VS 2008 Oracle DataAdupter Update Method & Constraint Violation?
Jan 7, 2010
I have the following simple Sub to write a dataset back to an Oracle database
[code..]
Checking the logs today I noticed that for some executions I got an ORA-0001 (constraint violation) error. It seems that one of the fields in the oracle table being updated is marked as unique and my dataset contains one or more records that have the same value in that field.
How is this error handled? Does it just not add the violating records? Does it hit the invalid record and quit? Does it rollback?
View 1 Replies
ADVERTISEMENT
May 20, 2010
i am trying to write a code in which i need to perform a update but on primary keys how do i achieve it
i have written the following code: kindly look at it let me know where m wrong
[Code]...
View 2 Replies
Apr 6, 2010
i am trying to write a code in which i need to perform a update but on primary keys how do i achieve iti have written the following code:
Protected Sub rgKMSLoc_UpdateCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles rgKMSLoc.UpdateCommand
Try
KAYAReqConn.Open()
[code]....
View 1 Replies
Aug 6, 2009
I have a problem running a simple query: "select distinct payee from table". This query is set up in the dataset and is called GetAllPayee.My code goes something like:
Dim dtSources as new Datatable
dtSources =
Me.TblExpenseRecordsTableAdapter.GetAllPayee
Upon running I get the error:Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.The problem is, I haven't set ANY constraints on either the new datatable, or the dataset table (tblExpenseRecords). i.e. there is no primary key etc.
Can someone please help me out with this problem?I have no problems running the query through the wizard where I can view the results successfully.
View 3 Replies
Jan 27, 2011
I have two function:
Public Sub AddData() Dim sSQL As String = "" Dim check As Boolean = Me.TestExistingRow("QUESTIONARIO1") If check = False Then sSQL = "INSERT INTO QUESTIONARIO1([USER]) VALUES ('" & Me.IdUser & "');" ExecuteNonQuery(Me.ConnString, CommandType.Text, sSQL) End If End Sub Public Function TestExistingRow(ByVal NameTable As String) As Boolean
[code]....
View 13 Replies
Mar 17, 2009
get around the following problem please?I have an Access database which can be accessed by more than one instance of my application (which is) a Form with a DataGridView on it.I populate the DGV with
Form1.Validate()Form1.CHECKLISTBindingSource.EndEdit()Form1.CHECKLISTTableAdapter.Update(Form1.chkDataSet.CHECKLIST) The Access Database can then be updated via the DGV by a button click (which runs the code above (to copy across the latest copy of the DB) and then runs the code below to copy your changes to the DB)
Form1.CHECKLISTTableAdapter.Fill(Form1.chkDataSet.CHECKLIST)
Form1.DataGridView4.DataSource = Form1.CHECKLISTBindingSource
Form1.DataGridView4.Refresh()
The Access table is basicaly a 'Time' Column and a 'Name' Column.
[Code]...
View 4 Replies
Jun 5, 2011
A concurrency violation error? It happens on this statement:
CODE:
It thinks I'm using a key value of 1 when the actual value is really 1218. I'm using a command builder. The attachments show the value of the key value and the value of the update text values. By the way, I can insert data but not update it.
View 2 Replies
Jul 7, 2011
I have a TableAdapter I created in the DataSet designer. It contains joined tables and I set it up to automatically generate Insert/Update/Delete commands. I understand that I have to write my own UpdateCommand. I did so, in the DataSet Designer, for this particular TableAdapter.
The issue is that the Update Method is not showing up via IntelliSense, when I attempt to write code like this:
vb.net Dim x as Integer = Me.DPTableAdapter.Update(), IntelliSense does not show the Update Method with the parameters I set up.I created the same exact method with another TableAdapter, in the same manner, and it worked just fine.
I also call EndEdit on the BindingSource, I just did not put it in this post.
View 15 Replies
Apr 22, 2010
I want to update a particular row in the database table but no success,i keep on receiving this error One or more errors occurred during processing of command. ORA-00907: missing right parenthesis
Cmd = New OleDbCommand("UPDATE SUB_DETAIL SET (LECT_ID = " & TextBox3.Text & ") WHERE SUB_ID = " & cmb_subID.Text & ")", con)
con.Open()
[code].....
View 2 Replies
May 7, 2012
I have the following code in a VB .NET application. I am trying to update columns in an Oracle table with data with SQL data. When I run the application, I get (ORA-00933: SQL command not properly ended) for the 'or_cmd_3.ExecuteNonQuery()' line.
If I strip out the code and run it in TOAD or SQL Developer, replacing the temp varialve with some bogus data it updates fine. What am I missing?
ElseIf (oracle_summary_temp = ueio_tmpALM_Summary) And (oracle_request_ID_temp = ueio_tmpALM_ID) And added_to_alm = "1" AndAlso ({"Deferred", "Rejected", "Closed"}.Contains(ueio_tmpALM_Status)) Then
Dim update_oracle As String = Nothing
[Code]....
View 2 Replies
Apr 21, 2010
I am using oracle database and i already created a connection and retrieved data from my oracle DB to Datagridview using oledb commands,now my major challenge which has gotten me sick is to update any changes made in the datagridview to the oracle database. I tried using sqlcommandbuilder but failed. This code is what i used to retrieved the data from oracle and place it into the datagridview.
These are my declarations i made at the beginning of the form:
Private myDA As OleDbDataAdapter
Private myDataSet As DataSet
These are the codes inside the search button to load the retrieved data from oracle into the datagridview
Public con As OleDbConnection = New OleDbConnection("Provider=MSDAORA.1;User ID=SYSTEM; Password=simon; database=project")
[Code]
View 1 Replies
Jul 16, 2010
I'm new at vb.net programming so be gentle. I have the flowing code
Dim dAdapter = New OleDbDataAdapter("Select * from items", dbConOra)
Dim dTable = New DataTable()
dAdapter.Fill(dTable)
BSourceItems.DataSource = dTable
DataGridVew1.DataSource = BSourceItems
[Code]...
View 4 Replies
Apr 13, 2010
i have problem on how to insert the data into the oracle database 10g using visual basic 2008
My coding is like at below:Dim cmd211 As OleDbCommand
cmd211 = New OleDbCommand("INSERT INTO STUDENT_DETAIL(STUD_ID,STUD_NAME) VALUES(@STUD_ID,@STUD_NAME)", con)
.Add("@STUD_ID", OleDbType.VarChar).Value = txt_studId.Text
View 2 Replies
Apr 29, 2010
I was creating an XML Schema from a project 2003 XML. All was fine until I rebooted the machine and tried to re-open the file. I am now getting an error along the lines of:
"Identity Constraint not declared".
I've compressed and attached the file.
View 1 Replies
Nov 5, 2010
Public Sub UpdateStaff(ByVal sr As StaffRecord)
Dim oldSr As StaffRecord
Dim q = From staff In db.StaffRecords Where staff.Employee_Number = sr.Employee_Number Select staff
oldSr = q.First
oldSr.Address_Line1 = sr.Address_Line1
[Code]...
The helper function I have written seems to do everything I want apart from update the db. Stepping through the code, the oldSr is updated by the new sr parameter but no update on submit changes.
View 2 Replies
Apr 2, 2009
I have the following code that creates a master/detail scenario between a products table and a test table based on the productid: [code]Unhandled exception has occured. the constraint cannot be enabled as not all values have corresponding parent values as you will see, where I add the datarelation between the two datatables i've added a false. This ensures constraints are not created.That solved the problem. However, I want to know if this is the correct solution. It is really difficult to troubleshoot as I cannot reproduce the error. The database is accessed through the network. it could be the network was down at the time so the child records where not inserted hence the error.
View 4 Replies
Apr 8, 2009
Im having a access violation error on my QueryPerformanceCounter Statement and im not sure why. I've search the internet for answers but found none.Declaration:
Private Declare Function QueryPerformanceFrequency Lib "kernel32" Alias "QueryPerformanceFrequency" (ByVal lpFrequency As Int64) As Boolean
Private Declare Function QueryPerformanceCounter Lib "kernel32" Alias
[code].....
View 2 Replies
May 3, 2011
I have created a query method for my tableAdapter in the dataset designer. I typed the command text manually, but tested it in the query builder after I got a Constraint Exception when debugging. When running in the query builder via 'Execute Query' I get exactly the results I expect. When running the application I get this exception: "Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints." I tried temporarily setting my dataset's EnforceConstraints property to FALSE but still get the same exception. I can't understand why the Query Builder would return the correct datatable but running the app would not. Is this a bug?
View 3 Replies
Oct 1, 2011
I have a single user app that I wrote and have been using for more than a year that uses an Access 2003 database. Today, out of the blue, I started getting a DB concurrency violation whenever I tried to update one particular table in the database. After trying to troubleshoot what the problem might be, I just deleted that table and recreated it and the problem went away.
View 2 Replies
May 8, 2009
My client recently got this error but I can't reproduce it on my pc. Any Idea what the problem could be. I have a master/detail scenario. So I have a grandparent/parent relationship, so when I select a product from my product combobox it displays the relevant results from the Result_Header table in my first datagridview.
Then I have a parent/child relationship so that when I select a result_header item from my first datagridview it displays the child records from the Result_detail table. If i'm adding a new Result_Header and then click save, I search for existing tests for the chosen product and insert them as new datarows into the Result_detail table. then I can update the child rows and click the second save button and it saves what I edit. Quite complicated.
Dim data As DataSet
Private dbpath As String = My.Settings.dbpath
Private con As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;" _
& "Data Source=" & dbpath & ";Persist Security Info=False;")
[code]....
View 1 Replies
Mar 4, 2010
I am reading a csv file in to a datatable in vb.net and making a few checks and appending an extra column. I then want to perform a bulk insert using microsofts Oracle.DataAccess (no choice in this) to an Oracle database. what would be the best way to perform this as there is no bulkImport like in SQLserver.
View 2 Replies
Dec 29, 2009
can you tell me,how can i add a provider for oracle(Microsoft Provider oledb for oracle).Actually i had Microsoft ODBC for oracle but i want to add a provider above mention.
View 2 Replies
Feb 24, 2011
Trying to update an oracle 10g table using asp.net and the oracleclient connector Here is the sql syntax:
[Code]...
everything works fine. The column PURPOSE does exist and I am able to INSERT information into the PURPOSE column.
View 2 Replies
Oct 27, 2009
how to get records into oracle database delete from db & update the records i have successfully connected my vb 2008 win form with oracle 10g.
View 1 Replies
Jan 7, 2012
I have a filled dataset from a query.
I must modify 2 columns in this dataset, based on a custom function value (a normal vb function), which parameter is an another column from the dataset.[code]...
View 3 Replies
Apr 21, 2011
I was trying to work out the best method of synchronising an update of files via vb.net. I want to automatically update some files in a few folders from an FTP site to a local drive. This would ideally be the same folder structure, but on a specified local folder. I have looked at the FTP methods in .net and am able to transfer individual files successfully, but wondered if there was an elegant method to collecting the entire folder from the FTP and it's contents to be re-created locally. I have established the reading of an XML via linq from the ftp to establish an update single and decide whether the local machine is up-to-date or not, it's just the transfer of the folders that I'm stuck on as it's different to using a IO method.
View 1 Replies
Nov 17, 2011
I've been trying to get the update method to work on a DataGridView for the past 2 days and I just can't get it to happen!I'm using a "Save Button" to invoke the update and no errors are thrown but the table is not updated when the save button is pressed.
Private Sub Main_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
With NodesDataGridView.ColumnHeadersDefaultCellStyle
.Alignment = DataGridViewContentAlignment.MiddleCenter
[code]....
View 7 Replies
Apr 2, 2009
Im trying to logically figure out how to update a record in a database through a web service to the database I have created this web method function but im stuck on completing this
[Code]...
View 1 Replies
Feb 5, 2010
I created a simple program that uses a saved word document (letter, and contracts) as a template to create other documents with information from my text boxes (from my VB application) which replaces my bookmark information with the new info (firstName, lastName, address, notes, etc.). This is what I currently use for the call statements to update the bookmarks[code]...
View 7 Replies
Nov 3, 2010
I created a reporting utility for my users to view, send (via email), export SSRS reports. I have set up date parameter boxes with calendar drop down and they are able to send via email a URL link that would either display the report via ReportViewer or send a link that would let then view the report in Excel or PDF. This is working just fine. Now I just added a button for adding new email addresses and a new windows form with a textbox for entering the email address and a command button for Save Email Address. I get an error msg Quote: Objects added to a BindingSource's list must all be of the same type.[code]
View 5 Replies
