监视DG状态 物理备库(Physical Standby) 检查进程状态 SELECT CLIENT_PROCESS, PROCESS, THREAD#, SEQUENCE#, STATUS FROM V$MANAGED_STANDBY WHERE CLIENT_PROCESS='LGWR' OR PROCESS='MRP0'; -- oracle 12.2+ select name,pid,role,action,group#,thread#,sequenc
模拟同步失败 备库创建唯一性索引SQL> create unique index idx_scott_t_1 on scott.t(user_id); Index created. 主库插入重复数据 SQL> insert into scott.t select * from scott.t; 36 rows created. SQL> commit; Commit complete. 备库
♣题目部分在Oracle中，逻辑DG维护中常用到的SQL语句有哪些？ ♣答案部分1.日志应用的启动和关闭1ALTER DATABASE STOP LOGICAL STANDBY APPLY; ---停止应用，等待事务完成 2ALTER DATABASE ABORT LOGICAL STANDBY APPLY;--不等待事务完成就停止 3ALTER DATABASE STA
模拟同步失败 备库创建唯一性索引SQL> create unique index idx_scott_t_1 on scott.t(user_id); Index created. 主库插入重复数据 SQL> insert into scott.t select * from scott.t; 36 rows created. SQL> commit; Commit complete. 备库自动停止同
