Oracle , Flashback Data Archive. :
Oracle Flashback Query , .
Flashback data archive provides the ability to track and save all transactional changes in the table during its existence. You no longer need to create this intelligence in your application. The Flashback data archive is useful for complying with milestone policies and audit reports.
CREATE TABLESPACE SPACE_FOR_ARCHIVE
datafile 'C:\ORACLE DB12\ARCH_SPACE.DBF'size 50G;
CREATE FLASHBACK ARCHIVE longterm
TABLESPACE space_for_archive
RETENTION 1 YEAR;
ALTER TABLE EMPLOYEES FLASHBACK ARCHIVE LONGTERM;
select EMPLOYEE_ID, FIRST_NAME, JOB_ID, VACATION_BALANCE,
VERSIONS_STARTTIME TS,
nvl(VERSIONS_OPERATION,'I') OP
from EMPLOYEES
versions between timestamp timestamp '2016-01-11 08:20:00' and systimestamp
where EMPLOYEE_ID = 100
order by EMPLOYEE_ID, ts;
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