Question

我想知道是否有人可以帮助我使用下面的SQL代码。我试图将BC_completions表中的所有记录插入到我的Geodata表中。如果我在插入上排除ID列，我会得到一个'Msg 515 ...无法将值NULL插入列'ID'。但如果我将其包含在下面，我会得到一个'Msg ...违反PRIMARY KEY约束'。

更令人困惑的是，如果我手动输入我从@PK获得的值，数据库会接受它，所以这里的任何帮助都会很棒。

由于

DECLARE @PK AS INT
DECLARE @COUNT AS INT
DECLARE @RECORDCOUNT AS INT

SET @PK = 
(SELECT TOP 1 ID FROM PRCORE.DBO.GEODATA
ORDER BY ID DESC)


SET @RECORDCOUNT =
(SELECT  COUNT(*) FROM BC_COMPLETIONS)


SET @COUNT = 0

WHILE @COUNT < @RECORDCOUNT  
BEGIN
SET @PK = @PK+1
SET @COUNT = @COUNT+1

INSERT INTO PRCORE.DBO.GEODATA     
(ID,RecordType,ReferenceName,LocationDescription,Description,ORN,StartDate,ChgText)
SELECT @PK,189,REFVAL,ADDRESS,DSCRPN,ORN,RECPTD,AGTNAME
FROM BC_COMPLETIONS B

where @PK not in (select ID from prcore.dbo.geodata)

END

Answer 1

这是循环和插入语句的WHERE约束的问题。您正在从BC_COMPLETIONS中选择所有记录并将它们分配给相同的PK。

相反，使用ROW_NUMBER（）函数分配您的PK，这样您就可以一次完成所有操作，而不是一次只执行一条记录：

DECLARE @PK AS INT
DECLARE @RECORDCOUNT AS INT

SET @PK = (SELECT TOP 1 ID FROM PRCORE.DBO.GEODATA ORDER BY ID DESC) + 1

SET @RECORDCOUNT = (SELECT  COUNT(*) FROM BC_COMPLETIONS)

INSERT INTO PRCORE.DBO.GEODATA (ID,RecordType,ReferenceName,LocationDescription,Description,ORN,StartDate,ChgText)
SELECT ROW_NUMBER() OVER(ORDER BY REFVAL) + @PK ,189,REFVAL,ADDRESS,DSCRPN,ORN,RECPTD,AGTNAME
FROM BC_COMPLETIONS B

违反主键约束查询

1 个答案: