So I have an application that queries a database for something like a social security number. Originally, the connection was established programmatically using ODBC. Now, I want to use the data source option built into Visual Studio.
View 2 RepliesHere's a part of XAML of the application I'm working on:
<ListView Name="lsvCustomerDetails" ItemsSource="{Binding myDataTable}">
<ListView.View>
<GridView>
[Code].....
Is this code correct to fill this table? If not, why? Honestly, I've found several perspectives on how to do this sort of thing, some of which are linked below:
From switchonthecode
From csharpcorner
From Allen Mack's blog
I`m using oleDbConnection in order to Select a BLOB data from Oracle column, and I have to stick with this type of connection since all my application is using it.
After I used the following code, I got the error: unspecified [code]....
I refreshed my data sources to include additional items from the SQL Server databases and it appears that my entire data source from my VB.NET project disappeared.I am using Entity Framework. I may have clicked on something wrong, not quite sure. Unfortunately I can't recreate the Data Source without creating a new Entity and Data Model.I can delete the entry in the App.Config file and recreated it, however things aren't quite right.Is there a way that I can recreate my Data Source from the entry that is in my App.Config file...since that appears to have remained intact.BTW, I can go to my Data Model and successfully refresh from there, however my project isn't connecting to the database so I have quite a number of errors until I can get reconnected.
View 4 RepliesI have an Access database and I want to view on a datagridview specific rows. For that I used the following :
CasesBindingSource.Filter =
"OfferDate Between #1/1/1997# And #12/31/1997#"
Cases is the table, OfferDate a field of the table wich is DateTime type.
When I use Between operator I get the following error :The expression contains unsupported operator 'Between'.
In my program I got multiple spots where I open a Connection to an Oracle database, read some lines via a stored procedure which returns me a cursor, put them in an IDataReader, close the connection and go on.
Now everything works fine till the point of closing the connection. I've watched the connections opened to the database via TOAD for Oracle and I figured out, that the database seems to keep an connection opened after I said m_Connection.Close and m_Connection.Dispose.
I use Oracle.DataAccess and get an error after a short time, that there are to many connections. I debuged my session and made sure, that vb performs the close() command and it does it, but the database not.
I have some deprecated code in visual basic when connecting to an oracle database. I am using a OracleDataAdapter but it says that this has been deprecated. Does anyone know what the new supported code is to connect to a database?
View 2 RepliesWell for some reason when i try to add a reference so that the oracle database can connect to the VB.NET 2010 program.In other words it shouldn't highlight certain code as if the database is not connected.Here is a clear summery as best as i can say what the problem is.
1. Connection from Visual Studio 2010 to Oracle plus server
2. Adding References will not be allowed for some reason.
3. The code (See example below on what it might be) is still highlighted even when i added the references several times.
I'll show just a small snip of the code coz it's more or less the same on most of the forms if i want to either update, delete, add or amend to the database. I'll show a few screenshots so to be clearer.I've tried by even looking over the notes and followed step by step and nothing works.Since i am not registered in this module this time i can't seek help of the lecturer so don't bother telling me to go and ask my teacher I've pestered the supervisor that i'd have to present this project to and she hasn't replied to my email at all so i have no clue what else to do in the matter.
I am trying to use Bind Variables in my SQL statements which I pass to an Oracle database, but I get the Oracle error ORA-01008 Not all variables bound.[code]...
View 17 RepliesI'm making an app where people need to log in, these data are on a Oracle 10g XE DB, I know how to access the data, but I don't know how to validate is the query returns something or doesn't (to validate the username and password, of course). I'm using an ODBC with VB.net to connect the DB.
View 1 RepliesI am reading a csv file in to a datatable in vb.net and making a few checks and appending an extra column. I then want to perform a bulk insert using microsofts Oracle.DataAccess (no choice in this) to an Oracle database. what would be the best way to perform this as there is no bulkImport like in SQLserver.
View 2 Repliescan you tell me,how can i add a provider for oracle(Microsoft Provider oledb for oracle).Actually i had Microsoft ODBC for oracle but i want to add a provider above mention.
View 2 RepliesHow to fetch data from SAP r3 to Oracle with .net?
View 1 RepliesI have an Oracle database (external app) that contains a number of tables that I need to get data from, however I also have an SQL database that contains a number of tables that my app is using.
e.g. Oracle Table name PD_112
Structure:
ID DISP_ID1 52 83 5
e.g. SQL Table name DispTbl
[Code].....
I'm using crystal reports 9, visual studio 2008, and oracle 9i in this project I'm doing. My crystal reports pull data from an oracle database, and are displayed on a CrystalReportViewer on a windows form. How would I make this connection using vb.net code?[code]...
View 1 RepliesHow to access data from Ms-Acess and oracle?
View 4 RepliesI developed an application with old VB form and binding the data from Oracle database into VB form. Actually, I tried to bind the data more than 35000 records in to grid. But, it takes more than half an hour and also form was hanged and there is no output. Can you please let me know the solution to fix it and bind the data without any hang in my application. What are the steps to be followed to fix it?
View 1 RepliesIs there a way to transfer huge amount of data in a single shot from vb.net to Oracle database? I have a couple of thousands of records in my vb.net code which I want to update to Oracle database. What I do currently is, call a stored procedure in database once for each of those records. This would end up calling the stored proc couple of thousand times, which is highly inefficient.
View 2 RepliesI will try and explain my problem as simply as I can
I have an Oracle database (external app) that contains a number of tables that I need to get data from, however I also have an SQL database that contains a number of tables that my app is using.
e.g. Oracle Table name PD_112
Structure:
CODE:
What I want to do is get all the data from the Oracle table to display in a list control however I want the values in the DISP_ID column of the Oracle table to be change to the corrosponding DESC values from the DispTbl e.g. 5 from the Oracle table would display Piping instead of 5.
I know how to do this if both the tables where in one database system e.g. Oracle or SQL, however I am not sure the best why to do this when the tables are in 2 different data sources.
Below is the code for doing this in the same datasource:
Code:
I am using VB.Net 2005, just for info
I have an Oracle database (external app) that contains a number of tables that I need to get data from, however I also have an SQL database that contains a number of tables that my app is using.
e.g. Oracle Table name PD_112
Structure:
ID DISP_ID
1 5
2 8
3 5
[code]....
I have a table with a blob field that stores photos in jpg format. Is there any way to direct fill the Dataset with the OracleDataAdapter?
Like:My code in vb.net
Dim oAdp As OracleDataAdapter Dim v_oDs As DsSubRegistro <- My Dataset
oAdp = New OracleDataAdapter(myConnection.sqlCmd("SELECT * FROM ..."))
With oAdp.TableMappings.Add(Common.DbDataAdapter.DefaultSourceTableName, v_oDs.Foto.TableName).ColumnMappings
[Code]...
I need to code the following:
1.Connect to an Oracle database.
2.Execute a query.
3.Insert the query result into an Access database table.
how can i import a Excel sheet Data into my oracle10g Database using vb.net coading..
View 1 RepliesI have a VB.Net application that populates an Oracle 11g global temporary table. I can see data in the temporary table by loading it into a grid and everything looks correct.However, when I call an Oracle stored procedure from VB.Net that would manipulate the data in this temporary table, the stored procedure reports that my temporary table is empty.I understood that data in an Oracle global temporary table should be visible to all sessions.
View 1 RepliesI had a datagridview with databound. I want to write a coding is when user click at any cell of the datagridview, then it will get the whole data of the row and save it into oracle database.
View 7 RepliesChecking data for login form with oracle xe database
View 1 RepliesI am trying to export an excel file directory into an Oracle table as opposed to looping through the range and executing a lot of insert statements. I would think that there are better ways to accomplish this in .NET but I can't seem to find any other answer besides convert excel to csv & load it using Sql Loader or External Table. Does anyone know a cleaner & more efficient way that looping through the ranges creating & executing insert statements?
View 3 RepliesI have a table in Oracle that has a column with the Long data type. I create a simple recordset and bind it to a gridview.
Me.grdFollowup.DataSource = rsDataSet
Me.grdFollowup.DataBind()
All of the columns populate correctly except for the Long column. It returns a null for all rows. I have tested the SQL statement in Toad and it works perfectly. how to get an Oracle Long data type to populate in a gridview? This is driving me nuts
Firstly I've the data in csv(delimeted file) that file in exponential number and need to convert to integer( for example [3.9888e+003, 1.0093e+002] ..need to convert to 3989,1009). how to convert it in vb2008.
then send it to datagridview
I've the data in Datagridview (2 column - wavelength, absorbance) and i need to display in text box based on some reference. let say my first reference (soot it has wavelength value plus minus 2000 (range 1998 until 2002), 2nd ref NO2 plus minus 1630 (range 1628 until 1632) and others ref.
Firstly the system will find the specified wavelength in column1 (datagridview). if wavelength(column1) found in that range it will display the value in the textbox (column2- absorbance). then the information in the textbox, need to be save in oracle.
Why does the code below cause a memory leak when executed? The error only happens when I use Microsoft Visual Studio 2005 or 2008 in vb.net language. If I use C # is, there is no problem.
Dim strCon As String = "data source=SRV-10G;user id=Test;password=1234"
dim factory as DbProviderFactory = DbProviderFactories.GetFactory("Oracle.DataAccess.Client");
Dim conexao As IDbConnection = factory.CreateConnection
conexao.ConnectionString = strCon
[Code]....