Question

使用SQL Server 2008

创建表customerinfo脚本

CREATE TABLE [dbo].[customerinfo](
    [customer#] [int] IDENTITY(1,1) NOT NULL,
    [acc#] [varchar](10) NOT NULL,
     CONSTRAINT [PK_unc_customerinfo] PRIMARY KEY NONCLUSTERED 
(
    [customer#] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY],
 CONSTRAINT [idx_u_customerinfo] UNIQUE NONCLUSTERED 
(
    [acct#] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

使用重置0重置标识字段，然后我尝试在表中插入行。将错误视为

Violation of UNIQUE KEY constraint 'idx_u_customerinfo'. Cannot insert duplicate key in object 'dbo.customerinfo'. The duplicate key value is (50950/01950).

如何纠正这个问题。

Answer 1

首先：您的查询错误。

idx_u_customerinfo是acc#或acct#上唯一的非聚集索引。（acct#不是你桌子上的一个字段。）

第二：检查插入的数据，当然你有多行具有相同的acc#。

如果您使用Insert Into [dbo].[customerinfo] Select ...查询向表中插入数据，请使用以下查询以查找重复记录：

Select acc#, count(*)
from ..
group by acc#
having count(*)<>1

无法在表中插入行

1 个答案: