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 DBCLEARFILTER()
 Clear a filter condition
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 Syntax

     DBCLEARFILTER() --> NIL

 Returns

     DBCLEARFILTER() always returns NIL.

 Description

     DBCLEARFILTER() clears the logical filter condition, if any, for the
     current work area.

     DBCLEARFILTER() performs the same function as the standard SET FILTER
     command with no expression specified.  For more information, refer to
     the SET FILTER command.

 Notes

     .  Logical records: DBCLEARFILTER() affects the logical
        visibility of records in the current work area.  For more
        information, refer to DBSETFILTER() and the SET FILTER command.

 Examples

     .  The following example sets a filter, LISTs data as filtered
        and then clears the filter:

        USE Employee NEW
        DBSETFILTER( {|| Age < 40}, "Age < 40" )
        LIST Employee->Name
        DBCLEARFILTER()
        DBCLEARFILTER()

 Files:  Library is CLIPPER.LIB.