Using the Connectivity Kit to Connect to Paradox Database

• Microsoft FoxPro for Windows, versions 2.5, 2.5a, 2.5b, 2.6
• Microsoft FoxPro Connectivity Kit, versions 2.5, 2.6

SUMMARY

This article describes how to use the FoxPro Connectivity Kit and ODBC to access data that resides in a Paradox database.

NOTE: Paradox is manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

MORE INFORMATION

This article assumes that you have the Paradox ODBC driver that is available as a part of the Microsoft ODBC Desktop Database Driver Kit (DDDK). This driver is also included with some Microsoft products, such as Microsoft Word for Windows and Microsoft Excel for Windows.

To connect to a Paradox data source, you must install the Paradox ODBC Driver and set up a Paradox data source through the ODBC Paradox Setup dialog box in the Windows Control Panel. Since this is a level 1 ODBC driver, the data source is a directory name or the current directory, as indicated in the Setup dialog box.

NOTE: The currently shipping Paradox ODBC driver supports only Paradox 4.0. The Paradox driver that ships with the ODBC 2.0 SDK provides an option in the Setup dialog box to specify Paradox 3.0 - 4.0 or Paradox 5.

The following is a code sample that "connects" to a Paradox data source:

   *-- Connect to a Paradox Data Source
   PRIVATE lcSource, lcUser, lcPwd, hDBHdle, lnDBRes

   *-- Init memvars
   STORE 0 TO hDBHdle, lnDBRes
   lcSource = "Paradox_sdk20"  && Paradox Data Source Name from ODBC Dialog
   lcUser = ""                 && Not needed for single tier drivers
   lcPwd = ""                  && Not needed for Paradox

   *-- Load Library if not already
   IF !"FPSQL" $ SET('library')
        SET LIBRARY TO FPSQL.FLL
   ENDIF
   WAIT WINDOW "Attempting connection ..." NOWAIT
   hDBHdle = dbConnect(lcSource, lcUser, lcPwd, "")
   IF hDBHdle > 0
      WAIT WINDOW ;
    "Connected to Paradox -  Handle:"+STR(hDBHdle,1,0) TIMEOUT 2
   ELSE
      WAIT WINDOW ;
    "Unable to connect to Paradox .."
   ENDIF

REFERENCES

Microsoft ODBC Desktop Database Driver Kit Paradox Driver online Help file