Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 394
  • Last Modified:

Can you have multiple foreign key constraints in a SQL create table statement?

I get the folowing error when the Booksregions create table scripts is executed.

Msg 8148, Level 16, State 0, Line 1
More than one column FOREIGN KEY constraint specified for column 'RegionID', table 'dbo.BooksRegions'.

The books and Regions tables are created just fine.

Can you have multiple foreign key constraints in a SQL create table statement?

How do i resolve this error?



CREATE TABLE [dbo].[Books](
      [ISBN] [char](20) NOT NULL Primary key,
      [AuthorID] [char](10) NOT NULL,
      [Title] [nvarchar](250) NOT NULL,
      [Copyright_Year] [char](4) NOT NULL,
      [PublisherID] [char](10) NOT NULL,
      [Language] [char](30) NOT NULL,
      [Price] [money] NOT NULL,
)

CREATE TABLE [dbo].[Regions](
      [RegionID] [char](10) NOT NULL,
      [RegionDescription] [varchar](100) NULL,
      [Country] [char](30) NOT NULL
Primary Key(RegionID)
)


CREATE TABLE [dbo].[BooksRegions](
      [ISBN] [char](20) NOT NULL ,
      [RegionID] [char](10) NOT NULL
CONSTRAINT [FK_BooksRegion_ISBN] FOREIGN KEY([ISBN])
REFERENCES [dbo].[Books] ([ISBN])
CONSTRAINT [FK_BooksRegion_RegionID] FOREIGN KEY([RegionID])
REFERENCES [dbo].[Regions] ([RegionID])
       )
0
wademi
Asked:
wademi
1 Solution
 
pivarCommented:
Hi,

I think your problem here is a missing comma between the constraints. Try this



/peter

CREATE TABLE [dbo].[Books](
      [ISBN] [char](20) NOT NULL Primary key,
      [AuthorID] [char](10) NOT NULL,
      [Title] [nvarchar](250) NOT NULL,
      [Copyright_Year] [char](4) NOT NULL,
      [PublisherID] [char](10) NOT NULL,
      [Language] [char](30) NOT NULL,
      [Price] [money] NOT NULL,
)

CREATE TABLE [dbo].[Regions](
      [RegionID] [char](10) NOT NULL,
      [RegionDescription] [varchar](100) NULL,
      [Country] [char](30) NOT NULL
Primary Key(RegionID)
) 


CREATE TABLE [dbo].[BooksRegions](
      [ISBN] [char](20) NOT NULL ,
      [RegionID] [char](10) NOT NULL
CONSTRAINT [FK_BooksRegion_ISBN] FOREIGN KEY([ISBN])
REFERENCES [dbo].[Books] ([ISBN]),
CONSTRAINT [FK_BooksRegion_RegionID] FOREIGN KEY([RegionID])
REFERENCES [dbo].[Regions] ([RegionID])
       )

Open in new window

0
 
Pratima PharandeCommented:
try this
two comma's missing

CREATE TABLE [dbo].[BooksRegions](
      [ISBN] [char](20) NOT NULL ,
      [RegionID] [char](10) NOT NULL,
CONSTRAINT [FK_BooksRegion_ISBN] FOREIGN KEY([ISBN])
REFERENCES [dbo].[Books] ([ISBN]),
CONSTRAINT [FK_BooksRegion_RegionID] FOREIGN KEY([RegionID])
REFERENCES [dbo].[Regions] ([RegionID])
       )
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Easily Design & Build Your Next Website

Squarespace’s all-in-one platform gives you everything you need to express yourself creatively online, whether it is with a domain, website, or online store. Get started with your free trial today, and when ready, take 10% off your first purchase with offer code 'EXPERTS'.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now