--闪回查询已丢失的行，看是否有数据
SELECT * FROM MEM_PACKAGE AS OF TIMESTAMP TO_TIMESTAMP(‘2015-06-16 14:30:00‘, ‘YYYY-MM-DD HH24:MI:SS‘);
--使用闪回查询还原丢失的行
INSERT INTO MEM_PACKAGE (SELECT * FROM MEM_PACKAGE AS OF TIMESTAMP TO_TIMESTAMP(‘2015-06-16 14:30:00‘, ‘YYYY-MM-DD HH24:MI:SS‘));
