Vba Oracle Connection String

I'm trying to connect to an Oracle Database from an Excel application and whithout a DNS. Posted by muhdsheeefpa (VB programmer) on Sep 25 at 10:03 AM Hi. If you have any compliments or complaints to MSDN Support, feel free to contact [email protected] Procedure. If you use a connection file to connect to a data source, Excel copies the connection information from the connection file into the Excel workbook. Print "Existing DSN is " & qry. How can I work it out if it involves VBA or simply just multiple queries would do? Thanks in advance. After much R&D also, I cannot find right solution. I'm trying to connect various VBA projects to an Oracle 10g back end using ADO (2. Public Function connectMysql(username As String, pass As String, serverIp As String, db As String, conn As ADODB. Sample Database Connection Strings These examples are for demonstration purposes only. If you were to write a piece of software that communicates with the database, you would use the Oracle Client to facilitate that communication. The FreeVBCode site provides free Visual Basic code, examples, snippets, and articles on a variety of other topics as well. > Hi Jim, A good way of creating and testing connection strings is to right-click on your desktop and choose New. 100 IP address by using Z username and Y password. The first one requires a DSN to be set up in ODBC Administrator. shName = range(“A1”). Net8 or SQL*Net is an Oracle proprietary standard connection protocol that only works with Oracle databases. A DSN-less connection allows a user to connect to a database without an ODBC DSN being created on the server, thereby granting greater flexibility. Feel free to ask questions on our Oracle forum. 13 via Smartview v 11 using Macro (VBA code). 3 Type Library references from Tools>References. Whichever is available for the connection, we can use them to connect to the Oracle. Then click on OK. Install the Oracle Client CD on your workstation. To create Query in Access VBA, you can directly write a SQL statement in Access VBA, and then create a Query using the SQL statement with CreateQueryDef Method. "To connect to Oracle DB or any database, Excel, Text or Flat files, refer to this link. NET Forums / Data Access / ADO. ora with a platforms hosts file. Oracle Database - Connect Descriptor (TNS Connect String) Oracle Database - Connect Identifier; Oracle Database - Connect String (Client Connection Initiation) Oracle Database - Oracle Connection Manager; Oracle Database - How to retrieve the connect descriptor parameters? (host, port, service name and SID) Oracle Database - Connection Pool. connection string connection strings ADO ADO. Using the Scroll Wheel in the VBA IDE. もう1つの方法として、connectおよびresource権限を持つデータベース・ユーザー・アカウントを使用して、Oracleデータベースへ接続する方法もあります。 ODP. Nonetheless, I came to a clients machine that had a bunch of different Oracle drivers installed. Subscribe to this blog. ORA & have and OBDC connection set up. Problem with ODBC connection in Excel VBA 64 bit. Connection String Parameters. > Hi Jim, A good way of creating and testing connection strings is to right-click on your desktop and choose New. I have created a local server and I am simply wishing to create a connection to this server, retrieve all the values out of one table and paste them onto one excel worksheet. NET, OLE DB. NET SQL database connection strings. maintains a web site containing sample ADO connection strings for ODBC DSN, ODBC DSN-Less, OLE DB Provider, and MS Remote. Connection Strings para diversos bancos de dados. In this Article, I will teach you, how you can do a connection with a Oracle Server. This chapter is the first in a series of five chapters, each of which describes how to create parts of a Java application that accesses Oracle Database 12 c Release 1 (12. Connection String Options in Direct Mode. If you want to use a connection string for connecting to a database, or if your application requires it, you must specify either a DSN (data source name), a File DSN, or a DSN-less connection in the string. Controls connection association with an enlisted System. After much R&D also, I cannot find right solution. To get the length of a string, use Len. To connect to the database, you must supply this information in the connection string. This article explains the steps including tnsnames. I've tried a variety of connection string types based on using ADO in other applications, but none seem to work. This is an old Microsoft Provider that ships with windows and makes use of the Oracle 7 & 8 client libraries. First you need configure tnsnames. Aşağıdaki Excel için Oracle Connection String leri Excel VBA ile Oracle bağlantısı yapmak istediğinizde string olarak tanımlayıp kullanabilirsiniz. I assume that if you can, there is the possibility of updating SQL from Excel through a simple connection. I have setup the connection in my workbook and my connection string looks as follows,. Author(s) Dev Ashish: Personally, I find the manual steps required to link to an ODBC table rather annoying. Turns out, he was using the adodc control and was setting the connection string at runtime, then referencing back to it ( Form2. Advertise. ADO Excel VBA - SQL Connecting to Database Example Macros helps to connect the different data sources from Excel VBA. sql connection using excel macros - welcome. This article explains the steps including tnsnames. Connection Dim rs As ADODB. This site was created as an online reference for various ADO and ADO. 100,1433;" where 1433 is the port to use (1433 is the default). Dim statement As String Dim conn As ADODB. ORA, SQLNET. The FreeVBCode site provides free Visual Basic code, examples, snippets, and articles on a variety of other topics as well. The following two points are very important when dealing with VBA string functions. NET connection strings for MySQL, ODBC, OLE DB, Oracle, and SQL Server. config Connection Pooling The Provider Keyword, ProgID, Versioning and COM CLSID Explained SQL Server Data Types Reference Network Protocol for SQL Server Connection All SQL Server SqlConnection. This section describes what you must do to connect an applet to a database. If you are connecting to a data source provider that supports Windows authentication, you should specify Trusted_Connection=yes or Integrated Security = SSPI instead of user ID and password information in the connection string. While Access has many great built-in features to allow this linking, sometimes you need to have a programmatic/dynamic way to accomplish this task through VBA. NET providers for databases. Sub RetrieveRecOracle() Dim wrk As Workspace Dim cnn As Connection Dim rst As Recordset Dim strConnect As String Dim strSql As String Dim VBA DAO to OracleRecordset Experts Exchange. Config file in ASP. Decr Pool Size. VBA / Excel / Access / Word; Data Type Functions; Data Type Functions /. Aşağıdaki Excel için Oracle Connection String leri Excel VBA ile Oracle bağlantısı yapmak istediğinizde string olarak tanımlayıp kullanabilirsiniz. How to Escape Quoted Strings for SQL Statement used in Database via Excel VBA SQL Server uses pairs of single quotes to identify the start and end of a string. A connection string contains several key-value pairs, separated by semicolons. Access, SQL, Oracle, Excel, Text, CSV, My SQL and lot more). Now create connection with Oracle using oledb. To explain how this works, basically I am using System. "To connect to Oracle DB or any database, Excel, Text or Flat files, refer to this link. A connection string is a string version of the initialization properties needed to connect to a data store and enables you to easily store connection information within your application or to pass it between applications. If you use a connection file to connect to a data source, Excel copies the connection information from the connection file into the Excel workbook. Letzteres wird dringend empfohlen, da vom MS-Treiber nicht der gesamte oracle-SQL Umfang abgedeckt wird. If that fails, I prompt the user, change the connection string to one that uses the userid/pwd and try again. You can also use these connection strings for files such as CSV and Excel spreadsheet files. You may have to hunt through the project file in the editor to find the macro you just recorded. In this Article you will learn, how you can do a connection with an Access Database. Thing is that I am able to make connection, but not able to autneticate after connecting to Appname and Dbname in that server. If you're going against a different DBMS, or want different options connecting to SQL Server, check out the various ODBC DSN-Less connection strings that Carl Prothman lists at Connection Strings, or check The Connection String Reference at ConnectionStrings. It is simply a connection that does not need TNS resolution. Using Excel Macros (VBA) you can connect to Databases like SQL, Oracle or Access DB. This is not the Oracle OLEDB Provider that comes from Oracle itself. I want to connect to remote SAP system using "SAP Router String" through JCo. NET Connection Strings Examples This page will help you to know main connection string parameters in our ADO. Microsoft ACE driver will allow you to query Office files (Including Access database AND Excel files). xls" as the data source and returns the connection string that represents that data source. This is the snippet ADO Connection, Command, Recordset, and Parameter Object Example on FreeVBCode. 13 via Smartview v 11 using Macro (VBA code). '--- It will be open till you close the connection End Sub Dim con As ADODB. Change the user name, password and service name to what you are using. org Forums there is Zero Tolerance to Spam. net we could use following connection string but i recently do practical on oracle wallet done successfully in SQL PLUS Tools but main question is i want to use this connection string (username and password and tnsping) using oracle wallet store in a server in vb. Hi All, In my application i want to connect oracle database to QTP. We use a VBA macro that dumps some custom properties into a MS Access database. The difference is whether you use the DSN=, FILEDSN=, or the DRIVER= keyword in the connection string, as described in the ODBC specification. Connection Set cnPubs = New ADODB. NET, Entity Framework, LINQ to SQL, NHibernate / how to connect with odbc connection in vb. Overview 'Initialize Variables Dim oConn As New ADODB. I connect to IBM i with this string -----. Select, Delete,Update Records set. A sid and a connect string bear little relationship to each other. To establish a connection, we need to understand the connection string. The Oracle / PLSQL INSTR function returns the location of a substring in a string. To get the length of a string, use Len. OzGrid Free Excel/VBA Help Forum. EZCONNECT is Oracle's easy connect naming method. Connect the Oracle Database Server. Connection Strings and Objects An Oracle connection string is inseparable from Oracle names resolution. Since we have Oracle available, I use the Oracle "branded" drivers with my code. Microsoft Access / VBA Forums on Bytes. connecting oracle 12c to excel 2013. It is a good idea to confirm client connectivity before starting development. Also included are ADO. Connection Set recset = New ADODB. This included fixing connection strings in VBA. Re: VBA/Excel 2007 and Oracle Connection String I realise of course there are a huge number of threads being posted and that everyone's busy, but I'm hoping someone can help me out with this. However, I am trying to also make macro add this new table to the data model for PowerPivot, but I am having trouble making the connection string work with an object name that is a string linked to a variable instead of a hard programmed table name. config Connection Pooling The Provider Keyword, ProgID, Versioning and COM CLSID Explained SQL Server Data Types Reference Network Protocol for SQL Server Connection All SQL Server SqlConnection. Connection timeout waits for the server to respond saying whether it will allow a connection or not. In Access, you may find the need to link to tables. 1;data source=orcl. How to Escape Quoted Strings for SQL Statement used in Database via Excel VBA SQL Server uses pairs of single quotes to identify the start and end of a string. My question is: Is there a way using VBA to take that query string, and remove all instances of the alias 'A' and just return the data columns 'B. VBA to connect to Oracle What is the syntax to connect to an Oracle DB?. refreshlink), then set it back to the string without the pw and username to secure it. but I was told by one of the DBAs here that with Oracle if I'm putting my username and pw in the connection string. Select the check box. The Original String is not Changed. Sample Database Connection Strings These examples are for demonstration purposes only. I have this parameters: - username - password - hostname - port - SID In VBScript, which is the connection string correct?. NET, Windows, and other applications. Oracle and VBA connection String. Thus the approach you use is not a TNS-less connection. I have created a DNS connection and have a connection string that passes the UID and PWD and this is being received okay. i m getting this msg. It seems you are looking for command object time out property. The ConnectionString property sets or returns the details used to create a connection to a data source. The ConnectionString can be set only when the connection is closed, and as soon as it is set it is passed, unchanged, to the Driver Manager and the underlying driver. Step 2 : Java Program to Connect to Oracle The following Java program uses Oracle JDBC driver to connect to a running Oracle database instance. How do I get a standard connection string to work using an ADODB. For ADO, use this code to change timeout value:. Connection Strings and Objects An Oracle connection string is inseparable from Oracle names resolution. Then we can set the database parameter in the vba code to get the different database. To create a connection we pass the connection string as a parameter in connection object. To create Query in Access VBA, you can directly write a SQL statement in Access VBA, and then create a Query using the SQL statement with CreateQueryDef Method. Hi Everybody I am trying to connect to an Oracle database using Excel VBA (using the ADO objects). Ich hab dann bei Kofler gelesen dass ich wenn ich den connection string erstelle nur die DNS angeben soll sofern eine ODBC-Datenquelle definiert wurde. My report needs to use a pass-through query, but I do NOT want an actual pass-through query sitting in the db since a saavy user could obtain the ODBC connection data that is stored. You may have to register before you can post: click the register link above to proceed. How can I work it out if it involves VBA or simply just multiple queries would do? Thanks in advance. Best VBA training in Chennai by Besant Technologies, OMR with certified experts. Below is the code I placed in the Load area of my main form. If you wish to install these two products, choose Oracle Instant Client in the tree view control. Search for jobs related to Word vba sql connection string or hire on the world's largest freelancing marketplace with 15m+ jobs. As you work with large scale SQL Server Integration Services ETL processes and sequences, you are bound to have to work with UTF-8 encoded text files. "To connect to Oracle DB or any database, Excel, Text or Flat files, refer to this link. 09/21/2018; 2 minutes to read +1; In this article. NET Connection Strings Examples This page will help you to know main connection string parameters in our ADO. Ich hab dann bei Kofler gelesen dass ich wenn ich den connection string erstelle nur die DNS angeben soll sofern eine ODBC-Datenquelle definiert wurde. Microsoft Office > Excel IT Pro Discussions. A list of ODBC DSN Connection Strings. We're on a corporate network thats running active directory and we'd like to test out some LDAP stuff (active directory membership provider, actually) and so far, none of us can figure out what our LDAP connection string is. Hi All, In my application i want to connect oracle database to QTP. Turns out, he was using the adodc control and was setting the connection string at runtime, then referencing back to it ( Form2. How To: Connect and run SQL queries to an Oracle database from Python Summary. A connect string might resolve to a longer connect string via your tnsnames. ora file, then check if it is successful. Dim cnPubs As ADODB. You can use only the Oracle JDBC Thin driver for an applet. Then we can set the database parameter in the vba code to get the different database. this is my code. doc), PDF File (. > <> > > The system generated macro connects to the Database just fine. I assume that if you can, there is the possibility of updating SQL from Excel through a simple connection. The connection string attribute that you have used for is a connection string and not command object. u can also use udl file to generate connection string for u. Various SQL database connection strings and database connection scrpting examples. OzGrid Free Excel/VBA Help Forum. Also you need a reference to ADO in your vb project. empty string. Does anyone know the connection string syntax to connect to Oracle database, preferably prompting the user to enter the user id and password. Connection Strings MS Access (ADODB & DAO Series-5) 4. 4\client_1\NETWORK\ADMIN as it often would be in the full Oracle client. The query has been validated in SQL Developer and works 100%. 0) defines the location (server name and port) and database (instance) for the connection. ODBC is an industry standard way to connect to SQL databases like Oracle, SQL Server and DB2. maintains a web site containing sample ADO connection strings for ODBC DSN, ODBC DSN-Less, OLE DB Provider, and MS Remote. Download Oracle 11g Release 2 Client ODBC Drivers Formating Rules for Connection Strings Connection Strings Explained Store Connection String in Web. The first thing is connection. Any help would be appreciated. refreshlink), then set it back to the string without the pw and username to secure it. Using Python to connect to Oracle DB, and extract results to CSV Posted on March 13, 2012 March 14, 2012 by Nick Singh I knew it would’nt take much code to do this, but there was still a little fiddling around and some odd errors along the way. Excel, Access, PowerPoint and Word Help > Forum > Help Section > Excel Help > How To Create Dynamic Oracle Query Using Excel VBA And Forms If this is your first visit, be sure to check out the FAQ by clicking the link above. Microsoft Access / VBA Forums on Bytes. EZCONNECT eliminates the need for service name lookups in tnsnames. Use VBA to automate Power Query in Excel 2016 Are you familiar with Power Query for Excel 2010 & 2013? In Excel 2016 you can now use Macro Recording and Object Model (VBA, PowerShell, C# etc. By using this site, oracle db with a permament connection string. I use this code to establish a connection to Oracle: Dim cn As ADODB. Sample Connection string to connect with Access DB –. The & operator can be used as a worksheet function (WS) and a VBA function (VBA) in Excel. Kısaca Excel VBA ile Oracle’a bağlantı yapmak istiyorsanız, tavsiye olarak yeni versiyon connectionstring’ini kullanabilirsiniz. Could I use. Any idea on the format of the connection string. 'declare the variable that will hold the connection string Dim ConnectionString 'define connection string, specify database driver and location of the database. If that fails, I prompt the user, change the connection string to one that uses the userid/pwd and try again. Use a connection string to verify all of the connection information and to edit specific connection information that you cannot change through the Connection Properties dialog box. There are four important parts in the VBA code above. The connection string you've added specifies a LocalDB database named Movie. maintains a web site containing sample ADO connection strings for ODBC DSN, ODBC DSN-Less, OLE DB Provider, and MS Remote. This is another type of Oracle connection string that doesn't rely on you to have a DSN for the connection. The ConnectionString can be set only when the connection is closed, and as soon as it is set it is passed, unchanged, to the Driver Manager and the underlying driver. Use VBA to automate Power Query in Excel 2016 Are you familiar with Power Query for Excel 2010 & 2013? In Excel 2016 you can now use Macro Recording and Object Model (VBA, PowerShell, C# etc. The other ways are given below: 1. Connection. refresh an external data connection in excel - excel. The string is a TNS connection string. If you can connect to Oracle using SQL*Plus on the same machine as Visual Studio, then you know that your Oracle client-side software is properly installed and configured. > <> > > The system generated macro connects to the Database just fine. The ODBC Oracle Driver Configuration window appears. I am sure this would work as I have created an SSIS package using this but the Developer I am supporting seems set on OLE DB. This site was created as an online reference for various ADO and ADO. I am currently using the. In computing, Microsoft's ActiveX Data Objects (ADO) comprises a set of Component Object Model (COM) objects for accessing data sources. By adding Persist Security Info=True to the original connection string, the connection string of the opened connection now has all the necessary information. Your application is is passing a connection string in an encoding that the Driver Manager cannot handle. Modules & VBA :: Remote Connection String? Aug 30, 2013. OraOLEDB offers provider-specific connection string attributes, which are set in the same way as the Provider and User ID are set. In VBA code, from Access, I want to open up a connection to an Oracle 10g database, select all the records from a specific table that meet certain criteria, and take those records and put them into a table in my database in Access. , 8i, 9i, 10g, 11g and 12g, 18c). Change the user name, password and service name to what you are using. A connection string consists of several keyword Other collaborations with Mike Gunderloy are "Automating Microsoft Access 2003 with VBA," "Upgrader's Guide to Microsoft Office System 2003. How the start with CONNECT BY clause in Oracle works This page explains the hierarchical query using the (start with) connect by clause in an Oracle SQL Query. The provider for the Microsoft OLE DB Provider for Oracle is not OleDb. Page Dim con As OleDbConnection Dim cmd As OleDbCommand Dim str AsString. See "URI filenames" for additional information. dotConnect for MySQL Connection String. After much R&D also, I cannot find right solution. Specifies the data source to which you want to connect. Using the Scroll Wheel in the VBA IDE. Omiting tnsnames. Now double click the "Create New Datasheet" button to activate its click event handler. I am looking for assistance in writing VBA code to create an DSN Less connection using either Oracle ODBC Driver or Microsoft ODBC Driver for Oracle connectors - the code will be on a server that will allow the apporpriate individuals to run and update the data in the Oracle Linked table to MS Access. Oracle and VBA connection String. This is a new link and instead of going to 150 user pc's and creating an ODBC connection manually, I would like to create the connection in the Main form of my Access Database. But, if the databases under comparison are connected in different servers or any repositories, we can use simple Excel VBA script where the connection strings need to have the details of …. Dear all: I want to use Excel link to Oracle Database to query data, and I don't want to install the Oracle Client and through ODBC. 09/21/2018; 2 minutes to read +1; In this article. This Oracle tutorial explains how to use the Oracle / PLSQL INSTR function with syntax and examples. The other ways are given below: 1. Web applications use connection strings to find out what database to interact with which credentials and other configuration. Private Sub OpenConnection2(pServer As String, pCatalog As String, pUser As String. Allows you to access databases through VBA and allows you to add a new database. vba to connect to oracle db. I am new in Oracle. So i have a gridview and a dropdown list, if i select a product from the dropdownlist the page postbacks and displays the selected product. The two functions return two ADO connection strings. These are a few ODBC connection string examples, but there are dozens more that correspond with different database engines. Transaction Binding. Hi Nothing wrong with your connection string structure, so I presume it must be the data source variable causing you problems (ie it isn't correct). You can do it in code editor by using either ADO or DAO Database object. Please help me where I am doing wrong. u can also use udl file to generate connection string for u. This site was created as an online reference for various ADO and ADO. Modify a connection string in a odbc connection using excel VBA I am trying to create a script that will change the user name and password in an existing ODBC connection string based on values collected from a user. I have the following connection string defined in the code. ora; Oracle Database - Naming method (naming resolution method) Oracle Database - Connect String (Client Connection Initiation) OBIEE 10G/11G - Oracle Call Interface (OCI. Does anyone know the connection string syntax to connect to Oracle database, preferably prompting the user to enter the user id and password. Die Datenbank ist einen Oracle 9 DB Wenn ich die Datenbank ueber Microsoft Query abrufe klappt alles einwandfrei, er fragt dann Service Name User Name und Password ab. empty string. [Solved] Problem connecting to Oracle Db via jdbc Normally the exact format of the connect string should be specified in the documentation that comes with the. 1 for my Global Database Name? I assume I connect as Sys or System and the password I created right after creating the database. That is what a TNS alias refers to in the client's tnsnames. (ODBC관리자에서 사용자 또는 시스템 데이터소스가 설정되어 있어야 한다. Yeni versiyon. The main advantage of this method, due to its small code footprint, is speed and flexibility in development plus low maintenance as compared to other approaches, especially SSIS in my opinion. This is another type of Oracle connection string that doesn't rely on you to have a DSN for the connection. Hi, i'm using SQL Developer for to connect to the database. Data Type Functions « VBA / Excel / Access / Word. Thus the approach you use is not a TNS-less connection. ;uid=sa;pwd=123;database=master" Dim con As New SqlConnection (str) The above string defines the connection string which is used to connect the database with the application. Connection String Options in Direct Mode. Hi I want macro to connect Oracle Database is this code is correct or not please tell me Sub GetData() Dim SQL_String As String Dim dbConnectStr As String Set con = New ADODB. Select, Delete,Update Records set. It seems that whenever I make a change to the connection string in the data source definition, the mere act of changing the string triggers a refresh from the data source. Für oracle DB's kannst du den Microsoft oracle-Treiber, oder aber den von oracle zur Verfügung gestellten Treiber brauchen. Oraclebut MSDAORA. I have tried Server and ConnectString but I still receive the pop-up for the service. This is a new link and instead of going to 150 user pc's and creating an ODBC connection manually, I would like to create the connection in the Main form of my Access Database. I have an ODBC connection setup and it works but when I try to connect through vba it will not connect. u can also use udl file to generate connection string for u. The user whose experience you cited did not. Number of connections that are closed when an excessive amount of established connections are unused. to reset the connection string for each linked table to one with the pw and username, refresh the link (tablefefs. Solidworks 2012 sp4 does not work with. Dear Friends, Using Excel Macros (VBA) you can connect to Databases like SQL, Oracle or Access DB. 4\client_1\NETWORK\ADMIN as it often would be in the full Oracle client. Execute Method. These components are supplied by Oracle Corporation and are part of Oracle version 7. If you're going against a different DBMS, or want different options connecting to SQL Server, check out the various ODBC DSN-Less connection strings that Carl Prothman lists at Connection Strings, or check The Connection String Reference at ConnectionStrings. Need to query oracle thin in excel vba macro. Note that you must change elements such as database name, server name, database location, Data Source Name (DSN), and so on. Thing is that I am able to make connection, but not able to autneticate after connecting to Appname and Dbname in that server. The ConnectionString can be set only when the connection is closed, and as soon as it is set it is passed, unchanged, to the Driver Manager and the underlying driver. After various attempts, we've decided that the simplest series of steps for a clean installation inc. I have set up an ODBC connection (in attachment) and it tests successfully. I can not connect to the server. Oracle database connection in vba; i am trying to connect oracle database but here i am facing issue to choose Driver(provider) which i have to use here. OTHER SOFTWARE APPLICATIONS. What needs to be installed in the client machine to get the connection?Thanks in advance. Any idea on the format of the connection string. This is the snippet Connect and Retrieve Data in Oracle With VB. What needs to be installed in the client machine to get the connection?Thanks in advance. Please help me where I am doing wrong. When you try to connect to the same Oracle database using the service name from TNSNames. Net and PowerShell (Version 3+). Setting up an Oracle ODBC Driver and Data Source requires more steps than the Microsoft SQL Server database setup. You need to use ADO to connect to Oracle and SQL Server. An Excel Worksheet and the Output of the RunSELECT Macro Let see how to run a simple SELECT SQL Query in Excel VBA on an example Excel Worksheet. The string is a TNS connection string. Here is my connection string vba. Text File and CSV File Connection Strings Text and CSV file Connection Strings including ODBC and OLE DB Connection Strings. If you have any compliments or complaints to MSDN Support, feel free to contact [email protected] OraOLEDB-Specific Connection String Attributes. Omiting tnsnames. udl, file type All files, click save now run filename. These are a few ODBC connection string examples, but there are dozens more that correspond with different database engines. An Oracle Service Name (known as an Alias in versions prior to Oracle 8. This MSAccess tutorial explains how to connect to Oracle using VBA code in Access 2003 (with screenshots and step-by-step instructions).