SNAPSHOT STANDBY DATABASE

SNAPSHOT STANDBY DATABASE 11g (Demonstration)

First Create Physical Standby then convert to snapshot database through SQL.

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Linux:
. oraenv
ps -eaf|grep mrp
==============

-----Primary

select * from abc;
create table abc as select * from scott.emp where deptno=20;

select * from abc;


-----standby 
select open_mode ,database_role,switchover_status from v$database;

recover managed standby database cancel;
exit

==============
Linux:
ps -eaf|grep mrp
==============

sqlplus sys@delhi as sysdba

alter database convert to snapshot standby;

select open_mode ,database_role,switchover_status from v$database;

select sequence#,applied from v$database order by 1;

alter database open;

select open_mode ,database_role,switchover_status from v$database;

select sequence#,applied from v$database order by 1;

update abc set sal=sal+10000;
commit;

alter system switch logfile;

select sequence#,applied from v$database order by 1;

==========================================
Note:
* see both location Archive log Primay & Standby
* archive properly shipped primary to standby but not apply
* Check Alert Log File
==========================================

-----Primary database
update abc set sal=sal-10000;
commit;

update abc set sal=sal+200;

commit;

alter system switch logfile;
alter system switch logfile;

select sequence#,applied from v$database order by 1;


-----Standby Database

select open_mode ,database_role,switchover_status from v$database;

alter database convert to physical standby;

shu immediate

startup mount

ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;

select sequence#,applied from v$database order by 1;

recover managed standby database cancel;

alter database open read only;

ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;

select sequence#,applied from v$database order by 1;

select * from abc;

.........?