1977-02-02 /BB-4148D-BM/01/dbms-v5a/source/schem2.cmd 1977-02-02 /BB-4148D-BM_1980/01/dbms-v5a/source/schem2.cmd 1980-09-10 /BB-4148E-BM/01/sources/schem2.cmd 1980-09-10 /DBMS-20_V6.0_bin_9-25-81/01/sources/schem2.cmd 1980-09-10 /DBMS-20_V6_BIN_19811001/01/sources/schem2.cmd