Visual Studio Oracle Connection Error
Sign in MSDN subscriptions Get tools facebook twitter google+ Sign in Menu Developer Network Skip to content Technologies Cloud Mobile Web Business Data Gaming Downloads Visual Studio MSDN subscriptions SDKs Programs Public Class Form1 Dim conn As New OracleConnection Description of the illustration connect2.gif Save your changes. share|improve this answer answered Aug 23 '11 at 3:01 Wilma 212 add a comment| up vote 1 down vote You should do fine with the following link: ORA-12154: TNS:could not resolve Description of the illustration connect00.gif The Microsoft Visual Studio IDE environment appears. navigate here
Clearly, our application needs a better approach to handling errors. Install Oracle 11g Oracle Data Access Components (ODAC) with Oracle Developer Tools for Visual Studio version 126.96.36.199.2 or later from OTN Creating a Project in Visual Studio To create a new Dim conn As New OracleConnection(oradb) ' Visual Basic OracleConnection conn = new OracleConnection(oradb); // C# Notice that the connection string is associated with the connection object by being passed through the This allows the project to be easily published to a web server, ClickOnce, etc. http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/dotnet/GettingStartedNETVersion/GettingStartedNETVersion.htm
Oracle 11g Oracle Data Access Components (odac) With Oracle Developer Tools For Visual Studio
Is better to use a WiFi channel with high frequency? Autoplay When autoplay is enabled, a suggested video will automatically play next. You use this file to tell Oracle the order of protocols to use to resolve servers (e.g. It's free but you need to register, also free.
Add a textbox control and another label control to the form as shown below. If so, there is a known bug that is exposed with this scenario. How to properly localize numbers? Go Here Why can I use P = I²R but not P=V²/R when calculating energy lost in a circuit?
Provide a password of your choosing, and set the Account Status to “unlocked”. Connect To Oracle Database C# Visual Studio 2010 Mine looks as follows: SQLNET.AUTHENTICATION_SERVICES = (NTS) NAMES.DIRECTORY_PATH = (LDAP,TNSNAMES) NAMES.DEFAULT_DOMAIN =
C# Oracle Connection Example
How will offspring Pokemon inherit the Pokeball when breeding in Sun/Moon? https://blogs.msdn.microsoft.com/kaevans/2009/07/18/connecting-to-oracle-from-visual-studio/ Can an NPC healer be part of a party of PCs, and if so, how does that work? Oracle 11g Oracle Data Access Components (odac) With Oracle Developer Tools For Visual Studio Scroll down the list of Component Names and select Oracle.DataAccess. Connect To Oracle Database C# Visual Studio 2013 Drag the Button control to the Form1 canvas.
The first catch statement contains Case statements, which can be used to trap common database errors and display them in a user-friendly manner. check over here Loading... Click Quit. Do I have to connect using hostname? How To Connect Oracle 10g Database In Visual Studio 2010
Description of the illustration reference03.gif Adding Namespace Directives You can add Oracle namespace directives that allow you to indicate an assembly's namespaces within the module. Now you can run the form. . Attempting to close a closed database connection does not cause an error. http://ndsman.net/visual-studio/visual-studio-2010-oracle-connection-error.php What I can I do in this situation? –user965767 Sep 29 '11 at 23:14 1 Honestly I would remove both Oracle installations and reinstall clean.
Nonetheless, placing Dispose() in the Finally code block guarantees that the connection is closed. Connect To Oracle Database C# Visual Studio 2012 I've been using this code from the last 2 years. The Oracle Data Provider for .NET (ODP.NET) is Oracle's high performance ADO.NET 2.0 compliant data provider that exposes a complete set of Oracle specific features and tuning options including support for
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Oracle .NET 77,713 views 4:45 how to connect C# with Oracle database - Duration: 5:47. Description of the illustration connect04.gif Add the following statements to the list of declarations depending on the language you are using. Category People & Blogs License Standard YouTube License Show more Show less Loading... How To Connect Oracle Database In Asp Net Using C# There are typed accessors for returning .NET native data types and others for returning native Oracle data types, all of which are available in C#, Visual Basic, or any other .NET
The new listbox appears on the form. Reducing the entries in the TNSNAMES file resolved the issue. The following sections show how to use it. http://ndsman.net/visual-studio/visual-studio-oracle-tns-error.php Add the following code right after the conn.Open() statement: OracleParameter parm = new OracleParameter(); parm.OracleDbType = OracleDbType.Decimal; parm.Value = textBox1.Text; .
Double-click the Connect button on Form1 to open the code window to the connect_Click() method. What is your connect string? Description of the illustration build3.gif In the Form1 application, enter the User ID, Password, and Data Source. Select Build > Rebuild OraWinApp.
Oracle, Microsoft, and third-party vendors all offer .NET data providers optimized for an Oracle database. When ODP.NET and any required Oracle client connectivity software is installed, application development using Visual Studiocan begin. Set the text property of the Label2 control to “Enter department_id:” and make sure that the Text property of TextBox1 isn't set to anything. An expensive jump with GCC 5.4.0 Anxious about riding in traffic after 20 year absence from cycling How many dimensions does electricity have?
Why are terminal consoles still used? I am spoiled by how simple the free edition of SQL Server 2008, SQL 2008 Express, is to set up and connect to. A ListBox control is added to the form to display the results. The command object has methods for executing the command text, which will be seen in the next section.
Simpler projects often contain only one file. The Finally block frequently contains the Dispose method, which closes and disposes of the connection. i'm running win8.1 64bit and i use oracle 10g for VS2012 express edition or perhaps you had better oracle version for me to try 😀 2 years ago Reply YAMINA thank any tips? 7 years ago Reply Jennifer I had a few other obstacles to overcome, but despite that, your article saved me from a world of pain.
Close the Toolbox. Bind variables improve performance by preventing the database from having to reparse the SQL statement every time the text box value changes. Install Microsoft Visual Studio 2010 . From the Project types list, select Visual C#: Windows.