1980-01-10 /BB-4148D-BM/01/dbms-v5a/source/ddl20.rel 1980-01-10 /BB-4148D-BM_1980/01/dbms-v5a/source/ddl20.rel 1981-09-24 /BB-4148E-BM/01/sources/ddl20.rel 1981-09-24 /DBMS-20_V6.0_bin_9-25-81/01/sources/ddl20.rel 1981-09-24 /DBMS-20_V6_BIN_19811001/01/sources/ddl20.rel 1984-06-21 /BB-4148F-BM_1984/01/sources/ddl20.rel 1984-06-21 /CFS_TSU04_19910205_1of1/02/update/dbmall/ddl20.rel