sql - 创建表 : "There is already an object named ... in the database", 但未创建具有该名称的对象时出错

Question

我正在尝试在 Microsoft SQL Server 2005 (Express) 上创建一个表。

当我运行此查询时

USE [QSWeb]
GO

/****** Object:  Table [dbo].[QSW_RFQ_Log]    Script Date: 03/26/2010 08:30:29 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

SET ANSI_PADDING ON
GO

CREATE TABLE [dbo].[QSW_RFQ_Log](
    [RFQ_ID] [int] NOT NULL,
    [Action_Time] [datetime] NOT NULL,
    [Quote_ID] [int] NULL,
    [UserName] [nvarchar](256) NOT NULL,
    [Action] [int] NOT NULL,
    [Parameter] [int] NULL,
    [Note] [varchar](255) NULL,
 CONSTRAINT [QSW_RFQ_Log] PRIMARY KEY CLUSTERED 
(
    [RFQ_ID] ASC,
    [Action_Time] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

GO

我收到此错误消息

Msg 2714, Level 16, State 4, Line 2 There is already an object named 'QSW_RFQ_Log' in the database. Msg 1750, Level 16, State 0, Line 2 Could not create constraint. See previous errors.

但是如果我尝试使用此查询找到有问题的对象:

SELECT *
FROM QSWEB.sys.all_objects
WHERE upper(name) like upper('QSW_RFQ_%') 

我明白了

(0 row(s) affected)

这是怎么回事？？？

Answer 1

您正在尝试创建一个与约束 (QSW_RFQ_Log) 同名的表。您的查询找不到该对象，因为表创建失败，因此该对象在错误后不存在。为约束选择一个新名称，它将起作用，例如:

CONSTRAINT [QSW_RFQ_Log_PK] PRIMARY KEY CLUSTERED