SQL>CREATETABLEDEPT(idint);SQL>DROPTABLEDEPT;SQL>CREATETABLEDEPT(name varchar2(20));SQL>DROPTABLEDEPT;SQL>CREATETABLEDEPT(updatetimedate);SQL>DROPTABLEDEPT; 这样在回收站中将有三个DEPT表,它们被删除之前的名称在回收站中是相同的。如果通过下面的命令恢复表DEPT: SQL>FLASHBACKTABLEDEPTTOBEFOREDROP; ...
SQL>selectsalfromempwhereempno=7788; SAL---4000SQL>updateempsetsal=5000whereempno=7788;1row updated. SQL>commit;Commitcomplete. SQL>updateempsetsal=10000whereempno=7788;1row updated. SQL>commit;Commitcomplete. SQL>updateempsetsal=3000whereempno=7788;1row updated. SQL>commit;Commitcomplete. 执行...
SQL>selectdbms_flashback.get_system_change_numberfromdual; GET_SYSTEM_CHANGE_NUMBER---1138277SQL> create table changed_tables (table_name varchar2(256), xid raw(8), scn number); Table created. SQL> CREATE OR REPLACE PROCEDURE extract_txn_ids (lcrscn IN NUMBER, escninnumber) AS lname VAR...
if the flashback retention target is 1 week, then you must ensure that online and archived redo logs that contain all changes for the past week are accessible. In practice, redo logs are typically needed much longer than the flashback retention target to support...
SQL> alter system setDB_RECOVERY_FILE_DEST='' ; System altered. 对于Flash Recovery Area,Oracle是这样建议的,flashrecovery area设置的越大,flashback database的恢复能力就越强,因此建议flash recovery area能够放的下所有的数据文件,增量备份,以及所有尚未备份的归档文件,当然还有它自己产生的flashback logs。
SQL> delete from "BIN$jOLWvgYhgyXgQOYKHREVtA==$0";delete from "BIN$jOLWvgYhgyXgQOYKHREVtA==$0" *ERROR at line 1:ORA-38301: can not perform. DDL/DML over objects in Recycle Bin 2 Flashback Drop 操作flashback table t to before drop;如果在recyclebin中有同名的对象,如两个表T都被...
SQL> show pdbs; CON_ID CON_NAME OPEN MODE RESTRICTED --- --- --- --- 2 PDB$SEED READ ONLY NO 3 MPREPORT READ WRITE NO SQL> create restore point cbd_2229; [oracle@XAG191 ~]$ sql / as sysdba SQL> set sqlformat ansiconsole SQL> select name,restore_point_time,replicated from ...
Restore the entire database to a specific point-in-time, using Oracle-optimized flashback logs, rather than via backups and forward recovery. Flashback Table Easily recover tables to a specific point-in-time. The feature is extremely useful when a logical corruption is limited to one or a ...
Select xid,operation,commit_scn,undo_sql from flashback_transaction_query where xid in (Select versions_xid from flashback_test versions between scn minvalue and maxvalue); 5:Oracle Flashback Data Archive Oracle 11g推出一个新特性:Oracle Flashback Data Archive. ...
関連項目: DBMS_FLASHBACKの詳細は、次のマニュアルを参照してください。 『Oracle Databaseアドバンスト・アプリケーション開発者ガイド』 『Oracle Database SQL言語リファレンス』 この章では、次の項目について説明します。DBMS_FLASHBACKの使用方法 概要 セキュリティ・モデル タイ...