Select Query Error While Retrieve Data
Mar 11, 2010
CODE:
And the following sub routine is load in the Listbox_selectedindexchanged event
CODE:
And listitem class
CODE:
And subsequently I want to Design the select query by adding the three column i.e. First Name, Middle Name and Last Name in the Listbox and by selecting the list item that will show in text box.
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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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Aug 13, 2010
I am new to VB and trying my hand at the below code. I am trying to determine the number of records for each possible combination. Depending on the outcome of the number of records groups may be combined. I am not able to find the record count for each grouping. Can you please look at the code below and suggest what I am doing wrong?
[Code]...
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Sep 8, 2010
i created a database in my visual basic . and in this database i created 1 table...
i created also a query which is calculating the SUM of a colonm..i want to know how i can do to retrieve this data inside a textbox whos is on my program..ans of course i want that data to be update everytime i inserte data in this colonm...
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Apr 11, 2011
i want 2 select data from data gridview and want retrive that data into another form in to the textbox ...is it possible ? i 'm doing like this for that
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.[code...]
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Jan 11, 2010
I am using VB express 2008 with MS-Access as database.How i can retrieve data from a table having a column containing checkboxes on the base of Checkboxes checked or unchecked. Column PAID is having checkboxes.[code]...
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Jun 3, 2011
i hve create combobox & text box and add database source to my project...i know how to binding data or load data to combobox using SELECT query..but can i change SELECT to INSERT query cz i wont when i type data into textbox,data will be in database...second..can i binding without add database to project..i mean mydatabase in debug folder..i hve problem binding data if database is not in myproject..
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Jan 29, 2010
I am using the following Select Statement to retrive data from my .csv file database:
Code:
Dim comm As New OleDb.OleDbCommand("Select *, Left([Street Full Address], IIF(InStr(12,[Street Full Address],'-')>0, InStr([Street Full Address],'-')-1, Len([Street Full Address]))) as StreetFullAddress From " &
[Code].....
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Feb 16, 2010
Using vb2005 and .Net 2.0. I've been trying for some time to get my query to work. I've posted my issue on several forums but no one been able to asssist me. From code behing I need to query Active Directory and have following issues:
1. I need to select only where "title" is empty and
2. I need to do a LIKE on sAMAccountName
[Code]...
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Sep 3, 2010
I am trying to retrieve information from one row that has four columns(name,company,address,phone) so that once it is displayed in 4 different textboxes, I can transfer to a word document.
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Nov 26, 2010
I am trying to create a LINQ query statement that retrieve intersecting data from 3 datatables (dt, dt1, dt2). My first attempt to do so with the following LINQ query statement was successful: [code] However in my design, I would need the LINQ query statement to be dynamically generated, because I want a user to be able to retrieve intersecting data entries from VARIABLE number of datatables. In this case, the first option is not as good as the "INTERSECT" query operator, with which I can just easily connect each SQL query statement with a "INTERSECT" operator. The problem is that my second attempt using the "intersect" operator fails, and after many trials and errors I still can't get it to work. [code]
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Jun 12, 2011
in below code there is syntax error in from Clause but i think every thing looks fine iam using access database thx and relation is fine between thes two table
Public Function GetGridData() As DataTable
Dim dt As New DataTable
Try
[code].....
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Jul 8, 2009
I want to make a report with a query "Select * from StudMaster where StudID IN ('S0001','S0002','S0003')"For this I created a parameterised command object in data environment and set the query as:Select * from StudMaster where StudID IN ( ? )
Then I called in vb code as:Dataenvironment1.command1 ("'S0001','S0002','S0003'")
Is there anything wrong in it? It is not working..Plz help me out, how can I make it run.
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Nov 8, 2010
i am trying to bind a dropDownList control to a select query that has a parameter.the query itself runs fine on sqlserver database when the paramter is replaced with an actual datetime variable.the basic query is: SELECT DISTINCT DeliveryZone FROM dbo.tblComplaints WHERE (DeliveryZone IS NOT NULL)AND (DeliveryZone NOT IN ('**', '??', 'EE', 'T', 'M'))[code]
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Feb 15, 2010
I am using 1 listbox and 4 text box. I want to retrieve data from my database i.e. ms access database into listbox I am firing the select query by using this code on Page Load event and list box selecetedindex change event which is following. [code]...
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Aug 9, 2011
I am using/creating a DataTable so the "enforceConstrains" property is not avilable for DataTable.Error message: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
Windows Form Load Event:
Private Sub Expenses_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
expensesGV.DataSource = listExpenses()
expensesGV.Columns(0).Visible = False
End Sub
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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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Jan 11, 2010
ODP.NET Query - Error manipulating data from Stored Procedure??
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Dec 1, 2009
I'm trying to update an access .mdb file. The file contains one table with 115 fields. I have estabished a connection to the database. I'm able to select the datarow I want to update. I can see it when I debug the code. I change two fields in the datarow by using thier index.
[Code]...
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Jul 23, 2011
I want to select to multiple sql tables using select query in vb.net..I have 2columns in sql table..I have tried this query.. But i'm getting error.
TextBox11.Text = Val(27)
cmd = New SqlCommand("SELECT outside,power FROM vijay21 INNER JOIN vijay22 ON vijay21.outside=vijay22.outside WHERE outside BETWEEN " & Val(TextBox11.Text) & " AND " &
[code].....
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Dec 12, 2010
I am using select command for one of my button
Dim edit1 As OleDbCommand = New OleDbCommand("select * from [exporter] where exp_id='" & t1.Text & "'", con1)
now:-
t1 is a textbox
and in my table exp_id is "Number" now when i run this i get an error at the time executing reader (Data type mismatch in criteria expression.) but when i change exp_id properties to "Text" it run's properly
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Sep 25, 2011
I use visual basic 2010 professional edition. I am working on a project on it with access on the backhand. i want to view the data in datagrid control for the stock management. I also want to setup a query in the query builder which will search the database according to the ID but i cant get it right i dont know why. i type in the form filter this: LIKE @ID + '%'. But when i click somewhere else, an error appears which says: Data type error in expression.
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Feb 29, 2012
When Creating a query using the sear Criteria Builder . I keep getting the error : "The schema returned by the new query differs from the base query" what does that mean and how do i avoid this problem in future
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Jul 14, 2010
I am puzzled by why it does not retrieve the data and keep saying i have a error "InvalidCastException", i am currently doing these in compact framework and is totally new to it, i searched around looking for a way to get data into a listview base on what little i know about java . these are my creation of table and inserting during formload
[Code]...
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Aug 5, 2010
I have a log table where i need to insert the query which causes errors in the code. I have a common function "WritetoLog".[code]My Question is from the ex how do i take the query which causes error. eg. If the insert command is giving exception i should get like this SQL Query causes error : Query + ex.Message..SQL Query causes error : Insert into temp("1",'Anitha','TeamLeader',) + Incorrect syntax near ')'
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May 24, 2011
I am trying to Query a table with data from another table and return a filtered result
Dim i As Integer = 0
For Each lrow In dtlist.Rows()
Dim lat As Double = dtlist.Rows(i)("Latitude") 'CDbl(Me.SubjLat_txt.Text)
Dim lon As Double = dtlist.Rows(i)("Longitude") 'CDbl(Me.SubjLon_txt.Text)
[code]....
Obviously doesnt work but the idea is thats the Value i need to put in the Value Column of dtlist In short the project, loops through one table(dtlist) of address's and gets the distances of it from the address's in the second table(dtsold) then gets the higest value from dtsold within a certain distance?
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Dec 10, 2009
I have a parameter query in access (2007) in which I retrieve one value. How do I access this query in vb.net and request the data to be sent back to me?
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Aug 27, 2010
The database:
"ID (Primary key)" | "Title"
0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
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May 29, 2009
i should say hi experts :D . Help me with this pretty code :)
The database:
"ID (Primary key)" | "Title"
0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
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Mar 19, 2010
Is there a VB.NET equivalent to the C# var keyword? I would like to use it to retrieve the result of a LINQ query.
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