Increment Row In Data Table?
May 3, 2011How to increment to the next row and add a new member if the if condition is not met.[code]...
View 2 RepliesHow to increment to the next row and add a new member if the if condition is not met.[code]...
View 2 Replieshow can I get the last ID (Identity Increment) in my table. diferents answer came up. I simple said, do a query and you will get your ID.But today I decided to do something diferent, and here goes my approch, my code: Sub Button3_Click(ByVal sender As Private
[code]...
I have a database containing usernames and "points". I need to increment the "points" at will. I have the table connected to a sqldatasource.
Here is my current code:
With Users
.UpdateCommand = "UPDATE Users SET points = points + 1"
.Update()
End With
This works great, except, instead of just changing the entry with the username specified by a QueryString, it changes all of the entries and adds one.The sqldatasource has the following select command:
SelectCommand="SELECT * FROM [Users] WHERE ([username] = @username)"
This command makes it so that only entries with the querystring specified username are displayed. This is really my first attempt at SQL.
[code]....
Why when I add new item in my database table it will show negative increment?
how can i change it to positive increment or use only integer increment.
I have a teradata backend that uses auto increment. The form is databound i.e dragged a column to the form which gave me the navigation header etc.The problem I'm having is when user 1 opens a record the auto increment goes +1, let's say we're at 45 now, then user 2 opens a new record and it also goes to 45 as user 1 has not saved. Why is the databinding not locking 45 when the first user opens it
View 8 RepliesI have an SQL statement which i need to code in vb:
CODE:
Notice the fields prodno1 and prodno2 in the table structure.. this is part of a number of sql statements i need to run and put inside a loop. my problem is i want to automatically use this same code such that on the next loop, this sql statement is going to be:
CODE:
Note that in this "2nd loop"
- the table name is now r3 from r2 in the first SQL statement
- there are now prodno1, prodno2 and prodno3 instead of just prodno1 and prodno2
- in the WHERE clause, the p.prodNo becomes p.prodNo2
And so on and so forth.. so for the 3rd loop
- there's going to be r4
- there's going to be prodno4
- in the WHERE clause i will use p.prodNo3
I have 2 question to ask about vb.net. Now i'm using Visual Studio 2005 with connection MySql...
1. how if I want to passing the data from database to the textbox by SEARCH button. I Have 1 SEARCH button and 3 textbox [txtname],[txtage],[txtaddress] and to pass it also on datagrid...
2. I have a id_Student starting with S001 in database...and I want the id is increment when new data is added. The id_Student is display using lblID_stud
What i am doing is trying to manually increment a data column with a range of my choice. Say i have a range from 1 - 10. Now with my update query i want to update a column with 1,2,3,4,5,6,7,8,9,10 UPDATE TABLE SET Type = [min_range] to [max_range] WHERE Po = 'A' AND Loc = 'F'; WHERE Po = 'A' AND Loc = 'F' will return 10 records but i want type to be 1 - 10 for those records couple of days trying to get this work and i am using VB 2008 .NET.
View 1 RepliesDo we have increment operators in VB.Net? I want to use post increment and Pre increment operators in VB.Net.I want touse the statement like, i++ and ++i.
View 5 RepliesPublic Class Projectile_Motion
02 Dim initialHeight As Double ' Holds beginning height
03 Dim initialVelocity As Double ' holds velocity
04 Dim time As Double ' holds time
05 Dim heightVal As Double ' holds height at different intrvals in time
[Code]...
I have finally figured out how to download a file with background worker and downloader. Now the form does not freeze.. I have only one problem left now... How do I get the progress bar to increment in tandem with the data flow? I have listed my full code below. Towards the bottom where the DoWork() sub resides, I am just a few lines short of this year long goal.
Imports System.IO
Imports System.Net
Imports System.Text
Public Class Form1
[CODE]...
basically i fot a form with 5 questions u could say and i got a toolstrip with a progrss bar wat i want to do is as each question is ansered in reality by the user i want the progress bar to go up.
min value is 0 max value is 100 as ther is 5 questions as each questiion is ansered the bar shoul go up by 20
so they anser Q1 it goes up to 20 they answr Q2 it goes up to 40 until they anser the last questyion and the bar is full
I have three table and I want to put the three table's data in one variable and from that variable i will produce the datatable and then want to write the data in CSV file.I am Following this step..
Void
GetDetails()
DataClasses1DataContext
[code].....
Cannot get list box to display each increment and cannot get data to save correctly in order to display.
Public Class Projectile_Motion
Dim initialHeight As Double ' Holds beginning height
Dim initialVelocity As Double ' holds velocity
[code]....
I have a login form that consists of 2 text boxes: txtUser, txtPass. Now these are not bound to any data table & I don't what them to be bound. When a new user enters his user name & password, I want to add these on a data table that has two columns: User, Pass. Data table information: Data Source = Login.accdb, Data table = LoginTable, Connection = LoginCn. I use visual basic 2010. So how do I do this?
View 1 RepliesI have this code to edit the datarow of my table adapter but t doesnt update the table. I think i have a missing code that's why but i cant figured it out. by the way im using vb2008 and SQL as my database. [code]
View 3 RepliesI currently have this working already for one of my combo box's, but when i try to use the same code i get this error ''There is no row at position 6.'' . The are 2 fields in the table asset_type_id, asset_type_name', im trying to dispaly the values in a combo box for the field 'asset_type_name.
the code for ' Friend Sub RetrieveCustomerInformation2()' works but the other friend sub throws the error.
Imports System.Data.SqlClient
Imports System.Data
Imports System
Imports System.Data.OleDb
[Code]...
While am using the below code it was throwing an exception update unable to find table mapping [Customer] or data table customer.
[code]...
I have 1 access database with 3 tables How do I make the combobox get data from one table and input it to another table?ex.I have a table with all my Carriers and another table with jobs that are assigned to Carriers?
View 3 Repliesi have a combobox on the form and a datagrid viewer .no i want to display the table which selected on combo box..
View 1 RepliesI have a form that fills a table adapter with this:
Me.Scratchpad3TableAdapter.Fill(Me.MDRDataSet.scra tchpad3
and what I'd like to do is when users edit something on this form that they post the changes to a table called exceptionsedit which is not part of that dataset. What I don't know how to do is to how to insert those edits to the exceptionsedit table.
i need to copy all the rows with data from a existing table to other existing table through button click
View 13 RepliesI am using Visual Studio 2008 and Sql Server 2005
I want to update a table using values from other table I have written a query but it is giving error
"Cannot insert the value NULL into column 'Quantity', table 'Stationarymgmt.dbo.Item_Master'; column does not allow nulls. UPDATE fails."
temp table has following columns
Item_Code,
Quantity,
[Code]....
Currently using VB 2008 with MS Access 2003.I have Two Tables with Names - " Company_Data" & "User_Data" in which i have the following columns.....
Company_Data
Name|Age|Department|Salary
User_Data
Name|Age|Department|Updated On
Now, Is there any code that can do the following:when i select a name in the combo box on the form (The list in the combo box is from the Name in the Company_Data table) and click update.It should copy the Details of the Record from Company_Data to User_Data with the current date in "Updated on" column. Note that the columns are not exactly Same. (Salary is not necessary in the User_Data)?
I want to copy Header Data from one table to another. I know how to do this if the table data is exactly the same, but I need to generate a new HeaderKey for the destination table.Example - I am copying SalesOrder Header Data into the PickList Header Table, but I need to also add a PickListHeaderKey when I do so. It cannot be the SalesOrderHeaderKey which will be copied also.
Source Table (Sales Order)
DestinationTable (PickListHeaderTable)
SalesOrderHeaderKey [code]....
How can I edit this command to include the PickListHeaderKey, which needs to be inserted at the same time or before the rest of the data is copied?
I really need your help. I want to query in a table in MS SQL using a data in another table.This is the query I've constructed : "SELECT TABLE1.FIELD1,TABLE1.FIELD2 FROM TABLE1, TABLE2.[code]
View 1 Replieshave made the data table in vb code, and it works flawlessly. It gets its values from labels which are part of a calculation.It shows the information to the user in a datagridview. Now i would like it to add new rows and fill them in if the user has already entered the data once and it has been logged in the datagridview.here is the current
'DATA TABLE
Dim Table1 As DataTable
Table1 = New DataTable("CF Log")
[code].....
i want to create a table that include a current year data and as well as previous data to be compare. here is the example of the table that i want to create: but i want to compare one of the annual data with the previous year. as example i want to compare between the data of current AR of 2007 with the current AR for 2006, Current AR of 2006 with current AR for 2005 and go on~, but i have no idea how to do it.
View 1 RepliesI have two data tables. the second related to the first. Using a datagridview for the first table I am able to enter and save data ok. if I run the code twice in a row the data is still there. When I edit the data in the related table in it's own datagirdview the data is there and displays correctly, but on running the code a second time the related data is lost. In both cellendedit events I am using
Me.table.Update(Me.FigsDataSet.table)
Me.Validate()
I have a data logging application that stores data in a table in a MySQL database. Data with a TimeStamp is logged into the table anytime the data from the sensor changes. This means that there maybe 2 seconds between data points or there maybe 20 seconds between points depending on how the data is changing.
When I need the data I have 2 dates and use this command to fill a table..SELECT FROM myTable WHERE timeStamp > date1 AND timeStamp < date2 This gets all the data that has a TimeStamp between the given dates, but in most case the first date in the returned table will be after date1, so I need to get the data from one row before the date returned in the table to know what the data was at date1.How can I get the data row that immediately precedes the returned data set?