Ignore Foreign Keys On An Insert Query

Feb 25, 2008

Hi. i am updating a field on a table i have called tblNavproductId. when doing the insert, i get the error message that you know, it is is violation of a foreign key constraint on NavId. i see the foreign key, so i know it is there and i understand that. i read the books online and here is the article;

http://msdn2.microsoft.com/en-us/library/ms186247.aspx

does anyone have a good example of this type of query? i am putting 990k+ records in at once, so would this be a bulk insert? Thanks.

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Insert New Records B/c New Foreign Keys

Feb 12, 2008

I have a Brokers table and Trans (transactions) table. When I insert new transactions, I run a stored procedure or trigger to update the Brokers table since a transaction may have a new Broker. Is there an simpler way to do this than my query below?

INSERT INTO Brokers (Brokers.broker_id)
SELECT X.broker_id
FROM (SELECT DISTINCT broker_id FROM Trans) As X
WHERE NOT EXISTS (SELECT Brokers.broker_id FROM Brokers WHERE Brokers.broker_id = X.broker_id)

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Insert Records Into A Table With Foreign Keys

May 21, 2008

i'm using sql express, management studio express and a visual web developer starter kit.
i have 4 tables: items; categories; categorization; old_items
the old_items table has both the item id and category fields in it, the new db has them separated: items.id; categories.id; categorization.itemId, categorizaton.parentCategoryId, both of which are foreign keys.
i need to get the old_item.id and old_item.category values into the new categorization table but it keeps choking on the foreign keys and i can't get past it. as far as i've been able to figure out so far, i need to turn off the foreign keys to do the insert but i'm not sure and i haven't been able to find any sql query examples that demonstrate it or explain it well enough for my n00b self.
i've read http://msdn.microsoft.com/en-us/library/10cetyt6.aspx, "How to: Disable Foreign Key Constraints with INSERT and UPDATE Statements" but i don't get how that affects it, it seems like one of the other options would actually disable them.
can anyone help? i've been trying all the permutations of queries i can think of and not getting it.
thanks.

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Import Csv Data To Dbo.Tables Via CREATE TABLE && BUKL INSERT:How To Designate The Primary-Foreign Keys && Set Up Relationship?

Jan 28, 2008

Hi all,

I use the following 3 sets of sql code in SQL Server Management Studio Express (SSMSE) to import the csv data/files to 3 dbo.Tables via CREATE TABLE & BUKL INSERT operations:

-- ImportCSVprojects.sql --

USE ChemDatabase

GO

CREATE TABLE Projects

(

ProjectID int,

ProjectName nvarchar(25),

LabName nvarchar(25)

);

BULK INSERT dbo.Projects

FROM 'c:myfileProjects.csv'

WITH

(

FIELDTERMINATOR = ',',

ROWTERMINATOR = ''

)

GO
=======================================
-- ImportCSVsamples.sql --

USE ChemDatabase

GO

CREATE TABLE Samples

(

SampleID int,

SampleName nvarchar(25),

Matrix nvarchar(25),

SampleType nvarchar(25),

ChemGroup nvarchar(25),

ProjectID int

);

BULK INSERT dbo.Samples

FROM 'c:myfileSamples.csv'

WITH

(

FIELDTERMINATOR = ',',

ROWTERMINATOR = ''

)

GO
=========================================
-- ImportCSVtestResult.sql --

USE ChemDatabase

GO

CREATE TABLE TestResults

(

AnalyteID int,

AnalyteName nvarchar(25),

Result decimal(9,3),

UnitForConc nvarchar(25),

SampleID int

);

BULK INSERT dbo.TestResults

FROM 'c:myfileLabTests.csv'

WITH

(

FIELDTERMINATOR = ',',

ROWTERMINATOR = ''

)

GO

========================================
The 3 csv files were successfully imported into the ChemDatabase of my SSMSE.

2 questions to ask:
(1) How can I designate the Primary and Foreign Keys to these 3 dbo Tables?
Should I do this "designate" thing after the 3 dbo Tables are done or during the "Importing" period?
(2) How can I set up the relationships among these 3 dbo Tables?

Please help and advise.

Thanks in advance,
Scott Chang

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2 Foreign Keys To The Same Table - Multitable Selection Query Problem

Jun 23, 2006

Hello,I have 2 tables:- Customers with columns:customerID(prim_key),customerName(with customer's names)- Deliveries with columns:deliveryID(primKey),sender(ref_key to CustomerID from Customers),receiver(also ref_key to CustomerID from Customers);I need to select all data about deliveries, but instead of havingsender's ID and receiver's ID, I need to have their Names.I tried to do:SELECTdeliveries.deliveryID,Customers.customerName AS sender,Customers.customerName AS receiverFROMcustomers, deliveriesWHERECustomers.customerID=Deliveries.sender ANDCustomers.customerID=Deliveries.receiver;But this only works if sender=receiver, which is obvious ;)I'd like to know if there is any other way for obtaining those datawithin one queryThank you very much for your helpChris

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Creating Inter-table Relationships Using Primary Keys/Foreign Keys Problem

Apr 11, 2006

Hello again,

I'm going through my tables and rewriting them so that I can create relationship-based constraints and create foreign keys among my tables. I didn't have a problem with a few of the tables but I seem to have come across a slightly confusing hiccup.

Here's the query for my Classes table:

Code:

CREATE TABLE Classes
(
class_id
INT
IDENTITY
PRIMARY KEY
NOT NULL,

teacher_id
INT
NOT NULL,

class_title
VARCHAR(50)
NOT NULL,

class_grade
SMALLINT
NOT NULL
DEFAULT 6,

class_tardies
SMALLINT
NOT NULL
DEFAULT 0,

class_absences
SMALLINT
NOT NULL
DEFAULT 0,

CONSTRAINT Teacher_instructs_ClassFKIndex1 FOREIGN KEY (teacher_id)
REFERENCES Users (user_id)
)

This statement runs without problems and I Create the relationship with my Users table just fine, having renamed it to teacher_id. I have a 1:n relationship between users and tables AND an n:m relationship because a user can be a student or a teacher, the difference is one field, user_type, which denotes what type of user a person is. In any case, the relationship that's 1:n from users to classes is that of the teacher instructing the class. The problem exists when I run my query for the intermediary table between the class and the gradebook:

Code:

CREATE TABLE Classes_have_Grades
(
class_id
INT
PRIMARY KEY
NOT NULL,

teacher_id
INT
NOT NULL,

grade_id
INT
NOT NULL,

CONSTRAINT Grades_for_ClassesFKIndex1 FOREIGN KEY (grade_id)
REFERENCES Grades (grade_id),

CONSTRAINT Classes_have_gradesFKIndex2 FOREIGN KEY (class_id, teacher_id)
REFERENCES Classes (class_id, teacher_id)
)

Query Analyzer spits out: Quote: Originally Posted by Query Analyzer There are no primary or candidate keys in the referenced table 'Classes' that match the referencing column list in the foreign key 'Classes_have_gradesFKIndex2'. Now, I know in SQL Server 2000 you can only have one primary key. Does that mean I can have a multi-columned Primary key (which is in fact what I would like) or does that mean that just one field can be a primary key and that a table can have only the one primary key?

In addition, what is a "candidate" key? Will making the other fields "Candidate" keys solve my problem?

Thank you for your assistance.

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Creating Indexes On Columns That Are Foreign Keys To Primary Keys Of Other Tables

Jul 16, 2014

what the best practice is for creating indexes on columns that are foreign keys to the primary keys of other tables. For example:

[Schools] [Students]
---------------- -----------------
| SchoolId PK|<-. | StudentId PK|
| SchoolName | '--| SchoolId |
---------------- | StudentName |
-----------------

The foreign key above is as:

ALTER TABLE [Students] WITH CHECK ADD CONSTRAINT [FK_Students_Schools]
FOREIGN KEY([SchoolId]) REFERENCES [Schools] ([SchoolId])

What kind of index would ensure best performance for INSERTs/UPDATEs, so that SQL Server can most efficiently check the FK constraints? Would it be simply:

CREATE INDEX IX_Students_SchlId ON Students (SchoolId)
Or
CREATE INDEX IX_Students_SchlId ON Students (SchoolId, StudentId)

In other words, what's best practice for adding an index which best supports a Foreign Key constraint?

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Foreign Keys - On Which Kind Of Keys Do The Base On?

Nov 22, 2007

Hello!I have a table A with fields id,startdate and other fields. id and startdateare in the primary key.In the table B I want to introduce a Foreign key to field id of table A.Is this possible? If yes, which kind of key I have to build in table A?Thx in advance,Fritz

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Ignore Duplicate Primary Keys

Mar 27, 2008

I have one table that stores log messages generated by a web service. I have a second table where I want to store just the distinct messages from the first table. This second table has two columns one for the message and the second for the checksum of the message. The checksum column is the primary key for the table.

My query for populating the second table looks like:
INSERT INTO TransactionMessages ( message, messageHash )
SELECT DISTINCT message, CHECKSUM( message )
FROM Log
WHERE logDate BETWEEN '2008-03-26 00:00:00' AND '2008-03-26 23:59:59'
AND NOT EXISTS (
SELECT * FROM TransactionMessages
WHERE messageHash = CHECKSUM( Log.message ) )

I run this query once per day to insert the new messages from the day before. It fails when a day has two messages that have the same checksum. In this case I would like to ignore the second message and let the query proceed. I tried creating an instead of insert trigger that only inserted unique primary keys. The trigger looks like:

IF( NOT EXISTS(
SELECT TM.messageHash
FROM TransactionMessages TM, inserted I
WHERE TM.messageHash = I.messageHash
) )
BEGIN
INSERT INTO TransactionMessages ( messageHash, message )
SELECT messageHash, message FROM inserted
END

That didn't work. I think the issue is that all the rows get committed to the table at the end of the whole query. That means the trigger cannot match the duplicate primary key because the initial row has not been inserted yet.

Does anyone know the best way to do this?

Thanks for your help,
Drew

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Mind Boggling / How Can You Query Self Referencing Tables? (self Referencing Foreign Keys)

Jun 15, 2006

For example, the table below, has a foreign key (ManagerId) that points to EmployeeId (primary key) of the same table.
-------Employees table--------
EmployeeID . . . . . . . . . . int
Name . . . . . . . . . . . nvarchar(50)
ManagerID . . . . . . . . . . . int

If someone gave you an ID of a manager, and asked you to get him all employee names who directly or indirectly report to this manager.
How can that be achieved?

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Ignore Latin And Other Foreign Characters In Text Search.

Apr 22, 2008

Hi, i have a query that goes like this

select *
from Users
where UserName Like =@Username;

the values for 'UserName' go like this

Adri�n
Jes�s
Fern�ndez
G�ero

all of them have spanish accents. is there a way to make the "like" value to ignore the spanish characters? (�, �, �, �, �, �, etc)

That is because the user will not always write "Jes�s" they will write "Jesus" or they will not write "Adri�n" they will write "Adrian"

so is there any way to tell the SQL Server engine to ignore those characters?

thanks!!!

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Insert Query Has Conflict With Foreign Key

Nov 21, 2006

there have a exception when I trying to run a insert query

the exception is occur on cmd.ExecuteReder(); and shows
Insert Query conflict with Foreign key..

why? and how to resolve it?

thank you

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Foreign Keys

Apr 17, 2007

Can any body tell me how to know to what columns of other table it refers to.
shiva kumar

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Foreign Keys

Aug 24, 1999

Could someone enlighten me as to the advantage of using the foreign key tab when in table design mode in the Enterprise Manager. Does it have any advantages ?? Is it necessary ??

thanks in advance

Paul

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Foreign Keys

Mar 29, 2001

I haven't tried, but does anyone know if its possible to a have a foreign key for two tables when the tables reside in different databases (on the same server)?

Thanks,
Doug Smith

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Foreign Keys

Oct 25, 2001

l'm trying to do inserts on tables with foreign keys and they keep crashing. Can somebody please help.Whats the best way of populating data that has foreign keys?

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Foreign Keys

Oct 4, 2004

How would I drop a foreign Key?

Thanks

Lystra

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Keys, Foreign Key?

Mar 10, 2004

I need to know if this is required? I have products, with the help of their business account numbers, are naturally categorized numerically. I want to create a product category table and a product account table.

Example :
tbProductCategories
TypeCode | Description
1000 | Cups
2000 | Plates

tbProductAccounts
Account | Description
1001 | Mug
1002 | Glass
2001 | Plate
2002 | Saucer

With the above tables (which are made up :) ), would you include
a foreign key in tbProductAccounts indicating the type code?

What would the stored proc look like without it?

Create Procedure usp_GetProductAccounts

@iTypeCode int

AS

SELECT tbProductAccounts.Account,
tbProductAccounts.Description
FROM tbProductAccounts
WHERE tbProductAccounts.Account - iTypeCode > 0 AND < 999

Would this work? Or should the foriegn key always be included?

Mike B

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Foreign Keys - Allow Zero?

Jun 8, 2008

I am creating a series of foreign keys in my new database, and so far everything is going fine. The company I work for never uses them, and I am working on my own stuff on my own time now.

I come across one table that I do want one field to allow zeroes, but when its set to a value, to exist in the other table.

To be more specific. I have a PO type table, which has an EmployeeID of the person who made the PO, and another field to store who received the PO when the order arrives. I want that 2nd Employee field to be zero until it's received.

I created an employee of zero, to allow the foreign key to be created. But all the other tables that have foreign keys to my Employee table I would prefer to not allow zeroes. So I changed them to use a check of (employeeid > 0).

Is it possible to have a foreign key say that I want the value from the Field in Table A to exist in table B, or to be zero? Or would it just be easier to leave off the foreign key in this one case?

Tks

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Foreign Keys

Dec 15, 2006

Shiry writes "Hi, I'm a beginner and I'm a bit stuck here..

I'm creating this database for my homework, I'm using Marks & Spencer as an
example. It has a table, products, for the clothes

id
name
cat_id ....... connected to typ_cat
colour_id ...... connected to typ_colour
size_id ....... connected to typ_size
price
sup_id ....... connected to typ_sup ...... but here i'm stuck a bit, are you
allowed to connect a typ_table to another typ_table?

this is the typ_sup:
id
name
address
city_id ......... connected to typ_city

or rather have a separate sup table with the same id, name, address, city_id
id will be connected to typ_sup
and the products table.. sup_id will then be connected to typ_sup..?

What way is better? and is it allowed to connect a typ_table to another
typ_table?

Thanks in advance!!!!

Shiry"

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Foreign Keys

Oct 11, 2006

I have created two tables:

UserInfo:

UserID (PK)

Hairid

eyeColorid

faceShapeid

and

HairInfo:

HairInfoID (PK)

Hairid

HairDesc

Now I want to have a one to many relationship between UserInfo and HairInfo. I want to specify Hairid as the foreign key in the HairInfo table. Here UserInfo is the parent and HairInfo is the child. I am using SQL server 2000. Is there a way to do it using the Enterprise manager interface. Can someone run me through the steps to do it.

Thanks...

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Set-Off Foreign Keys

Feb 28, 2008

Is there a way to temporaly set off foreign keys dependencies (like a sql command or something...) and then set them on again? I've to migrate 90 tables on my app, but i get the "dependencies error", any ideas?

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Use Of Foreign Keys

Mar 24, 2008

having been used to creating databases for the past nine years in MS Access, i have been recently getting used to the basics of SQL Server 2005 express edition. i know pretty much all of the simple basics, but i have hit some trouble.

in MS Access, when i have used the "Design View" to develop all of my tables, fields and validation rules, i have used their "Lookup Wizard" to develop ways of assigning a record to a certain value - example;

CLUB:
Club_Id (Primary Key)
Club

PLAYER:
Player_Id
Player_Name
Club (Foreign Key)

the flaw, i suppose, is the ease with which i can create a relationship between TWO tables without the child tables foreign key having to be an ID (integer) and users can select a "Club" of their choice to assign a "Player" to in the PLAYER table. i.e.

CLUB:
Club_Id: 1
Club: Man Utd

PLAYER:
Player_Id: 1
Player_Name: Ryan Giggs
Club: Man Utd (FKEY)

instead of;

PLAYER:
Player_Id: 1
Player_Name: Ryan Giggs
Club: 1 (FKEY)

i hope i am making sense. now the awkward bit as far as i'm concerned:

in SQL Server 2005 Management Studio Express, i cannot do this once i do the necessary tables, content and relational diagrams.

so i have this;

PLAYER:
Player_Id: 1
Player_Name: Ryan Giggs
Club: 1 (FKEY)

instead of what i want, which is this;

PLAYER:
Player_Id: 1
Player_Name: Ryan Giggs
Club: Man Utd (FKEY)

how can this be achievable using Studio Management Express 2005 for someone like myself who is still something of an SQL novice (of a sort)

help would be much appreciated

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Remote Foreign Keys

Jun 21, 2007

Right now i'm building a language centre DB. Is going to hold translations for data in tables in another DB (english DB). The idea is going to be that there is going to be a table in the Language DB for every language and table it is going to translate in the english DB.
So lets consider the following in the English DB:
PROJ_TBL_HELPTOPICS -> PK_HELP_ID -> TITLE -> DESCR
PROJ_TBL_CATEGORIES -> PK_CAT_ID -> TITLE -> DESCR

In the Language DB I want to hold translations for HELPPTOPICS and CATEGORIES, and I want translations for Spanish and Japanese.
PROJ_TBL_HELPTOPICS_ES -> PK_TRANS_ID -> FK_HELP_ID -> TRANS_TITLE -> TRANS_DESCR

The rest is going to be the layout as abovePROJ_TBL_HELPTOPICS_JA PROJ_TBL_CATEGORIES_ESPROJ_TBL_CATEGORIES_JA
The reasons I separated up the language DB from the english DB are:
1. English DB has, and is going to have a lot more tables, and is going to be heavily queried (plus I think dont think the translations are going to be used anywhere near as often and the english). I figured the less tables, where possible, the better.
2. Putting translations in different a different DB, I could take better advantage of colliations specific to a language for example when using Full-Text searching on Japanese text

Anyways, here's my question!?!
I want to link the foreign key column to the table it is translating primary key column (in the English DB). I want to be able to take advantage of Cascade on Delete. So when an item is deleted from EnglishDB.PROJ_HELP_TOPICS it is going to be deleted from LanguageDB.PROJ_HELP_TOPICS_[LANG ISO]. Is this done through Mirroring?

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Help On Foreign Keys And Tables

Jan 7, 2008

hi.
How to update FormA table from customer table. Let say i wish to keep small number of fields from each table so i use foreign keys as reference.
However i had a problem when i tried to save the relationships of both tables, i receive the error that FormA_id is not able to insert null into value.
Cust_id(PK) is identify column, as well FormA_id(FK) and FormA_id(PK) too. For example, when i insert a record from customer table, it will automatically create id for FormA.
Table structure. Customer
cust_id(PK),name,age,formA_id(FK)
Table structure, FormA
formA_id(PK), info, date,
How to solve ?

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Help With Deleting And Foreign Keys.

Feb 3, 2008

I'm working with a SQL 2000 DB, which has a table structure as follows, implemented with foreign key constraints: ________________________________| ||--> TABLE1 --> TABLE2 --> TABLE3 --|
(ie, it forms a 'loop' so to speak)
I am trying to create a clean copy of this database, basically by deleting all the data in most of the tables, and these 3 tables are included. Of course, when I run a DELETE on any of these tables, it complains because of the FK. How can I script a delete on the 3 tables without manually deleting row after row, until there aren't anymore relations?
Cheers for any help :)

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Removing Foreign Keys

Feb 1, 2004

Hi everyone,

I've been using VS.NET to design and implement my SQL databases. This has been simple and effective.

I've deployed the database onto the production database server and it's been performing without a hitch for some time now.

My problem is that I now need to remove a foreign key relationship on the production database as I have had a relationship between two tables but now not wanting the relationship since the data that had the relationship is now not wanting to be compulsory. I've had a look in the system.foreignkey (I think) table but I can't make head or tail of it.

Long story short, how can I find and remove the relationship from Query Analyser / Enterprise Manager ? I know how to do this in VS.NET diagram (just delete the relationship) but when you open the production database in VS.NET the diagram is no longer there.

Any help will be appreciated!!

Thanks!
Andrew

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Novice Needs Some Help With Foreign Keys

Sep 4, 2005

Hey all - been knocking my head on this on for awhile - perhaps someone could shed a little light.
I have 2 tables that I want to link:
Table 1:
UserID - Primary key
First Name
Last name
AuditionID - FK

Table 2:
AuditionID - PK
Description
Sing
instrument

So - I have a web form that collects the information for both tables and then insets the collected data. But, the AuditionID value in Table1 does not update. Now, I assume I am incorrect in thinking the AuditionID in Table1 will be automagically updated when Table2 creates it's key...?
If that is indeed the case, how do you update 2 tables and maintain a foreign key relationship?

I hope I am being clear enough - any help would be greatly appreciated.

Thanks all

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Triggers And Foreign Keys

Aug 25, 1998

Hi!
Does anybody know why after applying both triggers and foreign keys to a table (standard relational database procedure!!!), when I try to perform, say a simple delete, I am not allowed to do so and get this error message:

Msg 547, Level 16, State 2
DELETE statement conflicted with COLUMN REFERENCE constraint `FK_contract_1__14`. The conflict occurred in database `tmp`, table `contract`, column `employee_id`
Command has been aborted.

HELP!!!!
Cheers, Marc

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Foreign Keys For Some Rows, Not Others

Jan 14, 2005

I have a database with a set of items that have different ways of describing their locations. One type of item uses states, the other uses some arbitrary region that could cross state boundries. Every item in each state/region is numbered starting at 1, so that each item within a state/region has a unique area number.

So I have a table of states (that doesn't need maintaining) and a table of regions (that does. New regions could be added, existing regions could be modified.)

CREATE TABLE states (
stateId int primary key,
stateCode char(2),
stateName varchar(16),
UNIQUE(stateCode)
)

CREATE TABLE regions (
regionId int primary key,
regionCode char(6),
regionName varchar(32),
UNIQUE(regionCode)
)

My table of items points to these other tables. I want to use foreign keys for referential integrity. So my table looks something like this:

CREATE TABLE items (
itemId int primary key,
itemName varchar(32),
itemType ENUM('state', 'region'),
areaNum int,
stateId int NULL,
regionId int NULL,
UNIQUE(itemName),
UNIQUE(areaNum, stateId, regionId),
FOREIGN KEY stateId REFERENCES states (stateId),
FOREIGN KEY regionId REFERENCE regions (regionId)
)

My problem seems to be that when I insert records into the items table, MS SQL doesn't like a foreign key entry to be null (even though I say it can be null.) I think the problem is that there is no value in the states or regions table with the stateId/regionId = 0. I don't want to entry a dummy entry for a non-state or non-region, but I can't figure out how to do this otherwise.

Is there a way to have MS SQL permit a foreign key value to be NULL? Or is there a better way to organize this data? I would appreciate any guidance. Thanks.

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Foreign Keys IDENTITY

Aug 2, 2004

I've posted this in the general database forum as well but think it is more sql server specific. I have three tables as below. My problem is that when I insert anything into has_quote, cat_ref and cust_id are both null. Any ideas on how to get round this? Thanks

Code:

CREATE TABLE Item (
cat_ref INT IDENTITY(1,1) PRIMARY KEY,
descrip VARCHAR(50),
date_added SMALLDATETIME,
cat_type VARCHAR(20),
contract VARCHAR(10),
cost_price SMALLMONEY,
supplier_name VARCHAR(20),
supplier_phone VARCHAR(20))

CREATE TABLE has_quote (
quote_id INT IDENTITY (1,1) PRIMARY KEY,
installation_charge SMALLMONEY,
date_of_quote SMALLDATETIME,
commercial_markup SMALLMONEY,
service_desk_contact VARCHAR(20),
category INTEGER,
date_last_pricecheck SMALLDATETIME,
cat_ref INT FOREIGN KEY
REFERENCES Item(cat_ref),
cust_id INT FOREIGN KEY
REFERENCES Customer(cust_id))

CREATE TABLE Customer (
first_name VARCHAR(10),
surname VARCHAR(10),
customer_phone VARCHAR(20),
contract VARCHAR(10),
location VARCHAR(20),
email VARCHAR(50),
cust_id INT IDENTITY (1,1) PRIMARY KEY)

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Multiple Foreign Keys

Jun 25, 2004

What are the possible issues I could run in to having multiple foreign keys in a table. Here is why I ask. I have a db (sql server) that has a participant table, a forum table, and a forum reply table. Every record in the forum reply table is associated with the forum table via a PK-FK relationship w/cascading updates/deletes. The participants who post in these tables are not tied back to the participant table via a PK-FK relationship w/cascading updates/deletes. Should they be?

The problem I ran in to is that one particpant was deleted from the participant table but a post with their partid still existed in the forum or forum reply tables.

My feeling is that anytime a participant is deleted, everything that pertains to them should go too, right? If I am right, what do I have to be careful of if I do that?

Let me know! Thanks!!

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Multiple Foreign Keys

Nov 20, 2004

I am constructing a db in sql server 2000 that will score cross-country running meets. I have an individual results table that needs to only contain participants that are entered as participants but are specific to a certain race as well. Can I have this table be linked back to TWO other tables via the PK-FK relationship and what issues might I have doing that?

Thanks!

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