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SAS/ACCESS 9.2 for Relational Databases: Reference, Fourth Edition

SAS/ACCESS 9.2 for Relational Databases: Reference, Fourth Edition

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654 Introduction to <strong>SAS</strong>/<strong>ACCESS</strong> Interface to ODBC 4 Chapter 23Introduction to <strong>SAS</strong>/<strong>ACCESS</strong> Interface to ODBCOverviewThis section describes <strong>SAS</strong>/<strong>ACCESS</strong> Interface to ODBC. For a list of <strong>SAS</strong>/<strong>ACCESS</strong>features that are available in this interface, see “<strong>SAS</strong>/<strong>ACCESS</strong> Interface to ODBC:Supported Features” on page 81.ODBC ConceptsOpen database connectivity (ODBC) standards provide a common interface to avariety of data sources. The goal of ODBC is to enable access to data from anyapplication, regardless of which DBMS handles the data. ODBC accomplishes this byinserting a middle layer—consisting of an ODBC driver manager and an ODBCdriver—between an application and the target DBMS. The purpose of this layer is totranslate application data queries into commands that the DBMS understands.Specifically, ODBC standards define application programming interfaces (APIs) thatenable applications such as <strong>SAS</strong> software to access a database. For all of this to work,both the application and the DBMS must be ODBC-compliant, meaning the applicationmust be able to issue ODBC commands and the DBMS must be able to respond to these.Here are the basic components and features of ODBC.Three components provide ODBC functionality: the client interface, the ODBC drivermanager, and the ODBC driver <strong>for</strong> the data source with which you want to work, asshown below.Figure 23.1The ODBC Interface to <strong>SAS</strong>For PC and UNIX environments, <strong>SAS</strong> provides <strong>SAS</strong>/<strong>ACCESS</strong> Interface to ODBC asthe client interface. Consisting of the ODBC driver manager and the ODBC driver, theclient setup with which <strong>SAS</strong>/<strong>ACCESS</strong> Interface to ODBC works is quite differentbetween the two plat<strong>for</strong>ms.ODBC on a PC Plat<strong>for</strong>mOn the PC side, the Microsoft ODBC Data Source Administrator is the ODBC drivermanager. You can open the ODBC Data Source Administrator from the Windowscontrol panel. Working through a series of dialog boxes, you can create an ODBC data

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