VS 2010 Records In Table Are Determined By Records In Another Table?
Apr 22, 2012
I have a database with 3 tables: Student, Unavailability and Duty.The fields for Student are entered in a form I have. One of the fields in Unavailability is filled by a form, the other fields are an autonumber and a foreign key to the Student table.ow I want records in the Duty table to be created and automatically filled in depending on what the values of the fields are in the Student table.For example, If the Boarder field in the Student table is 'yes' then I want the Duty Number field in the Duty table to be '1', '3' and '4'. If it is 'no' then I want the value to be '2' and '5'. I recognize it will have to create several different records to incorporate the different duty numbers for each StudentID. Obviously this will require an if statement, however this is my first time implementing a database with my limited experience with programming and Visual Basic, so I don't know how to refer to the specific fields in a table and set the value of other fields depending on the data in other fields.
View 6 Replies
ADVERTISEMENT
Mar 27, 2012
I do this in Oracle databases just in a snap, but now I have to do it in VB using ADODB and I don't know how to do it.
I have two Access 2007 tables. Table A contains: Col1 (text), Col2 (text), Col3(date), Col4(amount), Col5(text)
Table B contains Col1(date), Col2(amount) What I need to do is to insert into table B the records of table A (col4 summed) grouped by date of table A. The date is a variable contained in a text box so it cannot be hardcoded into the SQL statement.
View 3 Replies
Mar 27, 2012
I have this piece of code wich works perfectly when inserting records into one table using records from another table. My question is that now i need to create another table by using records from 3 other tables (tables are related). Can i use aliases on the column names, like on Oracle SqlPlus? How will be the syntax of the 'INSERT INTO SQL statement?
Dim MyConn As ADODB.Connection
Dim MyRecSet As ADODB.Recordset
Dim tmpSQL As String
MyConn = New ADODB.Connection
[code]....
View 1 Replies
Dec 28, 2011
adding the records to Access table which has been entered in the form in vs2010.
When the user fills in the forms the data should be saved in Access table.For eg if the user enters name,age,address in form the same should be saved in access table which has name,age,address fields.
View 5 Replies
Mar 12, 2011
I have text boxes for each field in my sql database but I was wondering how to scroll through the records using the bindingnavigator.
View 5 Replies
Apr 11, 2011
I've found a sql string like: "SELECT Count(*) FROM table"My question is: how can I use this string and get the result into a variable in VB2010? I used to program with VB6 for years, but now things are very different.
View 1 Replies
Jan 5, 2012
How To Copy Specific Records from a Table to TempTable Then TempTable's Content Display in GridView
View 1 Replies
Jun 12, 2011
just wondering how do i transfer table's records to another table??i'm wondering where do i put the queries, or am i gonna put it in my stored proc?
View 3 Replies
Jun 11, 2011
I have 2 tables one is called Product Table and the other is called item table the item table is in gridview I can get the product primary key into the itemtable using a comb box but how do i read the rest of the information for that record into the item table from the product table.
View 2 Replies
Mar 17, 2011
I'm using VB.net 2008 and I just want to know the syntax or the command that gets the number of records in a table.I saw numerous syntax on the net like this
count = " SELECT count (*) FROM payroll_table "
but it doesn't work for me.
View 6 Replies
Mar 6, 2009
I try to delete all record in a table (.mdb msaccess) and I have the next code:
Me.Validate()
Me.Db1DataSet.Tables("tabl").Clear()
Me.TablAdapter.Update(Me.Db1DataSet.Tables("tabl"))
Me.Db1DataSet.AcceptChanges()...
But this don't change my table...
View 5 Replies
Jun 8, 2011
a.Create a database named "techdb" and create a table as "Personal" with Employee No, Name , Age & Salary
b.Insert 2 records to the table
c.Design a form in VB.NET e to Add, delete and Update records
View 10 Replies
Feb 21, 2011
I am a asp.net convert to VB.net and very new to VB.net(visual studio) I am trying to insert some records int a table. It seems the same code in asp.net does not work in VB.net. Here is an example of what I am trying to do
Dim Conn as New SqlClient.SqlConnection
Dim cmd as Ne SqlClient.SqlCommand
Conn.ConnectionString = "Data Soure......yada yada yada..."
[Code]....
View 2 Replies
Nov 23, 2009
I'm getting an exception error when trying to insert a record to a SQL table in VB.NET. Following is my insert command.
cmd.CommandText = "INSERT INTO RunnerDB VALUES ('" & txtLast.Text & "', '" & txtFirst.Text & "', '" & txtMiddle.Text & "', '" & txtAddr1.Text & "', '" & txtAddr2.Text & "', '" & txtCity.Text & "', '" & cmbState.SelectedValue & "', '" & Integer.Parse(txtZip.Text)
[Code] ......
cmd.ExecuteNonQuery()
I am getting the error on the cmd.ExecuteNonQuery()...it says: Syntax Error near ','. I can't find the problem.
View 1 Replies
Jun 9, 2011
im working on views that can help me navigate through records in a table. i have managed to execute an sql string to select the table i.e "select * from Users".i however want to build a "Previous" and "Next" command on the view but im mixed up on the navigation [code] Now all i need is code for going forward or backwards to a record.
View 1 Replies
Mar 16, 2011
I'm trying to delete a number of records in a table from the last and forward. My idea is to use sql like this: delete top " & variable & " * from table where ID = something It gives me a general sytax error. Is it at all possible? Fuga. Edit: I also have the order by statement there. I just forgot to put it in the question.
View 5 Replies
Mar 30, 2010
I want to return the top 5 records of a table in a dataset for datagrid view. The following does not work.
DataGridView.DataSource = DS.Tables("TABLENAME").Select("SELECT TOP 5")
View 4 Replies
Mar 1, 2011
Programmatically using vb.net, could we export all records of a sql table into a txt file at once?
View 1 Replies
Mar 27, 2009
copying some record from a table in the same table,changing only the fields of the data(month);- copy last month record fields, and the new records have to date, last month+1(actualy month);- i wish to be a button, like update or copy, to do this;- new filds are added every month;- how i do that?
View 16 Replies
Apr 8, 2012
i have a datagridview with (a lot of) rows. With a click of a button I add them into a table. Everything works fine. I want to create a log of the records that have been added into the table.
[Code]...
View 5 Replies
Apr 1, 2009
Is it possible to have a quick and easy way of retrieving the last 10 records from a table?
Currently what I have been doing is retrieving all the records then one-by-one cylcing through each record until I have the last 10. To me this seems to have a lot of over-head reading each record. I just wondered if there was a quicker way of doing it.
View 2 Replies
Jun 12, 2012
I'm trying to connect foxpro table (dbf) to VB.NET. I'm trying to display the records of that table to listview in VB.NET. Here is my
I got an error message here, the error says "cannot open the file"
vb.net
Imports System.Data.SqlClient
Imports System.Data.OleDb
Public Class Form3
[Code].....
View 5 Replies
Jun 9, 2011
Relatively new to VB.NET coding. Am creating a pretty simple console application that needs to insert over 50,000 records into an Oracle table (OleDB connection). I tried 3 different methods so far: Individual INSERT, insert using a dataset, & using INSERT ALL (commit every 25 records due to # of columns). It seemed like most articles/posts I read recommended the dataset approach, but the INSERT ALL code was definitely the fastest by far.
View 15 Replies
Feb 1, 2010
I would like to insert records a user selects from a gridview using check box column here is my code which inserts the first record then on the second interation it gives the error."The variable name '@Customer' has already been declared. Variable names must be unique within a query batch or stored procedure." [code]
View 1 Replies
Apr 20, 2010
I want to iterate through the records in an SQLCompact 3.5 data table and combine the field values into a string.The database file is connected to the project.I created a dataset that contains the tables from the database.If I drag and drop any datasource table as a grid onto a form I can view the data.[code]I have tried using the tableadapter.Ran into errors when the Date2 value = DBNull, never could get around those.I've tried dataview and datareader on the dataset.datatable but never could get these to load any data rows.I could sure use an uncomplicated unconvoluted way to simply read the rows of data in a database datatable.
View 7 Replies
May 17, 2012
I have a form that is used to navigate through records in a table one at a time. The form generates the number of textboxes required automatically. Navigating through the records is easy enough, but when I click the update button it comes up with the error: Object reference not set to an instance of an object.
Here is the code I have for when the Update button is clicked:
Dim con As New MySqlConnection
Dim da As New MySqlDataAdapter
Dim Query As New MySqlCommand
[Code]......
View 10 Replies
Jun 22, 2009
Like we can retreive all the records from a table using this method:
While (Not rst.EOF)
....
End While
How to retrieve all the records when using OleDbConnection?
View 1 Replies
Jul 31, 2011
I have a table called tbldebt which I am trying to use the binding navigator to display only records that match the curent username the following code works but displays all users records?
Dim dbConnection As New SqlConnection(My.Settings.loginConnectionString)
dbConnection.Open()
' create the data adapter
[code].....
View 13 Replies
Jun 17, 2009
[Code]...
I could not get a reply for this from someone. I tried something like this and it worked well for insertion of records from LIstView to table. This code does not allow duplicate records due to ExecuteNonQuery function. Like if i try to insert another record with FirstName John it gives error at ExecuteNonQuery function.
[Code]...
View 11 Replies
May 15, 2010
I am rather new to vb.net using SQL CE. This is using 3.5 framework. I am trying to use a button to insert records into a table in a SQL CE database. Rowsaffected returns a value of 1, but when I preview the data, the row is never inserted. The sql statement I am using uses hardcoded values only because I am trying to get this to initially work. Once I can get the insert statement to work, it will use variables based on user input.
Here is my code that I am using:
Private Sub cmdInsert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdInsert.Click
Dim connstr As String
Dim rowsaffected As Integer
connstr = ("Data Source =" _
+ (System.IO.Path.GetDirectoryName(System.Reflection .Assembly.GetExecutingAssembly.GetName.CodeBase) _
+ ("jhepfner.sdf;")))
[Code] .....
The original database that I am using is c:jhepfner.sdf. When I run this, connstr shows:
Data Source =Program Filesjhepfnerjhepfner.sdf;
In server explorer, it shows the connection string as:
Data Source=C:Documents and SettingsCompaq_OwnerLocal SettingsApplication DataTemporary Projectsjhepfnerjhepfner.sdf
View 3 Replies
