幾個有用的做DG的SQL命令

幾個有用的做DG的SQL命令


1.startup nomount;


2.alter database mount standby database;


3.select name, database_role from v$database;


4.alter database recover managed standby database disconnect from session;


5.alter system archive log current;


6.alter database recover managed standby database cancel;


7.alter database open read only;


8.select sequence#,first_time, next_time from v$archived_log order by sequence#;

9.select sequence#, applied from v$archived_log order by sequence#;

其中 4和6可以切換做查詢等操作