ClientID, Title, Forenames, FamilyName,
                    [Address], Town, County, PostCode,
                    PhoneNumber, StartDate)
    SELECT (Select Max(Clients.ClientID)+ 1,
            SRCServiceUsers.Title,
            SRCServiceUsers.[First Names],
            SRCServiceUsers.Surname,
            --BUILD UP MUITIPLE COLUMNS
            SRCServiceUsers.[Property Name] + ', ' + SRCServiceUsers.Street + ', ' 
               +  SRCServiceUsers.Suburb as [Address],
            SRCServiceUsers.Town,
            SRCServiceUsers.County,
            SRCServiceUsers.Postcode,
            SRCServiceUsers.Telephone,
            SRCServiceUsers.[Start Date]
    FROM 
       srcsERVICEuSERS

如何在插入数据时自动增加PK字段 - CLientID？

非常感谢

安德鲁

Answer 1

SET TRANSACTION ISOLATION LEVEL SERIALIZABLE

BEGIN TRANSACTION

DECLARE @MaxClientId INT

SELECT @MaxClientId = MAX(ClientID) /*SERIALIZABLE will prevent any inserts above this*/
FROM Clients

INSERT INTO Clients(....)
SELECT ROW_NUMBER() OVER (ORDER BY (SELECT 0)) + @MaxClientId...
FROM srcsERVICEuSERS

COMMIT

在没有标识列的表之间复制数据

1 个答案: