Validating Duplicate Record Of SQL Database Before Inserting & Upd?
Dec 2, 2011how to validate the Duplicate record before Inserting and Updating Command is Trigered from VB.Net Form. I am new to VB.
View 2 Replieshow to validate the Duplicate record before Inserting and Updating Command is Trigered from VB.Net Form. I am new to VB.
View 2 RepliesFor some reason my code is executing the INSERT query twice and putting duplicate records in my table. If I put a primary key on one of the fields I get a runtime error and it complains about the fact it can't add the record twice.The part of the code that INSERTs is near the bottom, bolded and italicized. I put the entire IF statement of code incase my logic is wrong.This is what's being executed when a user clicks a button
If listOfCompanies.Contains(cbx_Company.Text) Then
'If the list contains the company, UPDATE the record
If LaborChecked Then
[code].....
For some reason my code is executing the INSERT query twice and putting duplicate records in my table. If I put a primary key on one of the fields I get a runtime error and it complains about the fact it can't add the record twice.
The part of the code that INSERTs is near the bottom, bolded and italicized. I put the entire IF statement of code incase my logic is wrong.
This is what's being executed when a user clicks a button
If listOfCompanies.Contains(cbx_Company.Text) Then
'If the list contains the company, UPDATE the record
If LaborChecked Then
[Code].....
I am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage. i want to check it after entering whole name
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" &
[CODE]...
the next code is working but when I try to insert an existing record, it gives me an error and I want to add a msgbox to let people now that the username is already taken.Only the username cannot repeat on the database because it's the primary key.. the rest of the table rows can repeat.
Dim cn As New OleDbConnection
cn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Fabio\Desktop\Telemoveis\Telemoveis\Db_Tel.accdb"
[code].....
i need some function like adodb.recordset on vb6.0 on vb.net but seem i cant manipulate it like recordset because i want to manipulate in retrieving,inserting and updating my record on just only how call on the database im using mysql database..
View 4 RepliesI am inserting new record in ms access database by using VB.NET but when i insert new record it replaces the existing fisrt record the code i am using as follows
Coding:
Dim cnString As String
cnString = ("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\PaymentSystem\PaymentSystem\bin\Debug\Payment.mdb;")
[Code].....
I need to check if a Commodity entered into (TextBox1.Text) already exists on my table before i insert it. I'm having issues checking if the number of rows returned from my Select is equal 0? Also i'm wondering should i be checking for an exception and open/closing my connections each time i make a call to my DB or is the way i have it coded below OK?
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Try
myConnection = New SqlConnection("server=localSQLEXPRESS;uid=sa;password=12345;database=My DB")
myConnection.Open()
[code]....
I think I got most of the syntax correct for this however I keep on getting a syntax error: "Must declare the scalar variable "@Day"
Private Function FiveMinImport()
Try
Dim FileName As New String("C:5min.xml")
[code].....
i have a problem regarding about adding a record to my database, i want to insert a record that not exist on my table, the record that i want to add to a field is not related to other table. This field should be related to other table which is related by 1-M relation.I Just dont want to duplicate a record of this field from the table. [code]
View 2 RepliesHow Can i prevent duplicate record entry in vb.net.
View 3 RepliesI am working with some DBF database files and have an interesting dilemma. I need to search through a table, find duplicates and delete them. Problem... Table doesnt contain a key.
So Table looks like this:
Name, BadgeNum
I need to be able to find instances like this:
John, 10
John, 10
and then delete just one iteration of John, 10.
Is this even possible? A "DELETE FROM TABLE WHERE BadgeNum=10" will delete both.....
I have a simple database with our customers data. I'm using access database, dataset, and a datagridview. So when I selected a row, I want to make a new row with datas from selected row. Here is my code:
[Code]...
Working with datagrids and datasets etc.How do i create a new record which will insert the employeeid automatically into the employee filed on creation of the new record.The employeeid is a globalvariable (guserid)
View 1 RepliesHere's the code that fails on update with a fail on Insert Into syntax message:
SQLConnect = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:TechTest-NDT.accdb"
' SQLConnect = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:TechTestDatabaseNDTQA.mdb"
[Code]....
I am using VB.NET and below code on button click event.
Protected Sub ibtnSendInvites_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ibtnSendInvites.Click
Try
Dim emailList As New List(Of String)
[Code] .....
I want to throw exception if user tries to insert same record having same CourseID and CPUserID.
i've added new item called service- based database. after that, i've created doctor table, course table, exam table, and an empty table called exam_report to allow program selects randomly from the other tables.
how it works: first the user will get a form with many buttons: courses, doctors, exams, and exam report. second if the user click over exam report, a new form will appear with many columns. this form should has exam course - exam day - exam time - 3 doctors name who will observe the students.
behind code: the doctors shouldn't be the instructors of the course - the doctor has no appoinment in this day - the doctor has no hloiday and so on..
okay my code is the following :
Public Class Form6
Dim j, a As Integer
Dim d, f, h As Integer
[Code].....
I am trying to insert a new record into msaccess2003 mdb file my version is VB.net 2005, it doesnt show any error and also when i open my access db file, there is no record inserted, And also how can i format the date field it is giving me error, how can i convert the txtdate.text to date compatible with ms acess.[code]
View 1 Repliescan i ask how do i insert my records from my textbox to specific column name of my table
IsConnected("Insert into products values(" & _
Me.TextBox1.Text & ",'" & _
Me.TextBox3.Text & "','" & _
[code].....
I am trying to addd a record to a .txt file that happens to have the same couln name for two different columns. So i get an error message Duplicate Output Destination 'ST" 'ST' is my duplicate coulmn name, being used for Street and State poor design
code
Dim da As New OleDbDataAdapter("Select * From " & Me.OpenFileDialog1.SafeFileName & "", con)[code]...
There is nothing I can do about the .txt file it comes from a 3rd party and is there design,
I can upload excel to sql but when i upload again with old record for update and another record to insert new record [code]...
View 2 RepliesI'm having a problem inserting a new record into an Access 2003 table.The error occures at the line near the bottom with "ExecuteNonQuery()".scroll down in the second block of code.
Within the Incident Information Table
IncidentID is Text
InvStartDate is Short Date
IncidentDate is Short Date
Here is the code.
Public Class NewGeneralIncidentForm
Dim conn As New OleDbConnection
Dim incIdString As String = "0"[code]....
In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user.
I am creating some basic software for our manufacturing department. I am using Visual Studio 2008 using Visual Basic.The software has a user log in. There is a form in which the choose the worker name, the item they were making, how many were made, damaged, or received damaged from the supplierHowever when they click on the "Update" button to insert the record..i get my custom message that it failed and the record is not inserted. I put a TRY...Catch... around the insert query and it didn't generate an error message.I have been following the code in the OLEDB BASICS tutorial so I am not sure what the problem is at this time.
<add name="MFCTData"
connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\Data.mdb;Persist Security Info=True"
[code]....
I am attempting inserting into an Access database, and the insert is successful (when I open the database the data is there), but I'm getting an error: "The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship. Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and try again."
This is really confusing me. No matter what I insert, it still gives me the same error. And I don't understand why it's giving me an error even though it's working. Here's my codebehind:
Protected Sub Wizard1_FinishButtonClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.WizardNavigationEventArgs) Handles Wizard1.FinishButtonClick
[Code]....
I am attempting inserting into an Access database, and the insert is successful (when I open the database the data is there), but I'm getting an error: "The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship. Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and
View 7 RepliesI am using sql server 2008 as database server. I have created "AddTest" stored Procedure and using it in my app,
Dim cn As new SqlConnection(connStr)
Dim da As New SqlDataAdapter("Select * from dbo.Subjects", cn)
Dim ds As DataSet
[code]....
<div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;" id="_mcePaste">Partial Class _Default</div> <div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x:
[code]....
[code] When insCommand.ExecuteNonQuery is executed, an exception with Error # -2147217900 is thrown, with the detail of "In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user." At the time the error is thrown, this is what resides in strInsert: "Insert Into ScoutInfo (ScoutID, YearID, GSUSAID, FName, LName, DoB, Grade, Level, School, YearsIn, CurrentYear) Values (10000, 20092010, 123456, 'Jacobina', 'Lowe', '11/30/2009', 'K', 'Daisy', 'Thisone', 0, '20092010')" I've already verified that the Insert statement and datatypes of the columns match.
View 2 RepliesI'm trying to get the AutoID after inserting a record in to a DB. Does this code look right as Mydata is blank afterwards?
[Code]...
how can i insert record in specific column name..i've used this code it works but how can i insert my record in a specific column name?? here is my code in my btnAddRecord :
If frUpdate = False Then
IsConnected("Insert into products values(" & _
Me.TextBox1.Text & ",'" & _
Me.TextBox2.Text & "','" & _
[code]....