One To One Relationship
I created 2 tables with one to one relationship. if I add a record in
table A, how does table B record get created? Does SQL do this
automatically because it is one to one relationship? or do I need to
create a trigger? if i need a trigger, how do I get the ID of new
record to create the same ID in table B?
thanks for any help.
Joe Klein
View Complete Forum Thread with Replies
Related Forum Messages:
How Can I Create A One-to-one Relationship In A SQL Server Management Studio Express Relationship Diagram?
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
View Replies !
How To Set A Relationship Here?
How to create a relation between gf_game and gf_gamegenre here? gf_gamegenre is responsible for the relation between a game and it's genre(s). The relationship between gf_genre and gf_gamegenre worked. (http://img361.imageshack.us/my.php?image=relationzl9.jpg) When I try to set a relationshop between gamegenre and game I'm getting this error: 'gf_game' table saved successfully'gf_gamegenre' table- Unable to create relationship 'FK_gf_gamegenre_gf_game'. The ALTER TABLE statement conflicted with the FOREIGN KEY constraint "FK_gf_gamegenre_gf_game". The conflict occurred in database "gamefactor", table "dbo.gf_game", column 'gameID'. Thanks for any help!
View Replies !
Need Help With Relationship
I have this situation in my DB: tblClients, ClientID(pk) 1---M tblDocuments, DocumentID(pk), ClientID(fk), DocumentTypeID M---1 tblDocumentTypes, DocumentTypeID(pk)(this is a lookup table) If a client is deleted I want to cascade and delete that clients documents from tblDocuments. When I set the relationships delete and update to cascade on tblDocuments it is also set to cascade on the lookup table (tblDocumnetTypes). Why is this and how do I make it stay the way I want it?
View Replies !
Many To One Relationship
Hello I have need to write a query that I can pass in a bunch of filter criteria, and return 1 result....it's just ALL of the criteria must be matched and a row returned: 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 If anyone's able to help that would be wonderful! Thanks, Paul
View Replies !
One-One Relationship
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]
View Replies !
ER Relationship
For a weak relationship, will 0 and 1 in the ER diagram represent partialand total participations of the 2 entities sets respectively or vice versa.
View Replies !
One To One Relationship
Can anyone provided insight on how to create a one-to-one relationship between SQL tables? Every time I try to link two tables that should be one-to-one, the link says one-to-many. How can I specify one-to-one when SQL Server automatically thinks it is a one-to-many? Thanks, Kellie
View Replies !
Fk Relationship
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.
View Replies !
ERD 1:1 Relationship
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. How do I do that? Thanks in advance.
View Replies !
One-To-Many Relationship
SQLServer 2005 - I have two tables. One has a field defined as a Primary Unique Key. The other table has the same field, but the Index is defined as non-Unique, non-clustered. There is no primary key defined on the second table. I want to set up a one-to-many relationship between the two, but am not allowed. This should be simple. What am I doing incorrectly?
View Replies !
Relationship Between A AND ( B OR C )
I have a fact table with 2 fields : "Dim Code 1" and "Dim Code 2" that I want to link with a Dim table. I don't want to create two dimensions Dim1 and Dim2 but only one dimension with something like : Code Snippet Dim.Code=Fact.DimCode1 OR Dim.Code=Fact.DimCode2 Is it possible to do this ? Thanks in advance
View Replies !
ERD Relationship
hi, I've draw the ERD for my database in management studio express but I have a question regarding the relationship between tables. How can I define the cardinality of the relationship between two tables? by default in managemet studio is it the relationship is only one-to-many relationship?
View Replies !
Relationship
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. For example i wanted to relate the field client_id from table client which is the primary to tables shirt,trousers and smoking with the client_id field which is the foreign key ? thanks
View Replies !
Key Relationship
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 - Unable to create relationship 'FK_tbh_PollOptions_tbh_Polls'. 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. Thanks
View Replies !
One To One Relationship
How do I create a one to one relationship in a SQL2005 Express database? The foreign key needs to be the same as the primary key so it can't just increment to the next number.
View Replies !
FK - PK Relationship Problems
HiI have a FK to PK relationship problem. I have 2 tablesQuickLinks<PK>QuickLinkItems<FK>So what I had this is I made a relationship. I put in the relationship options this. I turned off "enforce FK contraint" and I put for the delete rule "cascade". So I turned off the FK contraint since I don't think with it on the cascade delete would work. So now I tried it out. I launched my website and tried to delete something but no cascading happened. I then went to MS SQL and added some new values in and tried to delete it there(by clicking on the column and hitting delete). No cascadeing happened. What am I doing wrong?
View Replies !
What Relationship To Use Between These Two Table?
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!
View Replies !
Simple DB Relationship
hi there, after a lot of fussing about i found it would be a lot easier to use an SQLDS and a gridview to display my data rather than code it. However i cant for the life of me work out how to replace some of the numbers (IDs) with their accompanying names. so i have a QTY which is an INT and a Location1 which is an INT in tbl_stock_location and in tbl_locations i have the appropiate 1 = shop etc this is what i came up with for my string SELECT tbl_stock_part_multi_location.stock_part_multi_location_ID, tbl_stock_part_multi_location.stock_ID, tbl_stock_part_multi_location.Description, tbl_stock_part_multi_location.Qty1, tbl_stock_part_multi_location.Location1, tbl_stock_part_multi_location.Qty2, tbl_stock_part_multi_location.Location2, tbl_stock_part_multi_location.Qty3, tbl_stock_part_multi_location.Location3, tbl_stock_part_multi_location.Qty4, tbl_stock_part_multi_location.Location4, tbl_stock_part_multi_location.Qty5, tbl_stock_part_multi_location.Location5 FROM tbl_stock_part_multi_location INNER JOIN tbl_location ON tbl_stock_part_multi_location.Location1 = tbl_location.Location_ID AND tbl_stock_part_multi_location.Location2 = tbl_location.Location_ID AND tbl_stock_part_multi_location.Location3 = tbl_location.Location_ID AND tbl_stock_part_multi_location.Location4 = tbl_location.Location_ID AND tbl_stock_part_multi_location.Location5 = tbl_location.Location_ID WHERE (tbl_stock_part_multi_location.stock_ID = @stock_ID)" I used the query builder for this but it just dosnt seem to work and throws an error at me. Any help would be great!
View Replies !
How To Add Data Into A PK To FK Relationship?
HiI have 2 tables one is called QuickLinks and another called QuickLinkItemsQuickLinksQuickLinkID<PK> UserID QuickLinkName-------------------------- ----------- ------------------------1 111-111-111-111 QuickLink12 111-111-111-111 QuickLink23 222-222-222-222 QuickLink1 QuickLinkItemsQuickLinkID <FK> CharacterName CharacterImagePath---------------------- ------------------------------- ---------------------------------------- 1 a path11 b path22 d path32 e path43 a path14 b path 2 So thats how I see the data will look like in both of these tables the problem however I don't know how to write this into Ado.net code. Like I have made a PK to FK relationship on QuickLinkID(through the relationship builder thing). I am just not sure how to I do this. For the sake of an example say you have 5 text boxes 2 text boxes for inserting the character names and 2 text boxes for inserting the CharacterImagePath. Then one for the Name of the QuickLink. So how would this be done? Like if it was one table it would be just some Insert commands. Like if this was all one table I would first get the userID from the asp membership table then grab all the values from the textBoxes and insert them where they go to and the QuickLinkID would get filled automatically. The thing that throws me off is the QuickLinkID since it needs to be the same ID as in the QuickLink table. So do I have to first insert some values into the QuickLink table then do a select on it and grab the ID then finally continue with the inserts Into the QuickLinkItems table? Or do I have to join these tables together?Thanks
View Replies !
Join One To Many Relationship
hi all geeks, I have a problem regarding joins. I have 2 tables, Customer ( Customer_code, Agent1, Agent2, Agent3) Agent( Agent_Code, Agent_name) and data is like this: Customer_code Agent1 Agent2 Agent3 1 1 2 3 2 2 3 4 3 1 4 3 Agent Table Agent_Code Agent_name 1 X 2 Y 3 Z 4 P 5 Q Now I want to retrieve all customer_code with their corresponding agent names, like 1 X Y Z2 Y Z P3 X P Z, any suggestions please,thanks a lot.
View Replies !
Relationship Diagram
Hi there, I just set up my AppData and i'm trying to connect the Membership to a tbl_Profile that i created.I notice there's an application_id and a user_id which are uniqueidentifiers. I've been trying create a relationship to tbl_Profile's user_id column but it won't let me saying it's not compatible. Am i suppose to set tbl_Profile's user_id column to int or uniqueidentifier? I've tried both and it won't let me... THanks!
View Replies !
Help With Foreign Key Relationship
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
View Replies !
Table Relationship
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
View Replies !
Optional Relationship
Hi, how can i make optional relationship? for example: In table A, there is column 1, column 2, column3. In table B, there is column 4, column 5 and column 6. column 1 and column 2 are primary keys for table A and table B. The relationships between table A and table B are column 2 and column 5; column3 and column 6. but optional (ie. when data exists in column 2, then column3 is null) how can i set the relationship? because one of the columns data is null each time, error always occurs.
View Replies !
Relationship To UserId
Hi there everyone, this is my first post so go easy on me :) Basically I am trying to get my database to copy the value in the UserId (unique identifier field) from the aspnet_Users table to a foreign key UserId in a table called userclassset. I have made this field the same datatype and created a relationship between the two. Unfortunately, when I add a user using the ASP.Net configuration tool it does not automatically copy this value into my own custom table. I have noticed it is however automatically copied into the aspnet_Membership table. Any pointers on how to solve this would be great! Thanks :)
View Replies !
Trying To Create A Relationship
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
View Replies !
Delete Relationship?
How do I delete a relationship between tables in SQL Server 7.0?I previously had a relationship between two tables, but I renamed the fieldand table of one of the tables and the old relationship still points to theold field name and table. How do I remove the defunct relationship?It doesn't show in my diagram because the old table no longer exists (wellit does but it's been renamed).
View Replies !
Strange FK Relationship - How, And Is It Right?
Hello all,I have a scenario in which there are three tables, A, B and C. A and Bhave PK columns, both are of the same type. C has a FK column, of thesame type as the PK columns of A and B, but the values in it should beeither in the PK column of A or in the PK column of B...I figured out I could do this by creating a check constraint along witha user defined function to make sure the master table (either A or B)has a corresponding row before a row is inserted or updated into C. ButI don't know how to handle deletions from A and B: how to make sure thecorresponding row in C is deleted first. Any help would be greatlyappreciated. Thanks.Now the more important question: C has 6 columns, and all these columnsare common to both A and B. That is, the common columns of A and B havebeen moved to a new table C. Apart from this, there is no purpose ormeaning to having the table C; if it were not for C, A and B would'vehad 6 additional columns. I know such factoring is common in the OOworld, but is it right in the RDBMS world? What else should've beendone? Any thoughts/suggestions? Thanks a lot in advance.- Ramesh
View Replies !
Foreign Key Relationship
HiIm a sql newbie , and have created two tables with a foreign keyrelationship.How do i insert into these tables. If i insert into the primary tablewill the foreign key field in the second table be automaticly updatedby ms sql server ?
View Replies !
Retrieve First Row Only In Many-to-many Relationship
I have a db with three tables - books, sections, and a joining table.The normal way of getting a many to many relationship (i.e. one bookmay belong to many sections, and one section may contain many books)I want to extract the data with a single row for each book so that Ionly retrieve the first section description for any book. (e.g. title,author, section, description)Structure as follows:tbl_bookbook_id, title, author, description etc...tbl_sectionsection_id, section_desctbl_book_sectionbook_id, section_idDBA is away and I can't figure this out at all...any help gratefullyreceived.
View Replies !
Is There Such A Thing As Too Many Relationship?
Hi,I have a corporate database with about 60 different tables that spansmanufacturing, accounting, marketing, etc.It is possible, but unwieldy, to establish a relationship for eachtable in the entire database through critical fields like customer_idor product_id.But should I do that?My question is: Is there such a thing as too many relationships? CanI establish referential integrity via relationships with criticaltables like Accounting, but leave the rest unconnected and simply useJOINS in my business code?Thanks,HC
View Replies !
Foreign Key - Relationship
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-
View Replies !
Query Relationship
Hi all I have a question, In my view I have two tables linked together for the users, my issue is that I want them to see one record so they can get the proper total amount of records. The main table is reports and the child table is subjects. How do I make it so that they see one record from the reports table, because if there is more then one subject linked to a reports number which is the primary key, they will see more then one report number. Does that make sense??
View Replies !
Enforcing A Relationship
I'd like to create a relationship between two tables in sql server 2005, where a User can be a Partner and a Partner must be a User. So it 0-1 and 1-1. How do I enforce this relationship? I will also be creating a view from this, will there be any problems when inserting data into the view? I might aswell add that I'm actually working on asp.net's new membership and roles, so I don't want to change the default tables.
View Replies !
Problem With Relationship
Hello everyone, I'm trying to keep the data integrity in a database I'm creating (see diagram (http://www.gnomeslab.com/DataBaseDiagram.png)). I've already created all the relations. The problem is that when I add the cascading effect to the relation FK_Usergroup_Role_RoleId_Application_Role_Id SQL Server, naturally, throws me a multiple paths error. My question is how can I work arround this? Any design change suggestion? The only way it to preserve the integrity programmaticaly? Thanks in advance
View Replies !
Relationship Of Tables Pls
:rolleyes: can u send me deails for establish relationship of tables i know namw of then but i need them by examples ans defination as 1 simple 2 complex 3 muliple u can send me ink if u get fron google also thanks bye
View Replies !
Find A Relationship
Hi, how can i find if a field in one table has a relationship to a field in another table and how can i get additional inforation about this relation? thanks
View Replies !
SQL Relationship Question
Hello, First off, my background is not sql strong. I come from the old "xbase" world and would classify myself as a sql novice. What I am trying to do is to determine how to build a solution to this problem. Here is what I have. Table: Info Field: Info_Male_Weight - tinyint Field: Info_Female_Weight - tinyint Field: ..... Table: Weight Field: WeightID - tinyint (primary key) Field: WeightRange -varchar(7) Sample Data: Table: Info Info_Male_Weight Info_Female_Weight 3 1 4 2 6 1 Table:Weight WeightID WeightRange 1 100-110 2 110-120 3 120-130 Here is the question. How do I relate these? There is nothing unique in the storing of the data in the info table. Basically this is just a lookup table for me. Am I missing some basic/complex theory? Thanks for any help. dave
View Replies !
Relationship Diagram
Hi, Can anyone tell me in which issue of SQL magazine is the relationship diagram of system tables published? Can i see it online somewhere? TIA.
View Replies !
Split Relationship ?
What I have is a table with a primary key. Then I have 5 other tables with a relating key. No problems there. I need to create a relationship with the primary table (primary) key who's data field is 25 charachters. I need to parse that out and have 3 charachters go to one, 2 to the other and so on. I don't know how to do that, can you help?
View Replies !
|
TRACKER
