I'd really like to know how to do the same thing in my code as going into sql server management studio, clicking on the design of a table, and then from the file menu scrolling to the relationships and disabling the foreign key constraint by selecting no to the 'enforce foreign key constraint'.
View 2 RepliesThe UPDATE statement conflicted with the FOREIGN KEY constraint "FK__Software__Packag__5165187F". The conflict occurred in database "StudentDB", table "dbo.Package", column 'PackageID'. The statement has been terminated.
what i try to do is run this;
[code]....
I have two tables with a foreign key constraint how can I delete rows from both of them in one transaction? linq to SQL seems to call my deletes in the wrong order. Is there somewhere I can check and make sure the constraint is recognized properly by linq to SQL??
DataContext.OtherImages.DeleteOnSubmit(myOtherImage);
DataContext.Images.DeleteOnSubmit(myImage);
DataContext.SubmitChanges();
The Foreign key constraint is on OtherImages.
I cannot get the value from the drop down list and I not sure what's wrong with the declaration and the code.
Dim selectedIntake As String = intakeDropDownList.SelectedItem.Text()
Dim selectedSupervisor As String = supervisorDropDownList.SelectedItem.Text()
.supervisor_ID = selectedSupervisor(0), _
.semester_No = selectedIntake(0) _
[Code]....
This is the error message I get :
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_student_Details_lecturer_Details". The conflict occurred in database "SKTM-AAS", table "dbo.lecturer_Details", column 'supervisor_ID'. The statement has been terminated.
I have a table with three fields, User, City and Country, where exactly one of the fields must be non-NULL at all times. Can I use an SQL constraint for this or should I rethink what I'm doing?
The scenario is that my database should contain documents that can be attached to users, cities or countries. So a row in this table contains exactly one document for either a user, a city or a country. However, one should be able to search for all documents as well, regardless of what entity it has been "attached" to.
The reason I'm not using three different tables instead is that I want to avoid having to JOIN the three tables when searching for documents in all of the three places. I'm imagining that the kind of denormalization I'm attempting to use here will improve performance.
I'm trying to remove a user from the aspnet_Users table.
[Code]....
I received the following error during my try-catch test:
System.Data.SqlClient.SqlException was caught Message=The DELETE statement conflicted with the REFERENCE constraint "FK_lusHmoob_aspnet_Users". The conflict occurred in database "laujtsov", table
"laujAdmin.lusHmoob", column 'whoInsert'.
The statement has been terminated.
Source=.Net SqlClient Data Provider
ErrorCode=-2146232060
[Code].....
let say i have 2 table (PARENT and STUDENT table)
the structure for both table are
STUDENT
PARENT
student_id (PK) parent_id (PK)
student_parent (FK) parent_status (the value is either ACTIVE OR INACTIVE)
- parent_id is refer by STUDENT table as a foreign key
- now i want to inactive the status for parent
- i want my system pop out a message something like "The parent you want to inactive is refer by a student, inactive is not allow"
- is it any constraint in SQL Server 2005 to help me check whether parent it is refer by student table? The concept i want to use is something like delete constraint in SQL Server 2005 mean it is not allow to delete a person who is refer by a student in STUDENT table.
i have a bizar situation, i have a SSIS package which imports records from a flatfile.First i get rid of all the double records, so I keep only unique records before I put them into the desired table.I have put a dataviewer on the flow and notice that there are no duplicate records, and though the SSIS package fails with a violoation of a promary key constraint.Hs anyone seen this before? It is really strange.
View 1 RepliesI have a master page which has some user controls within an update panel.I would like to put a property in this page to let the content pages to be able to enable/disable async postback way of working this page.Can I achieve it programmatically?
View 1 RepliesIs it possible to allow repeated nulls on a column with a unique constraint? This column will won't always be populated with data upon insert, a condition must be met before the value is update. Once updated, it needs to be unique. Do I need to assign a temporary, random value or
View 1 RepliesWhen I get an exception message like this I want an Exception Class name to compare.Not wantto compare a string to match with substring.when I get an unique constraint error like this below how can I control if error exception type is exactly sqlserver unique constraint error ?:
catch (Exception ex)
{ if (ex.class==SQLUniqueException) blahblah();
};
I have a SQL Server 2000 table with 7 columns and would like to add a constraint that prevents a row being added with the same value for both Col2 and Col3.
So, for example, if Col2 = 205 and Col3 = 5, then the constraint should prevent inserting another row with the values for Col2 = 205 and Col3 = 5.
The following is an example of what I would like to prevent:
Col1 Col2 Col3 Col4 Col5 Col6
1 205 5 1 1 1
2 205 5 0 0 0
I have tables:
MAILBOX
MailboxId int PK
MailboxTypeId int FK
MAILBOXTYPES
MailboxTypeId int PK
I can't make relationship between MailboxTypeId in table MAILBOXTYPES and MailboxTypeId in table MAILBOX why ?
I try to create one CONSTRAINT in Sql Server 2008 which checked that:
if Frecuencia = 0 then EsPar <> null
I try to do this:
ALTER TABLE [IngresoxConsorcio] WITH NOCHECK
ADD CONSTRAINT CheckBimestral
CHECK(Frecuencia = 2 AND EsPar <> null)
But obviously don't works
I have a DetailsView control with DefaultMode = ReadOnly in my page. When the page loads, it shows the edit link. I would like to programmatically hide the edit link when the user is an administrator on page load. By default, I have set ShowEditButton="True". How do i reference the edit link when it is automatically genereated from the CommandField.
Here is my code:
[Code]....
1 - Is it necessary to have foreign key to obtain a Relation in Entity Framework between each entity.?
2 - I have a Language Table and many many table with a foreign key related to the language table. Is it right to add this foreign key or I should do something else ?
Ex:
Language
LangID
LangName
TableTextA
TblAID
TextInfo
LangID
TableTextB
TblBID
TextInfo
LangID
TableTextC
TblCID
TextInfo
LangID
etc ...
In my databse i have a databse tables
UserRole -UserID,UserName,RoleName.
Compaign - CompaignId,Region,CompaignName,LOB.
Employee -EmpNo,EmpName,CompignId
Timesheet -TimeId,EmpNo,Date.
I dont have primary key for Compaign Table CompaignId is Identity column. Now i want to use CompaignId in Employee Table because based on compaign user will retrieve employee data in Front end. Again Employee table doesn't have primary key. I am uploading excel file data to databse but in excel file there is no empNo so i cannot use primaryKey i have EmpName in excel file. How to solve this issue. How to use master table if possible create table structure for my requirements.
I have two tables, which is table 'A' and table 'B'. Table B contains a foreign key that is referenced to table 'A'. The question now is, could I used an option in my project in visual studio an 'Others specify'? I believed that it's not possible, isn't it?If I have a selection that is bound to a datasource then is it possible to make an option 'Others specify' without adding the specified value to the database, which in turn would not have a unique ID? Table B contains the table A ID PK field, and all values from table A to table B should contain a unique ID.
View 2 RepliesI am new to sql. I got this task to design a table in sql. It has for columns user_ID(PK, FK1) , WebSite_ID (PK, FK2), Create_Dt, Update_Dt How do I create PK and Fk1 and PK FK2 in sql server 2008 R2
View 3 RepliesI need ms sql video, in which i can learn how to set primary and foreign key.. why it useful and how it works...
View 3 Repliesi need to delete some but i am using emp_id primary key in one table and using emp_id foreign key another one table.. now i wanna delete emp_id .. but i cant delete the row .. displaying error message .. how to delete the rows...
View 1 RepliesI have four tables namely tblStudent, tblParent, tblEmployee and tblUnwantedVisitor.
tblUnwantedVisitor should get the primary key from the three tables, which is the visitor ID, tblStudent visitor ID starts from 10000, tblEmployee from 20000 and tblEmployee from 30000.
I used foreign key from one to one table only, so I don't know if my approach for the database is wrong or foreign key for multiple tables, which is somehow unlikely, is necessary.
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.
I have 2 tables Order and Order_Detailrder_dtl_id is the primary key Order_id is the foreign key that referrence Order_Id in Order Table
View 4 RepliesI have four tables test1, test2, test3, test4
they dont have any primary keys.
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????
how to do this in sql server management studio.