Dynamics Previous Versions Dynamics Previous Versions.Implementing Dynamics 365 Implementing Dynamics 365.Artificial Intelligence Artificial Intelligence.Dynamics 365 Products Dynamics 365 Products.A connect string passes the connection information directly to the ODBC Driver Manager, and it helps simplify your application by removing the requirement that a system administrator or user first create a DSN before you use the database.įor more information about the ODBC interface, see the ODBC Programmer's Reference section of MSDN.īefore proceeding, obtain and install the appropriate ODBC driver for the data source to which you want to connect. In a module, you can define a formatted connect string that specifies connection information. You can use unshareable file data sources to access existing machine data sources from file data sources. An unshareable file data source is contained on a single computer and points to a machine data source. Or you can place the file data source on a single server, share it between many computers on the network, and easily maintain the connection information in one location.Ī file data source can also be unshareable. For example you can copy a file data source to any computer that has the correct ODBC driver so that your application can rely on consistent and accurate connection information to all the computers it uses. File data sourcesįile data sources (also called DSN files) store connection information in a text file, not the Windows registry, and are generally more flexible to use than machine data sources. A machine data source is especially useful when you want to provide added security, because only users who are logged on can view a machine data source and it cannot be copied by a remote user to another computer. System data sources can be used by all users on a computer and are visible to all users on the computer and system-wide services. User data sources can be used only by the current user and are visible only to that user. There are two types of machine data sources - user and system. You can use machine data sources only on the computer they are defined on. Machine data sources store connection information in the Windows Registry on a specific computer. Install the appropriate ODBC driver on the computer that contains the data source.ĭefine a data source name (DSN) by using either the ODBC Data Source Administrator to store the connection information in the Microsoft Windows registry or a DSN file, or a connect string in Visual Basic code to pass the connection information directly to the ODBC Driver Manager. To connect to these data sources, you must do the following: In Access, you use ODBC data sources to connect to data sources external to Access that do not have built-in drivers. In the ODBC architecture, an application such as Access connects to the ODBC Driver Manager, which in turn uses a specific ODBC driver (for example, Microsoft SQL ODBC driver) to connect to a data source. This information can be obtained from the administrator of the database to which you want to connect. Examples of connection information include server location, database name, logon ID, password, and various ODBC driver options that describe how to connect to the data source. Examples of data sources are SQL Server, Oracle RDBMS, a spreadsheet, and a text file. In this articleĪ data source is a source of data combined with the connection information that is required to access that data. The procedure steps might vary depending on the specific database products and ODBC drivers used. This article contains general information about ODBC data sources, how to create them, and how to connect to them by using Microsoft Access. Open Database Connectivity (ODBC) is a protocol that you can use to connect a Microsoft Access database to an external data source such as Microsoft SQL Server. Access for Microsoft 365 Access 2021 Access 2019 Access 2016 Access 2013 Access 2010 Access 2007 More.
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