Drivers are libraries that implement the functions in the ODBC API. Each is specific to a particular DBMS. In most cases, drivers expose the capabilities of the underlying DBMSs; they are not required to implement capabilities not supported by the DBMS. Drivers perform specific tasks and can be classified into two categories: file-based and DBMS-based. For more information about drivers and driver architecture, see "Drivers" in Chapter 3, "ODBC Architecture" in the ODBC Programmer’s Reference.
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