dba_firstkey
Description
string dba_firstkey ( resource handle)dba_firstkey() returns the first key of the database specified by handle and resets the internal key pointer. This permits a linear search through the whole database.
Handle is a database handle returned by dba_open().
dba_firstkey() returns the key or FALSE depending on whether it succeeds or fails, respectively.
See also: dba_nextkey() and example 2 in the DBA examples