Create Table With Many-to-many Relationship...
Dec 5, 2006
Hi, I come back again.
Can anyone help me to create table with many-to-many relationship. Here is my three tables
tbl_Networks
(
NID int identity(1,1) primary key,
NetworkName nvarchar(256)
)
tbl_Categories
(
CID int identity(1,1) primary key,
CateName nvarchar(256),
NID int
)
tbl_Sim
(
SID int identity(1,1) primary key,
NID int,
CID int,
NameOfSim nvarchar(256)
)
My problem is 1 value in tbl_Sim may have multiple values in table tbl_Categories and vice versal. And I don't know how to organise them
So I need some help...
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May 30, 2007
Hi, all experts here,
Thank you very much for your kind attention.
I am trying to create a new mining structure with case table and nested table, the case table (fact table) has alread defined the relationships with the nested table(dimension table), and I can see their relationship from the data source view. But why the wizard for creating the new mining structure showed that message? Why is that? And what could I try to fix it?
Hope it is clear for your help.
Thanks a lot for your kind advices and I am looking forward to hearing from you shortly.
With best regards,
Yours sincerely,
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May 8, 2006
hi..
I would like to create a view for two tables which have a one-to-many relationship.
Code:
Table: Supplier
Supp_ID
1
Table:Supplier_category
Supp_ID,StockCategoryID
1,56
1,57
1,90
How can i create a view that has columns like below:
Supp_ID, Stock
1,[56,57,90]
Thanks in advance.
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May 16, 2006
I am fairly new to SQL and I am currently trying to createa SQL table (using Microsoft SQL) that has a recursiverelationship, let me try to explain:I have a piece of Data let's call it "Item" wich may again contain onemore "Items". Now how would I design a set of SQL Tables that arecapable of storing this information?I tried the following two approaches:1.) create a Table "Item" with Column "ItemID" as primary key, somecolums for the Data an Item can store and a Column "ParentItemID". Iset a foreign key for ParentItemID wich links to the primarykey"ItemID" of the same table.2.) create separate Table "Item_ParentItem" that storesItemID-ParentItemID-pairs. Each column has a foreign key linked toprimary key of the "Item" Column "ItemID".In both approaches when I try to delete an Item I get an Exceptionsaying that the DELETE command could not be executed because itviolates a COLUMN REFERENCE constraint. The goal behind these FK_PKrelations is is that when an Item gets deleted, all childItems shouldautomatically be deleted recursively.How is this "standard-problem" usually solved in sql? Or do I inned toimplement the recursive deletion myself using storedprocedures or something ?
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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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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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Aug 15, 2005
Here is the error I am getting'role' table saved successfully'users' table- Unable to create relationship 'FK_users_role'. ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]ALTER TABLE statement conflicted with COLUMN FOREIGN KEY constraint 'FK_users_role'. The conflict occurred in database 'raintranet', table 'role', column 'role_id'.table rolerole_id intname varchar 50table usersusers_id introle_id inTrying to get table.role_id to be related to role.role_idAny help would be appreciated
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Mar 26, 2006
hello all,
I am new to SQL server and dont have a clue on how to create a one-to-one relationship
in sql server2000. Say, I have a table 'A' with a PK <customer_id> and another table 'B' with a PK <order_id>. Now to define a one-to-one relation between them how to do that?
thanks in advance.
-tanveer
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Mar 28, 2008
Hi - SQL beginer here....
SQL2005
I have a table dbo.server
Compid - 1
Name PK - Server1
Make - HP
etc...
I have just created a new table dbo.ProcessorInfo with the following columns:
Name
BrandName
ProcessorCoreCount
etc....
This table will have more than 1 record for each name:
Server1 Intel 2
Server1 Intel 2
Server2 Intel 1
Server2 Intel 1
and so on.
What is the best way to relate the name in dbo.server and name in dbo.ProcessorInfo so this is a one to many? Obviously I can't set the name column as a PK as I have more than 1 record of the same value in it.
Help much appreciated!
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Sep 18, 2006
How do I create a relationship between two tables when the two columns that should connect each table have different names?
i.e. Table Person Column Name < -- > Table Employee Column Person Name
The two columns actually contain the same data type but different field name and size. I know this involves a series of steps. What are they? Could you please include some sample code.
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Apr 9, 2007
Hi
I have two database as Malathi,Indoo
In Malathi database i have
Employee Table AS
----------------------
Eid Int (PK)
Enam varchar(50)
In Indoo Database I have
Job table as
Eid int (FK)
Jid Int (PK)
Now how can i create relation b/w two tables of different database
Any One can help for this query
Malathi Rao
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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.
So i want both columns to comunicate with activedir.
If p.e. activedir has 3 elements (a,b,c) when i delete element a then werever FR1 or DC1 have this element(binded to it's id) then the element will also be deleted (id of the element) from both FR1 and DC1
I don't want to set Delete and Update action to none because i want the element changed or deleted from activedir, to do the same on Fr1 or DC1 or both.
Any help?
Thanks.
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Nov 18, 2006
Hi Folks,
When I try to create a Relationship between two Tables I find the Relationship is always created from the Table I start with to itself.
I seem to have to select a Table to enable the Create Relationship option, and then when I 'Add' it creates a recursive Relationship to that Table.
I guess it must be possible to do what I am trying to do ?
I'd appreciate any advice.
Thanks.
Barry
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Jun 6, 2007
Hi,
I have metadata that stored my table structure and relationship. I would like to know is it possible to create table relationship programatically? Any sample?
Thank you
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Jul 29, 2015
I have got a table as follow:
CREATE TABLE [dbo].[NozzleAllTbl] (
[Id] INT IDENTITY (1, 1) NOT NULL,
[nBDId] INT NULL,
[nShellId] INT NULL,
[nTDId] INT NULL,
CONSTRAINT [PK_dbo.NozzleAllTbl] PRIMARY KEY CLUSTERED ([Id] ASC),
CONSTRAINT [FK_dbo.NozzleAllTbl_dbo.NozzleTbl_nBDId] FOREIGN KEY ([nBDId]) REFERENCES [dbo].[NozzleTbl] ([Id]),
CONSTRAINT [FK_dbo.NozzleAllTbl_dbo.NozzleTbl_nShellId] FOREIGN KEY ([nShellId]) REFERENCES [dbo].[NozzleTbl] ([Id]),
CONSTRAINT [FK_dbo.NozzleAllTbl_dbo.NozzleTbl_nTDId] FOREIGN KEY ([nTDId]) REFERENCES [dbo].[NozzleTbl] ([Id])
);
NozzleTbl is another Table.At the moment I am referencing only one NozzleTbl thrice. But how can I reference a collection of NozzleTbl thrice?So that in the c# code I could access the collections as:
NozzleTbl_1 = NozzleAllTbl.NozzleTbls[0]
NozzleTbl_2 = NozzleAllTbl.NozzleTbls[1]
...
NozzleTbl1_1 = NozzleAllTbl.NozzleTbls1[0]
NozzleTbl2_1 = NozzleAllTbl.NozzleTbls2[0]
....
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Mar 19, 2008
Hi,
I need help in creating a trigger before delete. The trigger should be in such a way that it should display a message, if there is any relationship with other table.
For example I have a table with employee details which have empid as primary key. I have another table with employee salary details where empid is foreign key. The trigger should check the relationship with these two tables. If I try to delete an emploeyee from employee details table and if there is a relationship of that employee with the salary table then the trigger should print a message. If there is no relationship then the trigger should perform the deletion.
I want to create a trigger like this.
Please help!!!!!!!!!!!!!!!!
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Jun 16, 2008
Hi,
Is it possible to create a relationship between to tables in a deferent databases and How to do it from SQL Server Management Server!?
Thanks.
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Jan 13, 2004
Hi, I am trying to create a create for two table A and table B which have no relationship each time. For TableA, there are 3 columns like ID, APoints1, APoint2. For Table B, there are also 3 columns as ID, Qty, BPoints. There is no internal relationship for these two tables. But there may be same ID inside A and B for some records. Now I want to create a datagrid for displaying the information as :
ID, Sum(A.APoints1 + A.APoints2) - Sum(B.Qty * B.BPoints) WHERE A.ID = B.ID
Please Notice that I can't use directly SQL script as following from table A and table B because there is no relationship for Table A and Table B, otherwise the recult set would be wrong:
Select A.ID, Sum(A.APoints1 + A.APoints2) - Sum(B.Qty * B.BPoints) WHERE A.ID = B.ID group by A.ID
May I know is there solution for it?
Thank you very much!
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Apr 10, 2007
Dear sir or madam
I have a problem related to create or show relationship digram in sql server 2005. Especially, I want to show relationship diagram that I established in sqlserver 2000 in sql server 2005 but I can't and I don't how to do it.
I look forward to hearing.
Thank you in advance!
Best regard,
seyha moth
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Nov 3, 2015
I am bring two fact tables and a Date Dim into my Power Pivot model. I try to create relationship where but Power Pivot just reverses them. When I create the relationship I get an info icon warning me it will be changed.Why can't I create a one to many relationship with fact table on many side and dimension on one side?Power Pivot will not let me mark my dimCalnder as a date table either. My date dim has surrogate key, year, month and monthlongname columns only...
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May 14, 2008
i have a table where the feilds are
1.fromtable
2.fromfeild
3.fromcategory
4.totable
5.tofeild
6.tocategory.
i have write a stored proceduer for creating 2 relationship between fromfeild & tofeild from the same value in from category & in tocategory.
there r around 465 records in a table.
so anyone can comeout for solution of this.
hope soon i get a solution for this.
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May 25, 2015
I have two tables, Inspections and InspectionDetails. The InspectionDetails only contains information if an inspection found violations. Some inspections don't look for violations so inspectiondetails would have no entry.How can I create a 0-Many relationship between these two tables?Inspection Table has : InspectionID, InspectionDate, TypeofInspection, Inspector..InspectionDetail Table has : DetailID (an auto-incrementing identity column), InspectionID, SectionViolated, ViolationDescription, InspectorNotes.
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Jul 23, 2005
I need to create a relationship between a local table and tables on alinked server. I used the design table wizard and selected therelationship property wizard. In the reslationship property wizard,the tables that I need to get the keys from in the linked server do notshow up. Is there a way to do this, or I simply don't have enoughpermission to tables in the linked server. On the local server, theSecurity tab of linked server property has Local Loging "sa", RemoteUser "sa" and Remote Password "****". Thanks for your help.
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May 12, 2014
I would like to create a auto relationship between tables.
Currently I am using Northwind DB with tables (Orders, OrderDetails, Customers)
Orders ( OrderId, Customerid)
OrderDetails(OrderId)
Customers(CustomerID)
Now, if the user wants to generate a relationship automatically based on SAME FIELD Names.
What is the approach?
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Jul 31, 2014
I have two table studenTtable and courseTable which is each student take more than one course . 1:M...for example Student1 take 2 courses (C1 , C2). Student2 take 3 courses (C1,C2, C3).I need to create a table/View that contain student information from StudentTable plus all the courses and the score for each course from CoursTable in one row.
for example Row1= Student1_Id ,C1_code ,C1_name ,C1_Score ,C2_code,C2_name ,C2_Score Row2= Student2_Id,C1_code, C1_name,C1_Score,C2_code ,C2_name ,C2_Score , C3_code,C3_name,C3_Score
and since Student one just have two courses , I should enter NULL in 'Course 3 fields'.My Struggle is in the insert statement I tried the following but it show an error
Insert Into Newtable ( St_ID, C1_code,c1_name, C1_Score ,C2_code ,C2_name,C2_score,C3_code ,C3_name,C3_score)
Select (Select St_ID from StudentTable) , (Select C_code,c_name,c_Score from Coursetable,SudentTable where course.Stid =Studet.stid) , (Select C_code,c_name,c_Score from course ,student where course.Stid =Studet.stid ), (Select C_code,c_name,c_Score from course ,student where course.Stid =Studet.stid );
I'm fully aware that the New table/View will break the rules of normalization ,but I need it for specifc purpose.I tried also the PIVOT BY functionality but no luck with it .I also tried writing a code using Matlab (because it is high level sw that it is easy to learn for people not expret in programming as me) but didn't know how to combine the Student and Courses Matrices in my loop.
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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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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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Apr 5, 2007
Hello, I created some SQL 2005 tables using Microsoft SQL Server Management Studio. I need to get the script code of those tables. I was able to do that by right clicking over each table. But how can I get the code for the relationships between the tables? Can't I create relationships between two tables by using T-SQL? Thanks, Miguel
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Feb 7, 2008
Hi I have two tables:
1.) Operator-OperatorID{PK, int, not null}-OperatorName{varchar(100), not null}-Enabled{bit, not null}-PasswordChange{bit, not null}-BirthDate{datetime, not null}
2.) Password-PasswordID{PK, int, not null}-Password{varchar(50), not null}-ExpirationDate{datetime, not null}
I'm not sure how to design and layout these two tables. The layout of these two tables is completely flexible as the application has not been deployed. I'm open to any good suggestions.
For each Operator I want to stored up to 3 previous passwords plus their current password. The password change field is so that if the operator's password expires or gets reset, they will be forced to enter a new password. This is a simple internal company application, so password encrypting is not necessary. The ExpirationDate indicates the date that the password will expire.
Hope to hear from someone soon! Thank you!
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Apr 11, 2004
Why is it not possible to define more than one relationship per table?
i have a primary table that i would like to cascade deletes to 2 other foreign tables in 2 separate relationships. why can't i do this and what are my alternatives?
thank you
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Sep 19, 2005
i ve got a database that has a table...that table has a relationship between its primary key,and another field,actuelly i did it for doing menus and sub menus,so each menu has an ID say menuID and it has DEPTH and parentID which is the menuID of the parent...the problem is that i can not use "Cascade update Related Fields" or "Cascade Delete Related Records" which are really necessary ...for example when deleting parent ,not to have a child lost :)i hope i ll have an answer soon,and thanks in advancedPS: i am using MSSQL 2000 evaluation
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Jun 10, 2006
We have two tables. Users and Projects and there is a many-to-many relationship.Ex. A user can be assigned into multiple projects.For the relationship table, should the table name be UserProjects or ProjectUsers?Also should it be singular or plural? (ex. UsersProjects or ProjectsUsers)?
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Feb 27, 2008
Hello,
I have 3 tables: Articles, ArticlesTags and Tags.
ArticleTags relate Articles and Tags records.
When I try to delete a record in Tags I get the following error:
The DELETE statement conflicted with the REFERENCE constraint
"FK_ArticlesTags_Tags". The conflict occurred in database "MyDB", table "dbo.ArticlesTags", column 'TagID'.
The statement has been terminated.
What am I doing wrong?
Here is how I am creating my tables:
create table dbo.Articles
(
ArticleID uniqueidentifier not null
constraint PK_Article primary key clustered,
Body nvarchar(max) not null
)
create table dbo.ArticlesTags
(
ArticleID uniqueidentifier not null,
TagID uniqueidentifier not null,
constraint PK_ArticlesTags
primary key clustered (ArticleID, TagID),
constraint FK_ArticlesTags_Articles
foreign key(ArticleID)
references dbo.Articles(ArticleID)
on delete cascade,
constraint FK_ArticlesTags_Tags
foreign key(TagID)
references dbo.Tags(TagID)
)
create table dbo.Tags
(
TagID uniqueidentifier not null
constraint PK_Tag primary key clustered,
[Name] nvarchar(200) not null
)
Basically, what I need is:
1. If an Article is deleted then:
> Delete all records for that Article in ArticlesTags
> Don't delete any Tag in Tags.
2. If an Tag is deleted then:
> Delete all records associated with it in ArticlesTags.
> Don't delete any Article in Articles.
What am I missing?
Thanks,
Miguel
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