i am working with multiple table with some same columns, so here i want to use the concept of primary key and foreign key.primary key is very easy to put on any fields but, i dont know how to give foreign key and how to create relationship between same fields of two table.
View 2 RepliesI've just taken over looking after a website and well to be honest the way it's been put together is not the best, but I have to make do as the client does not have the money to make major changes.Anyway currently there is data stored in a MsSQL database and some in an XML file. The xml file does have a ContentID attribute which matches the ContentID in a table.Not really done much with XML as I tend to use a database and LINQ.What would be the best way to tie these two together so I could output the results in a gridview for example.
View 2 RepliesI want to display details STRONGLY TYPE In a view this would be done as normal through the list, hiting the details link. however a table of notes is connected to the main table of info. i want to us the id of the main table item to list all the notes that have been entered about the record in the main table. how do i do this
View 1 Repliesi have 2 tables which are connected with FK.
StdPErsonal_info.Pk = Sid and student.FK = Sid
i want to use delete query which is delete the data from both tables in single query
I have 2 objects, that can exist seperately - lets say man and woman, neither needs to know about the other. But once they get get "married" it can only be married to each other. In other words, I'm trying to create 2 tables, 1 table has a FK to the other, that is NULLABLE. When i try to set the relationship to 1-to-1 via the dmbl, it wont let me - which makes sense. Ultimate i want to
1) create a women (no knowledge of a man)
[Code]....
Is this even possible? If i do a one-to-many - how can i make it act this way? At the business layer? create a partial class and override stuff?
1) create a women (no knowledge of a man)
I'm working on a new asp.net 4.0 resume web site. I'm starting off with SQL Server Express 2005 and using the standard security and login features given with ASPNETDB.mdf. My site will be hosted on GoDaddy.com.
Quesiton. Should the tables that will contain the information that users will be putting in like resumes, contact information and such go into ASPNETDB.mdf or should it go into a separate database.
I am working on a multi-lingual application Assume the following:
Database has 50 tables and application has to support 5 languages
Which is the best way to design the database:
1. Include a langugae column for each table. Repeat the values for each language. Say i have a country table which has 100 countries in it. Then my design will contain 500 rows (100 for each langugae)
2. Create a separate table which will contain the translations for all the 50 tables in with a foreign key to the parent table.
Which is more efficient out of the above two.
i m developing an inventory module in which i have a GRN(Goods Received Note) form, the user opens the form and enter the items which are coming from itemMaster table. I want to add the grn entry in a table named GRN and all its respective item details in other table and also want to update the instock quantity in item Master table. how can i achive this there are multiple items in a grid in grn form which are to be stored in a table and only 1entry of grn in grn table and also update the instock Qty in the itemMaster Table,,...i ned write my logic using Stored procedures and ADO.NET i m totally confused
View 1 RepliesI've used aspnet_Profile and I add new values​​. In the field "PropertyNames" I added value "DomainId". In the field "PropertyValuesStrings" I added value I get from the table "tbl_Domain.
How do I connect aspnet_profile table, column "PropertyValuesStrings"with tbl_Domain, column 'Id' primary key.
I am using bulk insert concept to export the data from dat file to tables(Two tables). I am using the temporary table for to do the calculation and insertion to two tables. My problem is whenever I selecting the temp table data after the execution of bulk insertion , the order is changing .I need to get the order as it is in file order(csv,dat,txt).
View 5 RepliesThe following datatype or size property of <Tablename>.<Columnname> doesn't match <Tablename>.<Columnname>. When creating a foreign key relationship, the data types and other properties of selected columns must match. Select a column with the same data types and other properties as the related column. The properties that must match are Data type, Length, Precision, Scale, and Collation.
I am trying to add a constraint to my database and I keep get the above error. I can find Data type, length, and Collation in the properties. What are precision and scale in this context. I don't see such settings. Specifically I am trying to add a relationship from the aspnet_Membership table to a table that I added. I have put a relationship on aspnet_Users.UserName to another table, so I am baffeled.
I have two tables as below.
I tried to establish a relation between two tables in such a way that Table_Contracts will still accept NULL values for [PO_No], but [PO_No] on TableContract will be automatically updated when [PO_No] on Table2_PONo changed. Moreover, if you want to delete a record on Table2_PONo, it needs to be stopped if there is a related data in Table_Contracts.
I set a relation with these parameters:
Check existing data on creation or re-enabling>
No
Enforce for replication>
No
Enforce foreign key constraint>
No
Delete Rule>
No Action
Update Rule>
Cascade
I got this error
Introducing FOREIGN KEY constraint 'FK_Table_Contracts_Table2_PONo' on table 'Table_Contracts' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.
Table2_PONo
[PO_No]
(primary key)
[Project_ID]
[SupplierID]
[Description]
[TotalPrice]
[PO_Currency]
[VATpercent]
[CostCode]
[Notes]
[PO_Date]
[Reality]
[UpdatedBy]
[FromAccess]
Table_Contracts
[ContractID]
[ProjectID]
[PO_No]
(accepts null values)
[ContractNo]
[ContractDate]
[ContractValue_woVAT]
[ContractCurrency]
[SupplierID]
[ContractDescription]
[ContractType]
[LinkToTemplatefile_DOC]
[SentToSupplier]
[SignBySupplier]
[SignByMercury]
[CollectionBySupplier]
[LinkToPDFcopy]
[ArchivedByMercury]
[UpdatedBy]
[Retention]
[Note]
My SQL Server db was installed before I installed VS2008. What happens when I create the standard ASP.net security it does not create the tables and SPs that are needed.
Would it be possible for someone to create an empty database with the relavant tables and SP etc and save it here or send it to me.
I have the following tables and fields in SQL:
[Code]....
I'd like to create an XML file(based on the above tables mentioned) which I'd like to bind to a treeview control, but I'm not sure how to do that.
I am trying to create my own profile provider based upon the tables I have made for my website, I have watched the video and read several articles on creating one, but none of them goes very indepth when you have several tables and groups to profile from. First: I have three groups
1. Employees
2. Customers
3. Applicants
PROBLEM: Video and tutorials don't show how to integrate groups into your profile. Based upon the UserId, I want to load only Table ID's into the profile. IE for a customer it would be
CustomerID from [customer_data]
LocationID from [customer_location]
ContactID from [customer_contacts]......................
I had to upgrade a sites ecuroty from a custom system to .net membership. I created all the users like this.
ds = Wservices.SelectBulkUsers()
If Not ds Is Nothing AndAlso Not ds.Tables(0) Is Nothing AndAlso ds.Tables(0).Rows.Count > 0 Then
For Each dr In ds.Tables(0).Rows
username = dr("username")
password = dr("password")
role = dr("SecurityClearance")
email = dr("email")
Dim newUser As MembershipUser = Membership.CreateUser(username, password, email, "", "", True, status)
Select Case role
Case "1"
Roles.AddUserToRole(username, "normal user")
Case "2"
Roles.AddUserToRole(username, "administrator")
Case "3"
Roles.AddUserToRole(username, "super administrator")
End Select
If newUser Is Nothing Then
errorMsg = username & " - " & status.ToString & "<br />"
End If
Next
litResult.Text = errorMsg
End If
I thought everything was fine and then went through the labourious task of replacing all the usersids used a as a foreign key in all the tables. It was only after doing this and trying to log on I couldnt, and noticed the membership table was empty. I assumed (stupidly) as it had done the users/ roles it must have done the membership. As I have already re-assigned the old user ids I dont want to import again as the userid will chnage. So my question is: Can I create a membership for each of the users in my aspnet_users table? I have the passwords etc in varchar fields at min from old table.
How do database and tables get created when I am pressing create user wizard in asp.net?
View 1 RepliesI am using the built in database with the tables (i.e. membership, users, etc...). I created my own table (relationships), but when I try to create a row that uses the same email address it says "cannot create duplicate entries". I am not allowing duplicate email addresses in the membership table. That did not work because I couldn't convert System.Guid to long. So, I decided to do it by email address. I changed idRequester to requesteremail and the same for receiver. However, when I try another record with the same email address in either field, it does not accept it.
View 1 RepliesIs there a way to create dynamic access database, tables and it's columns in c# and export or insert the data in it from excel file in c#?
How can I create the Access database and tables at run time using c#?
I'm trying to achieve something very similar to a forum. Two basic tables in a database, [Thread] and [Comment] (one to many relationship).
I need to create a form using MVC that creates the initial Thread, and also the very first comment row in the [Comment] table, which references that topic.
Would I need to create a custom object for the View Model? Is there any examples anybody knows of that demonstrate what i'm trying to achieve as I can't seem to find information..
Ever since I installed VS10, when I go to Project|ASP.Net configuration and security, and try to create aspnet_db, I get error that it can not connect to database. I have SQL Express 2008 installed and Machine.config is valid.
View 5 RepliesHow to create a table which is the combination of different columns in database tables.
I know how to make the var table using single table.
What is I have to combine multiple coolumns and create a table.
My requirement is a gridview which has a datasource which is loading from columns from multiple tables.
I have an ASP.net security database which is normally ASPNetDB.MDF however I have created the same database structure in MS Access. All works great. However, I need to add a couple of other tables but I can't find how to do that in VWD. I'm pretty sure I was able to when the first database I created was an MDF file but not in MS Access.
View 5 RepliesI have a view that has to render information from 3-4 tables. I therefore chose to create a viewModel for this. I am using EF as DAL.The information to be displayed is SiteId, SiteName, SiteDetails from one table.Associated to Site, other table Event_type has information about Events in the system with fileds like EventId, EventName, Event ScopeId.EventScope is another table with ScopeID and ScopeDesc Also, there is Site_Event_Implemnetation table that stores all the events associated to a site. It has SiteId, EventId, EventUnitIdEventUnit is another table that stores all the unit types.Now my Details ViewModel has to display the info SiteName, SiteDetails. And associated to that a grid of events with info on EventName, Scope Desc, Unit Desc1. How do I formulate my query to retrieve this info in my repository layer using Linq to EF?
View 13 RepliesI just wanna ask if there's a way in C#/ASP.NET to create 'dynamic' tables/fields similar to phpMyAdmin:
View 4 Replies