Add A Foreign Key From A Table In Another Database Connection?
Jan 21, 2011
I have set up a ASP.net MVC application which uses the default forms authentication. It uses the ASPNETDB.mdf like shown here:
I then set up another database connection which is similar to the NerdDinner.mdf file above.
I have a post that belongs to a user. It has a UserId value which needs to be a foreign key to the information in ASPNETDB.mdf. When I go to add a foreign key, I can only see information with regards to the table I made. How do I go about doing this?
I have a requirement to have a multiline textbox that accepts any text from any language and stores this into the database for later use. I am using Linq with ASP .NET 3.5 with a SQL Server 2005 database.
I have a app that records some jobs and those jobs can have notes attached therefore i connected the table with a foreign key, my notes to a Job.
in the details view of the job i allow the user to view the jobs by sending the id and fulling all the notes that match the id in the index view for the notes table. in the list of notes i have a action link to create a new note, here i sent also the id of the job to the create action of the control and try to insert that intot he note JobId to make the reference. I get this error and the note is not created. the note creats from code but not via the note controller creat action.
i get this - An error occurred while updating the entries. See the inner exception for details. below is the create action in the note controller
public ActionResult Create(int id)
{ // var newnote = db.Jobs.Include("StatusNotes").Single(j => j.JobId == id);[code]...
I have tables two tables, the "book" and the "author", a book can have many authors and vice versa, so there is an intermediate table called "book_author" with two columns as foreign key for those two primary keys
book_author book_id author_id
I'm trying to edit the book details and also its author using the entity date model, The controller class method
[Code]....
The HTML edit form
[Code]....
I can only update the book table, but not author that the book has or the book_author, I'm new to asp.net, I can't easily find a tutorial on this issue, I think the logic is to delete the author of the book first and then add the author for that book, but I don't know exactly about that linq and C# code. Can show me? I can only update the book table, but not author that the book has or the book_author, I'm new to asp.net, I can't easily find a tutorial on this issue, I think the logic is to delete the author of the book first and then add the author for that book, but I don't know exactly about that linq and C# code.
how i call a image field from another table? the image field in the same table is working fine but the one on the other table is not. I have created the foreign key and made the connection... What else do i need to do to call that field? Page Load:
i am using sql server 2005 as backend for developing webforms with asp.net using C#.i have two tables table1 and table2.
table1 has user_id(primary key,not null),user_name. and table2 has dept_id(primary key,not null),user_id(foreign key,not null),dept_location.
Firstly i created table1 and insert data in it.. later i created table2 with foreign key relationship with table1..In the add form design of table2 for entering data and insert into table2,i placed a dropdownlist which is binded with user_id from table1...dropdownlist's.datatextfield is equal to "user_name" and datavaluefield is equal to "user_id"..i have to select user_name from dropdownlist.... what i have to do is to insert data into table2... i used the simple sql insert statement as follows..
insert into table2 values(......); but it shows error :insert statement conflicted with the foreign key.
the 1st: PAR_TipiDocumento with idTipoDocumento PK idClasseDocumento [...]
the 2nd: PAR_ClassiDocumento with idClasseDocumento PK [...]
and a foreing key FK_PAR_TipiDocumento_PAR_ClassiDocumento from PAR_TipiDocumento.idClasseDocumentoto PAR_ClassiDocumento.idClasseDocumento.
This is my .cs code for the metadata:
[MetadataType(typeof(PAR_TipiDocumento_Metadata))] [DisplayName("Tipi Documento")] public partial class PAR_TipiDocumento[code]....
The problem is that in the Dynamic Data generated pages I correctly see all the display names "Tipi Documento" except for the header row of the PAR_ClassiDocumento table where I have "PAR_TipiDocumentos" (the plural generated by LINQ to SQL). The values under this column are correctly rendered as links to the PAR_TipiDocumento table with the right display name ("View Tipi Documento").
How can I change the Display Name of that "PAR_TipiDocumentos"?
I want to insert AccountID a foreign key of HappyLand Table. I want AccountID of Happyland to be the same as the AccountInfoID of AccountInfo. I created a relationship between tables, but I still can't get it to insert the AccountID. I am inserting Data SQLDatasource3.Insert()
TABLE HapplyLand TABLE AccountInfo ID INT primary key AcountID INT primarykey AccountID INT foreign key email varchar(50) Age varchar(50) LastName varchar(50) Phone varchar(50)
I need to populate the foreign key coloum in the table.
i have three tables PATIENT DETAILS ptID firstName lastName address IMPLANT DETAILS impID ptID productID productSerialNo PRODUCT productID productName
I am instering data in PATIENT DETAILS and IMPLANT DETAILS table on the same page from single button click .
I have a foreign key on the table IMPLANT DETAIL (productID) which i populate through the value on the dropdownlist .
What my problem is how will i populate foreign key (ptID) in IMPLANT DETAIL table. When ptID (PATIENT DETAIL) will also be generated from the same button click at almost of the same time.
I have a patient entry table, which has patientID as primary key. if I want to retrieve tests information about a particular test then I have to add a pid as foreign key??
do i have to add a test_ID kinda field in all four tests tables????
I have set up Membership and Roles and can create users and login using the ASp Login control. However I need to associate users with customers (in a Customers table in the database) and display content according to the customer that the user belongs to. Is the best way of doing this to create a foreign key field in the aspnet_Users table relating back to Customers table which would have to be updated manually after creating the user or is there a better way?
I am using SQL Server2005 with asp.net. I want validation at server side to restrict duplicate entries, Here i am using two tables companies and Branches. In Branches Table i had maintain a foreign key of CompanyId. In Branches the BranchName can be duplicate but not for the Particular CompanyId
I have 2 Tables , OrderDetails and Requests In my LINQ to SQL dbml file. OrderDetailsID is a foreign key in Requests Table. I want to write the query to get the sum of UnitCost from OrderDetails based on OrderId. And If there is a row in Requests Table for each OrderDetailsID, and the Requests.Last.RequestType="Refund" I want to reduce the total refund amount from the main sum otherwise If there is no row based on OrderDetailsID, add to sum. Here is the way I implement that. I am looking to prevent using "For each".
iRefund = (From od1 In dc.OrderDetails _ Where od1.OrderID =1 _ Select od1.UnitCost).Sum Dim objOrderDetails = (From od1 In dc.OrderDetails _ Where od1.OrderID =1 _ Select od1) For Each OrderDetail As ORM.Entities.OrderDetail In objOrderDetails If Not OrderDetail.Requests Is Nothing Then IF OrderDetail.Requests.Last.RequestType="Refund" Then iRefund -= OrderDetail.UnitCost End If End If Next
Perhaps this is a simpler VS9 question, but I want to link a SQLServer table with additional user data to the standard SQLServer membership table using the GUID userID as a foreign key. I go into design mode of my table, right-click on relationships, and click add in the dialog. but the left hand column shows me only the tables in my database. How do I get it to show the tables in the ASPNETDB.MDF database? I went through the tutorial (http://www.asp.net/learn/security/tutorial-08-cs.aspx), but it seems to magically appear in there without explanation.
I am using VS2008 and oracle 10g ODP.Net. The oracle database that I used in the connection is working and tested it using sql plus.The connection string when used in a GriDView works perfectly. Now when I created a new listview control with the same connection it gives an error.Database schema could not be retrieved for this connection. Please make sure connection settings are correct and the database is online
Object reference not set to an instance of an object at VSDataObjectSupport (478,6)
I use Mysql database, in this i create two table A, B. table A column x and is FK of second table B's column m,n,o provide does it possible that x referncing to foreign key of table B columns m, n , and o all.
I have multiple tables that are all linked back to a central table with foreign keys. I want to be able to create a new record in table 2, but I'm having trouble because I don't know how to create a new instance of table 2's record while referencing the ID of the record it will be tied to.
EXAMPLE:
Database: Collection Table: Collection Field 1: id Field 2: name Table: Book Field 1: collectionId Field 2: id Field 3: name
Now, I don't want to be able to create a book without setting it's collectionID, but I can't figure out how this should be divided in the controllers/views.
Should Book have a controller separate from Collection, or should the Collection controller have a createBook method, separate from it's own create method?
I want to call the createBook method (from it's own controller, or the Collection controller) from the Collection Details view.
When I invoke the create method of Book, how do I create a new Book that is instantiated with the collectionId set from the details view of the Collection item that was listed in the details view?
I should point out, I'm using the entity framework for my model, and I'm definitely new to this.
I have two tables with one common field. The field is the primary key in one table, and just a plain field in another. When I delete a record in the table where the common field is the primary key, I want to automaticaly delete a record in the other table that has the same data in the common field.
What is the most effecient method of doign this..triggers?
