I'm creating a program that uses sql statments to input data into a data base, but I'm having a problem with this error:The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Job_ProductCode". The conflict occurred in database "FabList.mdf", table "dbo.ProductCode", column 'ProductID'. The statement has been terminated.
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myCommand = New SqlCommand(
"INSERT INTO tblBook(BookCode, BookTitle, Author, PublishingYear,
Price, EnterDate, CatID, RackID, Amount)
VALUES('" & txtBookCode.Text & "','" &
txtTitle.Text & "','" &
[Code]...
The INSERT statement conflicted with the FOREING KEY constraint "FK_tblBook_tblCategory". The conflict occurred in database "CIEDC", table "dbo.tblCategory", column 'CatID'. The statement has been terminated.
Was that because of my database's relationships?
I am new to VB.net and have created a simple master detail windows form. I created a two table data set and then dropped the master table on the form as a continues form or a detail form with several text boxes to enter data. The child form is a data grid and was simple drag and drop from the data-set. All of this was done with drag and drop and I have added nor changed any code.test data that I have added directly to the database shows up with the proper parent child relationships on the form. I can also enter new records into the database using the parent only portion of my form. I can also update a child record.When I attempt to enter a complete record with data in both the parent form and the child data grid I get this error.
The INSERT statement conflicted with the FOREIGN KEY constraint FK_tblComplainant_tblUseOfForce. The conflict occurred in database "C:\SQLFILES\CCTS_2.MDF", table "dbo.tblUseOfForce", column 'UOFID'. The statement has
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This happens occasionally in my app. How can I prevent this:INSERT statement conflicted with the FOREIGN KEY.[code]
View 1 Repliesim using try catch to handle this error uponm deletion of record that is foreign key to other table but it seems that my try catch is not working. im using asp.net (VB). can anyone help me???' i want to display an error message in my page.
View 1 RepliesI have a form with comboboxes, if the user doesnt select a value in the box I want a null to be sent to the database. The insert works fine, i look at the record in the db and see the null. The update doesnt work. gives me a n "Update statement conflicted with foreign key constaint....."
Public Sub Update()
TableAdapterCreate().Update(ID1, ID2, CType(cbox1.SelectedValue, Integer), CType(cbox2.SelectedValue, Integer), CType(cbox3.SelectedValue, Integer), CType(cbox4.SelectedValue, Integer),
[CODE]...
As I step through the selected value of the cbox 5 is shown as nothing (which it should be because the user didnt select a value for this combobox). I assume this needs to be a null instead of nothing to get written to the database. the combox boxes need to match a primary key in another table so sending a 0 would also result in the forieign key error since the related table does not have a 0 ID field.
While I've previously many years of relational databases and procedural languages, I'm stumbling with Visual Basic. In this problem, the simple situation is that I have two files, parent and child. The primary key of the parent file (Area file) is linked by a relation to one of the two fields that makes up the primary key in the child file (Project file) (unique key is formed from 'area' and 'project'). I have the default table adapters created on both files. I have created two maintenance forms showing one each of the two files in datagrid view format.I can create some records in the Parent (Area) file, but when I try to create a record in the child (Project) file, using one of the valid key values from the Area file, I get the 'ForeignKeyConstraint [relation name] requires the child key values [actual value] to exist in the parent table' which I'm absolutely definitely sure it does.
I haven't done any actual coding for those two maintenance forms, just dragged-and-dropped the files from the data sources screen onto separate forms so it creates the controls itself. But I can't work out, if it already knows the data does exist because I can load it back in to the Area maintence form, why it can't check itself to find out the record does exist. Why does it think the record from the parent record doesn't exist? It does exactly the same thing, whether or not the database is in access or SQL Server Express. I have all the latest updates.
I'm developing an app in VB.Net (Visual Studio Express 2008, on Windows Vista) that connects to an Access relational database. The database has 3 related tables (TextSections, LineItems, Cycles) that I'm loading into my dataset. I've set up two foreign key constraints and want all changes to cascade through the related records in the child tables. I cannot get the cascades to reflect through.
For example, when I delete the parent record, the children records remain (in the database - they are removed from the dataset). Also, when I modify the parent record (change the Description field for example), the change is not reflected in the dataset datatable that holds the children records - unless I go through and ReLoad all of the data from the database and re-Set the constraints. I have set the .AcceptChanges, .UpdateRule, and .DeleteRule to cascade, and have also set EnforceConstraints on the dataset. Why aren't the changes cascading through the children?
Below I've pasted (1) the Load Routines for my datatables TextSections (parent), LineItems (child), and Cycles (child of LineItems); (2) the method that creates the constraints in the dataset, and (3) The Save routine for TextSections.
Friend Sub LoadTSTable()
Dim key(1) As DataColumn
Dim newCol As New DataColumn
[code].....
I just watched a video from Beth Messi about setting up a primary key and foreign key on a table.
I created two tables, one called customer and the other one called orders CustomerID is the primary key to the customer table OrderID is the primary ket to the orders table and CustomerID is foreign key to the orders table
Beth Messi said that this would maintain the integrity of the tables and she also mentioned something about setting up a cascade delete so that when we delete a record in the customer table, the customer's order in order table will get deleted as well.
how I can set up the cascade delete, Meanwhile, I tried deleting a customer record in customer table - a customer with orders, and I got the following error when I clicked save.
The DELETE statement conflicted with the REFERENCE constraint "FK_Orders_Customer". The conflict occurred in database "C:DOCUMENTS AND SETTINGSLOUISLOCAL SETTINGSAPPLICATION DATATEMPORARY PROJECTSWBINDEBUGTEST.MDF", table "dbo.Orders", column 'CustomerID'. The statement has been terminated.
Shall I use try catch to warn the user that the record that I tried to delete has an order? They can't delete the customer unless the orders table's record is deleted first?
I have an application that works with a database that uses foreign key constraints.
For example, we have an inventory table that has a foreign key constraint that references a table called case_names. If a user attempts to delete a case name that has any inventory items referencing it's ID, the action is restricted.
How can I display a message to the user that they will understand? 'You can not delete this case as it still contains inventory items.'
My thought is a try-catch (catching different error types?) but I do not really want to use this for something that may be expected.
The application is in VB.Net using MySQL.data
I am using a number of tables on my application and two of which have a foreign key constraint I have set between them. When I change the account number on the main table via a combo box all of the relevant information for that table on the form is updated accordingly. However, the child table which has a foreign key reference to the Account Number of the main table is not updated when the acocunt number is changed. I have set the update to cascade in the references but still am having issues.
View 5 RepliesIm getting an error with my insert statment "Syntax Error in INSERT INTO statement". I do not understand why. Im using global variables from form 1 and using them in form2 and trying to insert them from form2 into the database.
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this is my code for adding users in my database but it has an error on the INSERT INTO statement.here is the error: Microsoft office access database engine: syntax error in INSERT INTO statement.
vb.net
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
Dim conn As New OleDbConnection(cn)
Dim check As Integer
[code]....
here is my code so far:
Public Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
Dim i As Integer
[Code].....
when i click the button, i get a error message saying "Syntax error in INSERT INTO statement". as far as i can tell, i have everything i need to insert a new row into the database, and i dont see why this problem is occuring.
item(0) is an autonumber key field, so that should make a new record by itself, and i have declared the input textboxes as the data() array
I receive an error stating my INSERT INTO statement is messed up.[code]...
View 3 RepliesI would just like to ask if my insert statement is correct..
when i run my program it returns me an error that says 'syntax error on my insert statement'. this syntax seems to work with sql database, but when i tried on access database it didn't work [code]...
I'm using a gridviews Row Updating to add edited fields into a table for monitoring. Everything seems to work except for the one value, as shown below. [code]...
View 3 RepliesAm getting the below error at run-time of executing query in VB.Net. Please give the solution for this
Error : "Syntax Error in INSERT INTO statement" My code is given below
[Code]...
I am currently trying to make an insert statement that will first check for exceptions before it is sent to the SQL server, I am new to this and would like to know what errors I should be looking out for and also what code should I use to ensure the errors will be caught. [code]This is a continuation of a previous thread...it was getting kind of long and the initial issue was resolved so i decided to open a new thread..
View 7 RepliesI am currently trying to make an insert statement that will first check for exceptions before it is sent to the SQL server, I am new to this and would like to know what errors I should be looking out for and also what code should I use to ensure the error will be caught.
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I'm new to ASP.Net and I'm having an error while trying to add record to my database. Any help? After executing the code, I'm having the message "Error in INSERT INTO statement" and the execution stops at cmd.executenonquery().[code]
View 2 Repliesi am making a simple database application using an access database and vb.net. i can do every other operation (i.e delete,go to the first ,last etc) but i am not able to add a new record to the database. each time i try to Update the database, an error " Syntax Error in INSERT INTO statement" .. i really don't know what the problem is everything else seems to be working .[code]
View 2 RepliesI am trying to input data from my visual basic program into an Access 2003 database. I get the error "Syntax error in INSERT INTO statement" on the line cmd.ExecuteNonQuery().
View 7 Repliesi need to solve this problem. i tried to solve it but i failed.
'sql statements
strsql = "Insert Into tblepinfo (EmployeeNo, surname,firstname , middlename, nextension,dateofbirth ,placeofbirth , sex, civilstatus, citizenship,height , weight,
[code].....
Private Sub btnRegister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles[code]....
View 1 RepliesI'm having a problem with adding a new row into my database and saving it to the database - i've looked all over the internet and haven't found a solution[code]...
View 3 RepliesThe code i am using is
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
connect()
End Sub
Sub connect()
[code]....
where i have bold the text in the code is were the error is?
if there is anything wrong with this code. It keeps coming up with the same syntax error. unless i'm missing something really silly, or i'm crap
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i'm trying to add a record to a MS Access database(2003)
but i recieve this error: Syntax error in update statement
i don't know what's wrong with my code but i suspect that the problem lies in this bit of code.
If inc <> -1 Then
Dim cb As New OleDb.OleDbCommandBuilder(da)
Dim dsNewRow As DataRow
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I am trying to insert into a DB with has the following columns:
ID (autonumber), BonderIdentifier (text), Username (text), Login (date), Logout (date).
BonderIdentifier, Username, Login is the PK.
Here is what I do:
Public Function submitNewToDB(ByVal sessionData As BonderSession) As Boolean
Dim cn As OleDbConnection
Dim cmd As OleDbCommand
Dim str As String
[Code] .....
Like I said I get an insert into error and I dont know why. Nothing is in the DB yet and the table is created. I ran the built string in Access as such:
Insert into Session ([BonderIdentifier], [Username], [Login]) values ('Mork', 'sean', '2/23/2010 11:12:42 AM')
And it works.... but in VS it doesn't.