Foreign Key Relationship

Jul 20, 2005

Hi
Im a sql newbie , and have created two tables with a foreign key
relationship.

How do i insert into these tables. If i insert into the primary table
will the foreign key field in the second table be automaticly updated
by ms sql server ?

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Help With Foreign Key Relationship

Jul 3, 2007

When I try to insert a record on my DB (SQL 2005 Express) I get a constraint error. This is my table setup which has been simplified to expose the problem I have:
Categories TABLEint CatId PKvarchar CatName    :
Items TABLEint ItemId PKvarchar ItemName      :
X_Items_Categoriesint CatIdint ItemId
So  basically I have a one-to-many relationship between Items and Categories, in other words each item is associated to one or more categories and this association is done via the X_Items_Categories cross table. On this cross table I set two constraints:


The CatId of each entry in the cross table (X_Items_Categories) must exist in the Category table, and

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Foreign Key In One To Many Relationship

Feb 20, 2006

Hi
I have a one to many relationship between two MS SQL tables.
When inserting a record in the master table (primary key is autoinc) how can I get this value for setting in the foreign key details table?
TIA

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Dec 7, 2004

I have two tables and I'm trying to create a one to many relationship (master table can have many records in the details table)

I created a column in my details table with with ID of the primary key in the master table.

The primary key ID isn't inserted as a foreign key when I insert a record. I specifed the relationship in EM.

Not sure why the primary key ID isn't inserted as a foreign key into my details table?

Any help is greatly appreciated. Thanks.
-Dman100-

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Foreign Key Relationship Properties

Oct 7, 2007

Hey guys,

I would like to know what the following options means when we set a foreign key relationship between two tables and when to use them ( yes or no):

1- Check existing data on creation or Re-Enabling.
2- Enforce contraint for replication
3- Enforce foreing key contraint


Thx.

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Primary Key/foreign Key Relationship

May 11, 2007

I'm using MS SQL Server Studio Express 9.0. When selecting SQL Server Compact Edition, I'm able to create tables and primary keys with no problem. But how do I create a relationship with another table (foreign key)?

Bob K.

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Help Needed To Establish Foreign Key Relationship

Sep 28, 2007



Hi i have two tables

X and Y

X is the Parent table and Y is the child

X has gpikey char(14) and Record type char(1) as Primary key

y has Name as primary key and column xgpi char(14) which should be the foreignkey to table X

what approach should i take to establish relationship between these two tables.

gpikey of recordtype 5 is equal to value in xgpi in table y

ex: data
Table X
gpikey recordtype

123 1
2345 2
272626 5

Table Y
Name XGPI
dhdhd 272626

x and y are having one to many relationships

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Define A Relationship In Express With A Concatenated Foreign Key?

Jul 4, 2015

I'm having trouble defining a relationship in SQL Express with a concatenated foreign key.

I have 3 tables. Date, Company and Detail

Date has a PK1

Company has a PK2

Detail has a concatenated foreign Key of PK1, PK2

When I go to set the foreign key relationship in Management Studio 'Tables and Columns', it seems I can only select 1 primary key table on the left for my 2 foreign keys. How can I add 2 primary key tables to point to each FK in my detail table?

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Auto Fill In Colums Trough Foreign Key Relationship

Jun 10, 2004

Hi,

I have a table users where there is a user_id and an department column.
Also i have a table called KRS where there are the same columns, when a userid is given i want to auto fill in the departmentid,

Can someone help me with this?

Cheers Wim

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Jun 6, 2015

I want to create a table with primary key , and put relationship with second table.

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Apr 22, 2015

I have to load data into destination table, it has foreign key relation to two different tables called person table and organization table . sample data to be loaded is like

person_id organization_id
1                   Null
2                    NULL
Null                1
null               null

person table and organization table doesn't have null values in them, when I try to load this data none of them are laoded, I know either person_id or organization id having null value is failing foreign key constraint. But I want to transfer all the rows except  the ones having both nulls. how this can be achieved ?

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Apr 20, 2015

Should we have foreign key relationship between two slowly changing dimensions?

Most of the cases we talked about are about how to build an SLC, any example of trying to have two SLCs with FK relationship in a snow flake schema?

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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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Cannot INSERT Data To 3 Tables Linked With Relationship (INSERT Statement Conflicted With The FOREIGN KEY Constraint Error)

Apr 9, 2007

Hello
 I have a problem with setting relations properly when inserting data using adonet. Already have searched for a solutions, still not finding a mistake...
Here's the sql management studio diagram :

 and here goes the  code1 DataSet ds = new DataSet();
2
3 SqlDataAdapter myCommand1 = new SqlDataAdapter("select * from SurveyTemplate", myConnection);
4 SqlCommandBuilder cb = new SqlCommandBuilder(myCommand1);
5 myCommand1.FillSchema(ds, SchemaType.Source);
6 DataTable pTable = ds.Tables["Table"];
7 pTable.TableName = "SurveyTemplate";
8 myCommand1.InsertCommand = cb.GetInsertCommand();
9 myCommand1.InsertCommand.Connection = myConnection;
10
11 SqlDataAdapter myCommand2 = new SqlDataAdapter("select * from Question", myConnection);
12 cb = new SqlCommandBuilder(myCommand2);
13 myCommand2.FillSchema(ds, SchemaType.Source);
14 pTable = ds.Tables["Table"];
15 pTable.TableName = "Question";
16 myCommand2.InsertCommand = cb.GetInsertCommand();
17 myCommand2.InsertCommand.Connection = myConnection;
18
19 SqlDataAdapter myCommand3 = new SqlDataAdapter("select * from Possible_Answer", myConnection);
20 cb = new SqlCommandBuilder(myCommand3);
21 myCommand3.FillSchema(ds, SchemaType.Source);
22 pTable = ds.Tables["Table"];
23 pTable.TableName = "Possible_Answer";
24 myCommand3.InsertCommand = cb.GetInsertCommand();
25 myCommand3.InsertCommand.Connection = myConnection;
26
27 ds.Relations.Add(new DataRelation("FK_Question_SurveyTemplate", ds.Tables["SurveyTemplate"].Columns["id"], ds.Tables["Question"].Columns["surveyTemplateID"]));
28 ds.Relations.Add(new DataRelation("FK_Possible_Answer_Question", ds.Tables["Question"].Columns["id"], ds.Tables["Possible_Answer"].Columns["questionID"]));
29
30 DataRow dr = ds.Tables["SurveyTemplate"].NewRow();
31 dr["name"] = o[0];
32 dr["description"] = o[1];
33 dr["active"] = 1;
34 ds.Tables["SurveyTemplate"].Rows.Add(dr);
35
36 DataRow dr1 = ds.Tables["Question"].NewRow();
37 dr1["questionIndex"] = 1;
38 dr1["questionContent"] = "q1";
39 dr1.SetParentRow(dr);
40 ds.Tables["Question"].Rows.Add(dr1);
41
42 DataRow dr2 = ds.Tables["Possible_Answer"].NewRow();
43 dr2["answerIndex"] = 1;
44 dr2["answerContent"] = "a11";
45 dr2.SetParentRow(dr1);
46 ds.Tables["Possible_Answer"].Rows.Add(dr2);
47
48 dr1 = ds.Tables["Question"].NewRow();
49 dr1["questionIndex"] = 2;
50 dr1["questionContent"] = "q2";
51 dr1.SetParentRow(dr);
52 ds.Tables["Question"].Rows.Add(dr1);
53
54 dr2 = ds.Tables["Possible_Answer"].NewRow();
55 dr2["answerIndex"] = 1;
56 dr2["answerContent"] = "a21";
57 dr2.SetParentRow(dr1);
58 ds.Tables["Possible_Answer"].Rows.Add(dr2);
59
60 dr2 = ds.Tables["Possible_Answer"].NewRow();
61 dr2["answerIndex"] = 2;
62 dr2["answerContent"] = "a22";
63 dr2.SetParentRow(dr1);
64 ds.Tables["Possible_Answer"].Rows.Add(dr2);
65
66 myCommand1.Update(ds,"SurveyTemplate");
67 myCommand2.Update(ds, "Question");
68 myCommand3.Update(ds, "Possible_Answer");
69 ds.AcceptChanges();
70

and that causes (at line 67):"The INSERT statement conflicted with the FOREIGN KEY constraint
"FK_Question_SurveyTemplate". The conflict occurred in database
"ankietyzacja", table "dbo.SurveyTemplate", column
'id'.
The statement has been terminated.
at System.Data.Common.DbDataAdapter.UpdatedRowStatusErrors(RowUpdatedEventArgs rowUpdatedEvent, BatchCommandInfo[] batchCommands, Int32 commandCount)
at System.Data.Common.DbDataAdapter.UpdatedRowStatus(RowUpdatedEventArgs rowUpdatedEvent, BatchCommandInfo[] batchCommands, Int32 commandCount)
at System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping)
at System.Data.Common.DbDataAdapter.UpdateFromDataTable(DataTable dataTable, DataTableMapping tableMapping)
at System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable)
at AnkietyzacjaWebService.Service1.createSurveyTemplate(Object[] o) in J:\PL\PAI\AnkietyzacjaWebService\AnkietyzacjaWebServicece\Service1.asmx.cs:line 397"


Could You please tell me what am I missing here ?
Thanks a lot.
 

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Mar 25, 2006

How can I create a one-to-one relationship in a SQL Server Management Studio Express Relationship diagram?

For example:
I have 2 tables, tbl1 and tbl2.

tbl1 has the following columns:
id {uniqueidentifier} as PK
name {nvarchar(50)}

tbl2 has the following columns:
id {uniqueidentifier} as PK
name {nvarchar(50)}
tbl1_id {uniqueidentifier} as FK linked to tbl1.id


If I drag and drop the tbl1.id column to tbl2 I end up with a one-to-many relationship. How do I create a one-to-one relationship instead?

mradlmaier

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Oct 14, 2015

I have four tables with relationships as shown. They have a circular relationship and so one of the relationships is forced to be inactive.

   Operation (Commodity, OperationKey)   ==========> 
Commodity (Commodity)
                      /                                                                        
/
                       |                                                                         
|
   Advice (OperationKey)       ====== (inactive)=======>
Operation Commmodity (Commodity, OperationKey)

I have the following measure:

Advice No. Commodity:=CALCULATE (
COUNTROWS ( 'Advice' ),
USERELATIONSHIP(Advice[OperationKey],'Operation Commodity'[OperationKey]),
operation
)

However, the userelationship function does not override the active relationship between Operation & Advice and so the measure is limited to Advices directly filtered by the Operation table.

If I delete the relationship between Operation and Advice, then the measure works as expected i.e. Operation indirectly filters Operation Commodity which filters Advice.

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Feb 4, 2007

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Feb 22, 2007

Hello
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 example:
 Transaction table: id, reference
attribute table: attributeid, attribute
 transactionAttribute: attributeid, transactionid
 Example dat
 Attribute table contains: 1 Red, 2 Blue, 3 Green
Transaction table contains: 1 one, 2 two, 3 three
transactionAttribute contains: (1,1), (1,2), (1,3), (2,3), (3,1)
 
If I pass in Red, Blue, Green - I need to be returned "one" only
If I pass in Red - I need to be returned "three" only
If I pass in Red, Green - nothing should be returned as it doesn't EXACTLY match the filter criteria
 
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Aug 3, 2007

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 When I try to set a relationshop between gamegenre and game I'm getting this error:
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Aug 12, 2002

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Jul 18, 2006

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May 19, 2007

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Oct 10, 2005

Hi,Do you guys know what's wrong with a one-to-one relationship?The reason I want to make it like this is that at the very end of the chain,the set of keys is huge. I want to limit the number of columns to be thekey. i.e. the [company] table has 1 column as the key. The [employee]table will have 2 columns as the key.e,g,If I add a [sale] table to the [company]-[employee] relationship, the thirdtablewill have 3 columns as the key -- "company id", "employee id", and "saleid".(e.g.)I have a company with many employees and computers. But instead of classifyall these, I just want to call all these as an entity. A company is anentity. An employee is just another entity. etc.So, instead of a one-to-many:[company]---*[employee]---*[sale]||*[computer]I make it one-to-one.[entity]---*[entity]If I want to know the name and address of the entity "employee", I will havea 1-to-1 table [employee] to look up the information for this employeeentity.[entity]---*[entity]||[company]||[employee]||[computer]||[sale]--[color=blue]> There is no answer.> There has not been an answer.> There will not be an answer.> That IS the answer!> And I am screwed.> Deadline was due yesterday.>> There is no point to life.> THAT IS THE POINT.> And we are screwed.> We will run out of oil soon.[/color]

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Nov 17, 2007

Hi.
I get this error when i try to create a relationship in a db diagram (sql 2005)
"'tblActivedir' table saved successfully
'tblClient' table
- Unable to create relationship 'FK_tblClient_tblActivedir1'.
Introducing FOREIGN KEY constraint 'FK_tblClient_tblActivedir1' on table 'tblClient' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.
Could not create constraint. See previous errors."


What i have is 2 tables.
1 named client
1 named activedir

In the client table the columns i want to bind with activedirtable are FR1 and DC1
I want to bind them in the ID of the activedir table (both, in different fk relationships) so that they get the id of activedir.
Fr1 has an fk relationship with activedir (pk is activedir' id)
and DC1 exactly the same in another fk.
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Thanks.

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Nov 2, 2006

I am trying to create a 1:1 relationship, but not primary key to primary key. In table 1 I have a uniqueidentifier as a primary key. In table 2 I have an int as the primary key and a column that takes the uniqueidentifier from table 1. Everytime I drag and drop the relationship line and link table 1 to table 2 it creates a 1:N relationship: ie. tbl1.primarykey links to tbl2.column2. So I'm not linking primary key to primary key however I still want a 1:1 relationship.



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Jan 24, 2008

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Apr 22, 2007

This is the message that i get when trying to assign keys when creating diagrams in visual express:



'tbh_Polls' table saved successfully
'tbh_PollOptions' table
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The ALTER TABLE statement conflicted with the FOREIGN KEY constraint "FK_tbh_PollOptions_tbh_Polls". The conflict occurred in database "C:USERSSTICKERDOCUMENTSMY WEB SITESPERCSHARPAPP_DATAASPNETDB.MDF", table "dbo.tbh_Polls", column 'PollID'.



PollID is my primary key in tbh_Polls

And PollID is in tbh_PollOptions table



No matter what I do, I get this message, I'm Lost!

Help plz.

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May 19, 2008

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Code Snippet


Dim.Code=Fact.DimCode1 OR Dim.Code=Fact.DimCode2



Is it possible to do this ?


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Nov 23, 2007

Hi.
(Sorry if i am not posting this in the right forum)

well i am learning to create a small software and have come up with four tables which are as follows;


Client
date
<!--[if !vml]--><!--[endif]-->client_id
name
address
contact_num

Smoking
smoking_id
client_id
meas_arm
meas_neck
meas_shoulder
Color_code
description
Trousers
trousers_id
client_id
meas_leg
meas_hips
meas_waist
color_code
description

Shirt
shirt_id
client_id
meas_arm
meas_neck
meas_shoulder
color_code
description
My question
Is it possible to have a relationship linking one single table to other several one.
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