How To Select A Value In The Database
Jun 22, 2010
I am using Combobox, when i select the value in combobox, the date value should display in datetimepicker where date = combobox id
vb6 code
cmd.CommandText = "select distinct Name from T_Person where personid = '" & txtno & "'"
Set rs = cmd.Execute
[code].....
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Mar 23, 2012
have a table with following fields
Emp_id varchar(50)
Emp_Name varchar(50)
Emp_surname varchar(50)
[code].....
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Apr 8, 2012
I have a table which contains a list of products for a company. They input data about how much stock they have and also the level at which they want to be reminded that they need to order new stock.
[Code]...
I want to list all the true results in a form which the user is then able to navigate through. What would be the best way to go about doing this?
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Dec 15, 2011
I am making a window based application in vb.net. Now i have work in two sql databases, so i when the window opens it will show two databases..when i select first db then i can work in that particular db only..if select 2nd db then i can work in second db only..how to do that?
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May 1, 2009
I am currently writing a VB .NET application where I am trying to open 1 database, create a select statement and then post the results into another database file using Microsoft Access database 2003.
The code seems to stop executing at the statement cmdJetDB.ExecuteNonQuery()
I am using the following code:
Dim conn1 As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data source=C:Sample.mdb")
Dim conn2 As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data source=C:db2.mdb")
conn1.Open()
conn2.Open()
[Code]...
Question: What is it that I am not doing. I opened both connections, stated my two SQL statements, yet it is still not working. I really need to get this application working. Please Help.........
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Nov 29, 2010
I have 2 Database in my VB.net application. I am using 1st database for daily operations. I would like to send one of the table records to online database. How Can I do that? First database is MSSQL Online database is MYSQL. I have created connections already using MYSQL .net connector.
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Aug 30, 2009
my problem is want to use WHERE clause to extract only year that fulfill a specified criterion. My coding as below, the coding below is extract all the month,day and year. But i only want year only. I am using MS Access. My textbox(cbYear) can select January To December. Can anyone give me a guideline to correct the coding.
sql = "SELECT * FROM sumPercent WHERE plants = '" & yieldsummary.cbPlant.Text & "' AND [b]dates = #" & cbYear.Text & " #[/b] AND line = '" & ds.Tables("sumPercent").Rows(a).Item("line") & "'"
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Jun 1, 2012
This update command works in updating my mysql database. Another database I have doesn't have a idnum field. I'm looking for a command to select a row number in the database. For example, update row #5. How would I modify this command?
SQL = "UPDATE " & table_name & " SET " & _
"title='" & TextBox3.Text & _
"' WHERE idnum =" & TextBox2.Text
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Dec 28, 2008
im trying to gather information from 3 tables at once
[Code]...
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Sep 27, 2010
I need to insert data in a new column ,first I use select and do some calculations on the data,then I want this data to be inserted to the database in anew column I used Insert query but no data inserted
[ Dim sql, sql2, var As String
Using conn As New System.Data.OleDb.OleDbConnection
conn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\AymAN\Documents\Database13.accdb"
[Code]....
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Dec 15, 2009
When I try to add new datasource, the option 'database' isnt shown. Only Service, Object and Sharepoint is shown. This is done in VS 2010 Beta 2
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Feb 25, 2008
Ive got a web page so that the users select a day from the calendar and the date is input to a text box, the format is dd/mm/yyyy, it is the same format in the database table.
I want to select the data from the database when it is = the date in the text box but it is retrieving data in mm/dd/yyyy format. My sql is:
SELECT Booking.Date, Booking.RoomNo, Booking.Lesson, [NoComps] - " & students & " AS diff FROM Rooms INNER JOIN Booking ON Rooms.RoomNo = Booking.RoomNo WHERE booking.Date= #" & txtdate.Text & "# AND booking.Lesson = '" & lessonlist.SelectedValue & "' AND booking.Type IS NULL
how can i make sure it retrieves the data using the correct date format?
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Jun 3, 2009
As in today i click on the button it will display the item when i hit again the button it will still display the same item and last for the whole. On the second day, i hit the button again it will display other items and last for thewhole day again.
[Code]...
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Aug 29, 2011
for the first time i am havin this kind of issue, i tried some google'in Private Sub frmMain_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[Code]...
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Feb 15, 2012
I just want to select 1 random record from my database for example in my table1 i have a,b,c,d,e,f,g then everytime i click the button in my program it will output randomly between a to g then i can add another record from my database and if I make it a to x it will randomly choose between a to x, the random doesnt have any conditions.
Right now i've found some codes that will be very useful but i cant modify it so it will be connected to my database.
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim DT1 As New DataTable
DT1.Columns.Add("SN1")
DT1.Columns.Add("NAME1")
[Code]...
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Feb 20, 2012
If I select an item from listview, it will get all the records at the database and display it to richtextbox.
For example this is my listview[code]...
After I select it, the 2 richtextbox will be filled with diagnosis and prescription.
I don't have any idea how to do it so I don't have any codes to show yet but I was able to display the records from my database to the listview. The only thing left is when I clicked it, it will display the records.
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Dec 3, 2010
Trying to select an integer from an Access Database using an SQL statement in VB[code]...
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Oct 28, 2009
I have a VB6 application that is accessing an sql server 2008 database using odbc. The application also accesses an ACCESS database. How can I create a temporary table in my ACCESS database using a table from the SQL database. I have tried the following:
SELECT GLTransaction.* INTO TempAPEntry0 In C:DOCUME~1DONNPS~1.000LOCALS~1TempCSAReport2564.MDB FROM GLTransaction WHERE GLTRSource = 641;
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Apr 13, 2012
I have created a database.Now I have created a windows form in which i have added some combo boxes.I want to select the value of the combo box and when ADD is clicked on the form it should be added to the database.In textbox we do Textbox1.text to select the value.What will we do in Combobox .
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May 3, 2010
Using 'SELECT from' with value from a text box in vb.net with access database
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Apr 4, 2011
i want to allow user to select or find access database file when the software is executed/opened for the first time. after user selects the file and as he clicks open the software shows the full path of the file and then stores it with the provider and datasource in a txt file for future use.
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Apr 4, 2010
My application needs to be able to be pointed at different SQL Servers and different databases and I would like to provide the end user with a nice method of selecting both the server and database (the app is for use by other IT staff).Ideally, I was thinking of allowing them to browse to the server (with possibly entering credentials or even better, using their Windows credentials as the databases in question should be accessible to the relevant people via their AD account), and then listing the databases on that server allowing them to select one to use.
I would like them to then be able to easily change the server and database whenever necessary.I imagine I would then need to build the connection strings based on what they select but at the moment I have got rather stuck in just trying to create a form with some kind of Server Browser (I've not got as far as a database browser!).Failing some kind of server/database browser options, I would change to some simple text boxes where the user can enter the name of the server and database directly with some kind of connection verification button.
Finally, is it easy to connect to multiple databases on the same SQL Server at the same time? Is it just a case of creating and referencing multiple connection strings?I am using VB 2008 Professional and SQL Server 2005 Standard.
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Jun 5, 2011
I am using VB 2008 Express to connect to an Access 2007 database. I have a combo box called SelectYearMonth that is populated by the database. When I used the Access report VBA, I used the AfterUpdate() event to calculate a sum. I need to know how to do the same operation in VB 2008 Express using the SelectedIndexChanged event of the combo box.
When I made a report in Access using VBA I coded my calculation as:
Me.ExactReprintTextbox = DSum("Pages", "HBELP_FINAL_Q", "YEARMONTH = " & [SelectYearMonth] & " AND JOBTYPE = 'E'")
While this works great with Access VBA, this syntax does not work in VB 2008 Express. How do I code this in VB 2008 Express?
I need to calculate the sum of all "Pages" of a particular "JOBTYPE" in the Access database for the YEARMONTH selected in the combobox. I have a query in Access called "JobTypeExact_Query" that contains all the pages of that particular JOBTYPE that I need. What I need to do is limit the calculation results to the YEARMONTH selected in the combobox.
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Dec 27, 2010
I am trying to trap an error that would occur if the user in my database does not select a category from a combo box before saving the record.[code] Naturally the example does not work, but would like some help with this.[code]Categoryid is set up as not to allow null.type int
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Jun 15, 2011
I have to retrieve data in two TextBoxes but the data should belong to tokennum that I am getting from first text box. I have a total of three TextBoxes and one button. In a database called db1 I have a table named Table1 and two fields ser as serial number, tokennum for token number and name for name of employees.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim con As New OleDb.OleDbConnection
[Code]....
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Dec 21, 2009
I am trying to retrieve a password from an SQLite database. The id of the row the password is in is 1. I want to assignt his password to a variable called actualpass.[code]
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Feb 24, 2011
I posted a while ago about having issues with a database, and selecting a value from the database. I was told that there were things missing from my code, and I've not gone back and added the things I was advised to. Now, my code seems to be working more, but outputting the wrong value.
[Code]...
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Feb 12, 2011
Ive been learning to use visual basic doing this and i know the code needs clearing up but i made an app that is storring values in an mdf mysql datatable. I made the app so you will direct it to a database through a menu where you select the file.. This works allright on my machine but..When i put it on another machine with .net 4.0 installed it still complains about Mysql problems..So im guessing theres a part missing. Is there something i need to install on the other computer using my app?.
If so what?. Maybe theres another way i can connect to a database without haveing to install stuff on other computers to make it work?.
'Imports System.Windows.Forms.DataVisualization.Charting
Imports System.Data.SqlClient
Imports System
Imports System.IO
[CODE]..........................
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Nov 30, 2010
I am using VB 2008 Express to connect to an Access 2007 database. I have a combo box that is populated by the database. When I used the Access report VBA, I used the AfterUpdate() event to calculate a sum and place the results in a text box. I need to know how to do the same operation in VB 2008 Express using the SelectedIndexChanged event of the combo box.
The combo box is called "cboYearMonth" and is populated by my database, this is working correctly.
The text box that I want the calculated results to appear in is called "ExactPagesTextbox"
I have a query in Access called "JobTypeExact_Query" that contains all the pages that I need. What I need to do is calculate the total number of "Pages" limited to the YEARMONTH selected in the combo box. YEARMONTH is a value in every record in this query.
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Oct 23, 2010
How can I catch error if the data that user select not in database?
This is my code.[code...]
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