现象：After upgrading database to 19c where flashback is enabled and when a guaranteed restore ...
db_recovery_file_dest_size big integer 110G The window retention is 1 day => CONFIGURE RETENTION POLICY TO REDUNDANCY 1; We've found that there are 839 flashback logs: SQL> SELECT * FROM V$FLASH_RECOVERY_AREA_USAGE; FILE_TYPE PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES CO...
create table ncuser.tab (id number, name varchar2(32), cdate timestamp, constraint pk_tab primary key(id) using index tablespace nc_idx )tablespace nc_tab; --创建序列用于造数用 create sequence ncuser.tab_seq increment by 1 start with 1 nomaxvalue nocycle cache 1000; --造数SQL insert...
Oracle 19c: Automatic flashback in standby following primary database flashback When flashback or point-in-time recovery is performed on the primary database, a standby that is in mounted mode can automatically follow the same recovery procedure performed on the primary ...
Oracle Database - Enterprise Edition - Version 19.1 BETA and later: 19c (New Feature) : Auto Space Management for Flashback Logs in the Fast Recovery Area
Oracle Database19c Create a New Table In this section you create a new table. Invoke SQL*Plus and connect as the SYSTEM user. Alter session to pluggable database container orclpdb. # SQL>alter session set container=orclpdb;Session altered. ...
TABLE_NAME ||' DROP constraint '|| D.CONSTRAINT_NAME||';' FROM user_constraints d where d.CONSTRAINT_TYPE='R'; -s是静默,-create表示创建数据,-c是指定配置文件,就是oewizard.xml,-version指定swingbench版本,-cs表示数据库连接串,-dba表示连接到oracle数据库的用户,-dbap表示连接到oracle数据库的...
oracle 之flashback 深入研究。 今天是2013-08-24,开始进行oracle flashback 内部原理研究,记录一下笔记。 SQL> startup ORACLE instance started. Total System Global Area 405020672 bytes Fixed Size 2213816 bytes Variable Size 260048968 bytes Database Buffers 138412032 bytes ...
Oracle Database - Enterprise Edition - Version 19.3.0.0.0 and laterInformation in this document applies to any platform.SymptomsPost upgrade to 19.6 flashback queries see:The table <schemas>.<table> has had no DML performed on it since before the table was enabled for flashback archive.Getting...
在Oracle中,什么是闪回事务查询(Flashback Transaction Query)? ♣答案部分 闪回事务查询(Flashback Transaction Query)是查看某个事务或所有事务在过去一段时间对数据进行的修改。 闪回事务查询提供了一种查看事务级数据库变化的方法。它是SQL的扩展,能够看到事务带来的所有变化。此外,返回补充SQL语句,并用于撤消由事务...