Question

SQL 2008 Database

Asked by: ltorres321


Hello I need to create a table with 3 Primary Keys But I get these errors


Server Msg: 8110, State: 42000, [Microsoft][SQL Server Native Client 10.0][SQL Server]
Cannot add multiple PRIMARY KEY constraints to table 'dbo.ProductDetail'.
Server Msg: 8110, State: 42000, [Microsoft][SQL Server Native Client 10.0][SQL Server]
Cannot add multiple PRIMARY KEY constraints to table 'dbo.ProductDetail'.
Server Msg: 8110, State: 42000, [Microsoft][SQL Server Native Client 10.0][SQL Server]
Cannot add multiple PRIMARY KEY constraints to table 'dbo.ProductDetail'.

I tried to do it from the database design
But I get the error in the image below

any work arounds would be great this must be possible.. Right??
 

USE [AccessData]
GO 
/****** Object:  Table [dbo].[ProductDetail]    Script Date: 11/03/2009 14:25:58 ******/
SET ANSI_NULLS ON
GO 
SET QUOTED_IDENTIFIER ON
GO 
CREATE TABLE [dbo].[ProductDetail](
	[ID] [int] Primary Key IDENTITY(1,1),
	[ItemNumber] [nvarchar](255) Primary Key,
	[Product_Number] [nvarchar](255) Primary Key,
	[CaseUPC] [ntext] NULL,
	[UnitUPC] [nvarchar](255) NULL,
	[Description1] [ntext] NULL,
	[Description2] [ntext] NULL,
	[PackSize] [nvarchar](255) NULL,
	[UnitsPerCase] [int] NULL,
	[Quantity] [numeric](18, 0) NULL,
	[P_EFF_Date] [datetime] NOT NULL,
	[P_END_Date] [datetime] NULL,
	[DIS_Date] [datetime] NULL,
	[Case_Weight] [float] NULL,
	[Case_CF] [float] NULL,
	[Case_Layer] [numeric](18, 0) NULL,
	[Layer_Pallet] [numeric](18, 0) NULL,
	[OD_DL] [float] NULL,
	[OD_DW] [float] NULL,
	[OD_DH] [float] NULL,
	[Pallet_DL] [float] NULL,
	[Pallet_DW] [float] NULL,
	[Pallet_DH] [float] NULL,
	[Shelf_Life] [numeric](18, 0) NULL,
	[ProductLine] [nvarchar](255) NULL,
PRIMARY KEY CLUSTERED 
(
	[ID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY] 
GO
                                  
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Asked On
2009-11-03 at 11:35:31ID24868468
Tags

SQL 2008 Syntax

Topics

SQL Server 2008

,

Databases Miscellaneous

Participating Experts
2
Points
500
Comments
7

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Answers

 

by: angelIIIPosted on 2009-11-03 at 11:38:13ID: 25732641

that needs to be 1 primary key over the 3 columns, the syntax needs to be different:
also note that with sql 2005: don't use TEXT/NTEXT,  but VARCHAR(MAX) and NVARCHAR(MAX).

the error message is because you create the primary key as clustered by default, which makes the row size is a problem.

anyhow, make the ID primary key, the other fields just a unique index (after table) creation

 

by: aneeshattingalPosted on 2009-11-03 at 11:38:21ID: 25732642

u can have only one PK per table, why do u need three pk ? if you are looking for a combined primary key try like this

SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[ProductDetail](
      [ID] [int] IDENTITY(1,1) NOT NULL ,
      [ItemNumber] [nvarchar](255) NOT NULL ,
      [Product_Number] [nvarchar](255) NOT NULL ,
      [CaseUPC] [ntext] NULL,
      [UnitUPC] [nvarchar](255) NULL,
      [Description1] [ntext] NULL,
      [Description2] [ntext] NULL,
      [PackSize] [nvarchar](255) NULL,
      [UnitsPerCase] [int] NULL,
      [Quantity] [numeric](18, 0) NULL,
      [P_EFF_Date] [datetime] NOT NULL,
      [P_END_Date] [datetime] NULL,
      [DIS_Date] [datetime] NULL,
      [Case_Weight] [float] NULL,
      [Case_CF] [float] NULL,
      [Case_Layer] [numeric](18, 0) NULL,
      [Layer_Pallet] [numeric](18, 0) NULL,
      [OD_DL] [float] NULL,
      [OD_DW] [float] NULL,
      [OD_DH] [float] NULL,
      [Pallet_DL] [float] NULL,
      [Pallet_DW] [float] NULL,
      [Pallet_DH] [float] NULL,
      [Shelf_Life] [numeric](18, 0) NULL,
      [ProductLine] [nvarchar](255) NULL,
PRIMARY KEY CLUSTERED
(
      [ID] ASC,[ItemNumber] asc, [Product_Number] asc
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO

 

by: aneeshattingalPosted on 2009-11-03 at 11:39:25ID: 25732657

or else go for 1 pk ( ID ) and 2 additional Unique keys

 

by: ltorres321Posted on 2009-11-03 at 11:55:15ID: 25732841

Ok Looks great it did it..

It gave me this error
Warning! The maximum key length is 900 bytes. The index 'PK__ProductD__29AB3D8C1CF15040' has maximum length of 1024 bytes. For some combination of large values, the insert/update operation will fail.

(Will this cause an issue you this with data like this??) Can you tell me the repercussions

ItemNumber
24-12234

ProductNumber
12345678

These are typical lengths for these columns..

The reason for the Multiple Keys (Try the explain best as I can)

Product table has ItemNumber

well Each ItemNumber can have many ProdcutNumbers (Therefore ProductDetail table)

which holds all the different ProductNumbers..

Now Why the ID is because sometimes The ProductNumber and ItemNumber Wont Change but there my be a change in cube or Wieght in the product (hence I added the ID column as a Key)

Yes, very Confusing and weird welcome to the world of selling foods and Confections.. I have been on this project for a year and just now i am getting a handle on the relations ships and how they change..


If think there may be a better way I am all ears... I know some but I have a lot to learn..

Thank you for you fast Response...








 

by: aneeshattingalPosted on 2009-11-03 at 12:09:50ID: 25732996

are u shure u need NAVRCHAR to store the ItemNumber and productNumber , change that to varchar and recreate your table

 

by: angelIIIPosted on 2009-11-03 at 12:10:12ID: 25733000

as I said: create all the indexes (including the primary key) as non-clustered,
OR
split the table into several tables (vertical partitioning) => this can give you other performance benefits


and again:
***** VERY IMPORTANT ****


DO NOT USE TEXT / NTEXT
use VARCHAR(MAX) / NVARCHAR(MAX) instead in your new developements !!!!!!!!!!

 

by: ltorres321Posted on 2009-11-03 at 13:55:36ID: 25734225

Sorry I didnt really understand exactly what you wrote what I did pick-up is that you want me to change the keys from nvarchar(max) to VARCHAR(MAX) I can do that..

When you say split in to tables I thought that by using Product and Product_Detail as separate table.. which I have not even mentioned link to Pricing

Please write out the new Query if there are other changes i am missing

Thank you both!!

20120131-EE-VQP-002

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