SELECT obj# FROM obj$ AS OF TIMESTAMP TO_TIMESTAMP('2016-06-30', 'YYYY-MM-DD') WHERE NAME = 'PFWZ_APPLICATION_OPERATION'; 87842 87852 SELECT source FROM source$ AS OF TIMESTAMP TO_TIMESTAMP('2016-06-30', 'YYYY-MM-DD') where obj# = 87842; SELECT source FROM source$ AS OF TIMESTAMP TO_TIMESTAMP('2016-06-30', 'YYYY-MM-DD') where obj# = 87852; 一个包头 一个包体