dbmfirstkey Retrieves the first key from a DBM database &reftitle.description; stringdbmfirstkey resourcedbm_identifier Returns the first key in the database. Note that no particular order is guaranteed since the database may be built using a hash-table, which doesn't guarantee any ordering. &reftitle.parameters; &dbm.dbm-identifier.description; &reftitle.returnvalues; &return.success; &reftitle.seealso; dbmnextkey