data guard - Check redo transport lag and apply lag in standby database

-- Check redo transport lag and apply lag in standby database

# standby

  

  archive log list

  

  col name for a13

  col value for a20

  col unit for a30

  set lines 122

  select name, value, unit, time_computed from v$dataguard_stats where name in ('transport lag','apply lag');

1-2-3 PSU

Shutdown all the database instances in the 11.2.0.4.0 home
as oracle
srvctl stop home -o /ora01/oracle/product/11.2.0.4/db -s dbstatefile

Rollback patch 18769590
as oracle
$ORACLE_HOME/OPatch/opatch rollback -id 18769590

Rollback the psu
as root
opatch auto -rollback -ocmrf ocm.rsp

Rollback just the db Home
as root
opatch auto -oh /ora01/oracle/product/11.2.0.4/db -rollback -ocmrf ocm.rsp

Apply the PSU with the -norestart option
as root
opatch auto -ocmrf ocm.rsp -norestart

Start all the databasesas oracle
as root
crsctl start resource -w "TYPE = ora.database.type"

Start has and ASM
as root
crsctl start has

Check for ORACLE Patches applied

as grid and 11g:

$ORACLE_HOME/OPatch/opatch lsinventory -bugs_fixed  | grep -i 'PSU'

 

for database:

$ORACLE_HOME/OPatch/opatch lsinventory -bugs_fixed | egrep 'PSU|PATCH SET UPDATE'

$ORACLE_HOME/OPatch/opatch lsinventory -bugs_fixed | grep -i 'DATABASE PSU'

 

for CRS:

$ORACLE_HOME/OPatch/opatch lsinventory -bugs_fixed | grep -i 'TRACKING BUG' | grep -i 'PSU'

 

For GI:

$ORACLE_HOME/OPatch/opatch lsinventory -bugs_fixed | grep -i 'GI PSU'

 

query the registry$history database object

select substr(action_time,1,30) action_time,

substr(id,1,10) id,

substr(action,1,10) action,

substr(version,1,8) version,

substr(BUNDLE_SERIES,1,6) bundle,

substr(comments,1,20) comments

from registry$history;

How to login to user when you don't know the password in Oracle

   steps :-

1.    select dbms_metadata.get_ddl('USER','SCOTT') from dual;
2.    change password
3.    connect 
4.    do the work
5.    change it back
6.    revert back to original password from step 1

How to reset password in Oracle after the current password has expired

declare
 cursor pass is 
SELECT    
     'ALTER '||
     SUBSTR(DBMS_LOB.SUBSTR(DBMS_METADATA.GET_DDL('USER',USERNAME),
     INSTR(DBMS_LOB.SUBSTR(DBMS_METADATA.GET_DDL('USER',USERNAME),200),'DEFAULT')-1) ,
     INSTR(DBMS_LOB.SUBSTR(DBMS_METADATA.GET_DDL('USER',USERNAME),200),'USER')) USER_PASS 
FROM  DBA_USERS 
WHERE USERNAME IN 
     (SELECT USERNAME  
      FROM DBA_USERS 
      WHERE (USERNAME  in
            (select username  from dba_users where account_status like '%EXPIRED%' and
              (
               username like 'SYSTEM' or 
               username like 'TEST%' ))));

BEGIN
  for rec in pass loop
   begin
    execute immediate rec.USER_PASS;
    exception when others then DBMS_OUTPUT.PUT_LINE(SQLERRM);
   end;
  end loop;
END;
/