Returns the first key in the database.
DBM Library (libdbm.a)
#include <dbm.h>
datum firstkey ()
The firstkey subroutine returns the first key in the database.
Returns a datum structure containing the first key value pair.
The dbm_firstkey subroutine.
List of NDBM and DBM Programming References and NDBM Overview in AIX 5L Version 5.2 Communications Programming Concepts.