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 AX_RDDCount()
 Determine the number of RDDs linked into an application
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 Syntax

     AX_RDDCount() -> numeric

 Returns

     Returns a numeric value that represents the number of database drivers
     available to the CA-Clipper application.

 Description

     This function returns the number of database drivers (RDDs) that have
     been linked into the application.  The index and table drivers are
     counted separately.   For example, DBFNTX and DBF are both counted
     because they are each a separate driver.

 Example

     // Force Advantage NTX RDD to load
     USE test1 VIA "DBFNTXAX"

     // Force DBFNTX driver to load
     USE test2 VIA "DBFNTX" NEW

     // Get number of RDDs available
     ? AX_RDDCount()                     // Should display 4 for DBFNTX,
                                         // DBF, DBFNTXAX, and AXDBF RDDs