I'm using SQLserver 2008 and I have a below mentioned Query working successfully, now my requirement is I want to execute the same code in vb.net (Visual Studio 2010) it is a update Table command so how to convert and run in vb.net
DECLARE @Rt int
SET @Rt = 0
UPDATE DB.dbo.Sales
[code]....
I am trying to query a MSI to get the ProductCode from the MSI so I can later populate a script with the proper ProductCode.During debugging it "looks" like the database is open for read, however if I look at the oDB object I see this "Error = No further information on this object could be discovered" When it tries to do the OpenView on the SQL statement it throws an exception "OpenView, Sql" I believe that is because the MSI really isn't open for read?I have added the reference to the Microsoft Windows Installer Object Library version 1.0.0.0
Here is the code: (I pass the fully qualified path + filename of the msi)
Private Sub GetMsiProperty(ByVal sMSIFilePath As String)
Const sReadMSIDataBaseErrorStr As String = "ERROR: Could not read MSI database!"
Const msiOpenDatabaseModeReadOnly = 0
[code]....
I have some code which scans my Database for the table names and displays them in a listbox (ListBox1). Later on when the user selects the desired option(Table) in the listbox the code gets the text which the user has selected at loads that table into a Datatable.
DataDataTableAdapter = New OleDb.OleDbDataAdapter("SELECT * FROM " & ListBox1.Text, DataBaseConnection)
However I recieve "Syntax error in from clause"
how do i simply query the database and return values to my textboxes etc? all i can fiqure out is the default views but that is not what im after, also how to add data as well (lets say i have a text box with data and i wish to add it to the database)im sure its simple but i cant figure it out, in vba i just used the current sheets or tables but this is beyond me. i will admit it.
View 23 RepliesI have a database in access and one of the fields is 'Is Quick'. I have a query that filters all of these out. How would I get the data from that query in Visual Studio 2010 (Express). VB code please.
View 1 RepliesI am connecting to an Access database and using a parameter query with the LIKE operator to return all rows that match query. The string to search for is taken from a Textbox
sql =
"Select * FROM Allview WHERE Info Like" &
"*" &
CStr(TextBox1.Text) &
"*"
The query does not return any data in vb, but when run from access with same string, there is data returned.The connection to the database is done correctly, as I am able to return data with various other queries.
Partial code :
Dim
con As
New OleDb.OleDbConnection[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
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
[Code] my issue is that now i need two cases, first i need a query that will return the date created and modified of the table and i also need to know if its possible to query a list of table names in the database ordered by date created but that have a certain thing in their names. for example the database contains the following tables: [Code] and what i need the query to return is the tables that contain "Data", settings and employees are for the other functions of the program. so the query should return the 4 data tables in order of date created. but i have no idea how to go about doing that in the query, does anyone know how this is done?
View 6 RepliesI'm having a bit of a problem populating a collections class with the values from the database. Everytime I loop through a record in the WHILE DR.READ loop, the last record over writes all the other items in the collection. My returnVal collections has several of the same items despite the loop showing each individual record being added into returnVal.
[Code]...
I have loaded my database with one table under "Data Connections" in the "Server Explorer" pane.What is the standard / best-practices way to handle a simple query in a VB ASPX page?
My left <div> would be a set of form elements to filter rows, and when the button is clicked, the main <div> would show the columns I want for the rows returned.
Note: Answers in C# are okay too, I'll just translate.
I have connected a database query that I made using MS Access 2007 to my form in VB 2008. I know how to pull the fields onto the form and get the information to display on the form by clicking the binding navigator at the top of the form. My question is that is there a way that I could input the ID number in a textbox and click a button to display the rest of the field in some more textboxes
View 1 Repliesi have a table named item_details.i have some field named item_id,item_name,quantity,supplier_name etc.i want to see all details as per the item_id given in a textbox.i also want to see details as per the item_name is given.i can use 2 forms to view this type of query..one for item_id..and other to view from item_name.but..i want to use tabcontrol..in 1 tab i want go give the item_name...and want to get the details.and other tab i want to give the item_id...and want to get the details....and whenever i gave wrong information.an error message will be shown.
[Code]...
Is there any way to retrive data from Database with out writing any sql query . I mean i want to read data into my label fileds with out writing any query in sqlcommand. me how can i do this in c# or vb.netUpdate
protected void Page_Load(object sender, System.EventArgs e)
{
string connectionString = @"Data Source=Data
[code].....
PROBLEM: I want to only show specific database records based on serveral combo-box inputs from a user. I'm looking to query an Access database from within a form I've created for viewing simple Jpegs of CAD files and pointcloud data. I've never worked with table adapters, SQL statements, or much in the way of databases before and I'm lost.
Do I add a new query and do what I want from a configuration wizard somehow? That method gave me a toolstrip button with no combo-box.Should the combo-box be bound to the table or should it stand alone?Can this be done without the use of a wizard (purely in an event) I've been told what I'm looking to do is rather simple, I'm just unable to find syntax that has worked for me.
I have created a bookshop website with database, I need a search engine that will search the database records and present the user with results according to the keyword.I have created the page with the text search box and search button.[code]
View 2 Repliesi created an insert query to add data to my table.i am using SQL CE database. When i run it and insert it is showing an error which as follows.
[Code]....
I have searched everywhere to find a solution for this. I am a beginner and in a tutorial i have seen they did it with access DB without any problems. i did the same but for SQL CE DB, i probably did something wrong or missed some steps.
I have the code below, what i have is three volumes called vol2 vol 3 and QRH (these are parent nodes in a treeview), these nodes are named in my database in a volume column 2,3 and 4 respectively. what i want to do is run a query that populates a treeview with another column depending on which parent node is clicked.
A drawing
Volume Parent node name (in treeview) child node
2 vol2 flightpath
3 vol3 takeoff
4 QRH landing
2 vol2 data
and there are more than one child node that has volume 2,3 or 4 what i want is if vol2 is clicked this is oppened
vol2
---Flightpath
---Data
etc etc
below is the code i am working on:
If tvwFCOM.SelectedNode.Text = "vol2" Then
Dim Volume As String = "2" And
Query = New OleDb.OleDbCommand("Select Title From " & cmbFamily.Text & " _Chapters Where Volume = '" & Volume & "'", AccessConn)
End If
If you're not living on the edge, you're taking up too much room?
I am having a problem with the project I am working on. The project will have more than one query; however, I cannot get the simple one to work yet. I have a form with two text boxes and a button. I also have an Access database that I want to be able to connect and query to.
The database will have fields such as student name, address, test1 and test2. I want the form to allow a user to put in scores for test1 and test2 in TextBox1 and TextBox2, then query the database to say
[code]...
Here is the code:
Function getData(ByVal id As String)
Dim reader As SqlClient.SqlDataReader
Dim statement As String
[code].....
i am doin project using vb.net 2005 and using this sql query for connection
sql = "select username from login order by username"
con.ConnectionString = "Data Source=" & hostname & "; Initial Catalog=college;integrated security=sspi"
but m getting the following error:
Cannot open database "college" requested by the login. The login failed.Login failed for user 'CI4Admin'.
HI would like to count all the records in my query below and output the results to a text box. [code]...
View 3 RepliesI created a Query in a database in Access. I want to attach it to a DataGridView in VB2010. I then went to VB and connected to a Database. Then I dragged a DataGridView onto the form. Up came a pop-up menu. I Clicked on Choose Datasource, Add a DataSource,clicked on all the next buttons, selected Tables and Views checkboxes and clicked finish.In the next view up pops a menu that lists my Database and it's tables, but not the created Query. The Query does exist in the Database and I am accessing the correct version.
View 3 RepliesI am having problems implementing this query in vb.net.The error message that I am getting is with the "as" in the first line.This is a local sql compact database 3.5
cmd.CommandText = "UPDATE player as a " &
"SET starter = 'TRUE' " &
"WHERE NOT EXISTS (SELECT '1' " &
[code]....
i'm trying to make a query to a sql database, so when the user enters the id, the columns related to that id will be displayed. but, im getting an error: "Object reference not set to an instance of an object"
the code:
Code:
Try
TextBox1.Text = InputBox("Enter the Id.", "fsdf.")
query = "select * from Students where Id = '" & TextBox1.Text & "'"
[Code]......
How do I make a parameterized query in the database with VB.NET? remember to mark the replies Welcome to the All-In-One Code Framework! If you have any feedback,
View 1 RepliesI am having a problem with filling a combobox with unique values.Im not very good at vb either so I will explain what I have done so far.
1. I added a combobox to my form called Combobox1
2. I clicked the little triangle widget thing on the ComboBox1 set the dataset to MyDATASETDataSet1
3. Display Member: CurrencyCountry, Value Member: FCode, Selected Value = None
4. I fill MyDATASETDataSet1 when the form loads using:
PricesTableAdapter.ComboBoxQuery(CurrencY_DATABASEDataSet1.Prices)
ComboBoxQuery =
SELECT DISTINCT [CurrencyCountry], [FCode] FROM [Prices]
The form does not load, i get the error: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.If I replace ComboQuery with Fill Query (which is the default fill command) it displays results....but not unique results, i see the same items being repeated throughout the list in the combobox.I guess my questions are:
1. when you fill a dataset do you need to select all the fields when you are creating your query?
2. if i simply wanted to perform the following lookup:
SELECT DISTINCT [CurrencyCountry], [FCode] FROM [Prices]and set the combobox Display Member: CurrencyCountry, Value Member: FCode how would I do this in the code?
3. how can i change my query to display only unique values, distinct doesnt seem to be working?
I have an application that uses an *.accdb file as the back-end database. Connecting to and retrieving data from the access file is not an issue and is working quite well. However, as a precaution, I have the application first check to make sure the database file exists in the application's folder while it loads up. As a convenience, if the database file is not found, then the application creates a new (structured, yet empty) database. The creation of the actual *.accdb file and the creation of the tables is complete and is also working well.
View 1 RepliesI am trying to write VB.NET query without writing SQL stored procs. I have already gotten many dataset text queries to work. But I am having trouble with getting this scalar query to work. All I want to do is to get the result of this T-SQL query. How can I code this successfully? select (DateDiff(w, '1/1/' + '2011', getdate())) / 7 AS SELECTED_WEEK (What this code does is it returns the current week of the year). And will this query above return the value as an integer datatype or string?
I tried your answers but it gave me this exception error:
System.InvalidOperationException: ExecuteReader requires an open and available Connection. The connection's current state is Closed.
I have a query in Access called q1. I want to modify q1 from my vb.net code. How can I do so?
View 2 Replies