基本存取方法 basic access method ; BAM

基本直接存取法 [计] basic direct access method ; bdam

基本分区存取法 basic partitioned access method ; bpam

基本顺序存取法 [计] basic sequential access method ; bsam ; basic consecutive access method

基本直接存取方法 basic direct access method

基本索引顺序存取法 [计] basic indexed sequential access method ; BISAM

基本通信存取法 basic communication access method

基本程序存取法 basic program access method ; BPAM BasicProgramAccessMethod

基本图形存取法 basic graphic access method