Steps to quickly rebuild of existing standby database

 

Steps to quickly rebuild of existing standby database:

There are situations where you will have to rebuild your existing standby database as a result of  various situations like primary db was restored from backup with open reset logs.

1. Disable log shipping to standby database (that you want to rebuild "alter system set log_archive_dest_state_2=defer").

2. Take full bakup from PRIMARY DB.

3. Take standby controlfile backup.

4. Copy backup and standby control file to standby server.

5. Drop datalafiles and controlfiles on standby Database.

6. Copy new standby control files to all controlfile locations.

7. Mount standby Database

8. Restore standby database.

8.  Enable log shipping to standby database(alter system set log_archive_dest_state_2=enable).

9. Recover managed standby database (on standby).

Restore database schema from full expdp backup

Import schema from full db expdp backup:

In some situations you might want to restore a single schema from entire EXPDP backup. In this example I want to explain how to import a single schema from full DB expdp backup.





Lets backup the full database using the EXPDP:

F:\>expdp atoorpu directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb.log full=y compression=all parallel=8

Export: Release 11.2.0.4.0 - Production on Tue May 17 14:55:21 2016

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
Password:

UDI-28002: operation generated ORACLE error 28002
ORA-28002: the password will expire within 7 days

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Master table "ATOORPU"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded
Starting "ATOORPU"."SYS_EXPORT_SCHEMA_01":  atoorpu/******** directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb.log full=y compression=all parallel=8

.
.
.
.
.
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/INDEX/INDEX
. . exported "SCOTT"."DEPT"                             4.976 KB       4 rows
. . exported "SCOTT"."EMP"                              5.625 KB      14 rows
. . exported "SCOTT"."SALGRADE"                         4.890 KB       5 rows
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/INDEX/FUNCTIONAL_INDEX/INDEX
.
.
.
.
.
Master table "ATOORPU"."SYS_EXPORT_FULL_01" successfully loaded/unloaded
******************************************************************************
Dump file set for ATOORPU.SYS_EXPORT_FULL_01 is:
  C:\DPUMP\FULLDB_01.DMP
  C:\DPUMP\FULLDB_02.DMP
  C:\DPUMP\FULLDB_03.DMP
  C:\DPUMP\FULLDB_04.DMP
  C:\DPUMP\FULLDB_05.DMP
  C:\DPUMP\FULLDB_06.DMP
  C:\DPUMP\FULLDB_07.DMP
  C:\DPUMP\FULLDB_08.DMP
Job "ATOORPU"."SYS_EXPORT_FULL_01" successfully completed at Tue May 17 14:27:13 2016 elapsed 0 00:05:36

Restore schema into a temp SCOTT1 schema:


Now that I have completed my full DB backup. I want to restore just SCOTT schema from full backup into a temp schema called SCOTT1. For this I will need to pass two parameters
1. schemas = Schema name you want to import
2. remap_schema= This is to remap that schema to a temp SOCTT1 schema


F:\>impdp atoorpu directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb_imp.log schemas=SCOTT remap_schema=SCOTT:SCOTT1

Import: Release 11.2.0.4.0 - Production on Tue May 17 14:57:21 2016

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
Password:

UDI-28002: operation generated ORACLE error 28002
ORA-28002: the password will expire within 7 days

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Master table "ATOORPU"."SYS_IMPORT_SCHEMA_01" successfully loaded/unloaded
Starting "ATOORPU"."SYS_IMPORT_SCHEMA_01":  atoorpu/******** directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb_imp.log schemas=SCOTT remap_schema=SCOTT:SCOTT1
Processing object type DATABASE_EXPORT/SCHEMA/USER
Processing object type DATABASE_EXPORT/SCHEMA/GRANT/SYSTEM_GRANT
Processing object type DATABASE_EXPORT/SCHEMA/ROLE_GRANT
Processing object type DATABASE_EXPORT/SCHEMA/DEFAULT_ROLE
Processing object type DATABASE_EXPORT/SCHEMA/PROCACT_SCHEMA
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/TABLE
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/TABLE_DATA
. . imported "SCOTT1"."DEPT"                             4.976 KB       4 rows
. . imported "SCOTT1"."EMP"                              5.625 KB      14 rows
. . imported "SCOTT1"."SALGRADE"                         4.890 KB       5 rows
. . imported "SCOTT1"."BONUS"                                0 KB       0 rows
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/INDEX/INDEX
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/CONSTRAINT/CONSTRAINT
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/CONSTRAINT/REF_CONSTRAINT
Processing object type DATABASE_EXPORT/SCHEMA/TABLE/STATISTICS/TABLE_STATISTICS
Job "ATOORPU"."SYS_IMPORT_SCHEMA_01" successfully completed at Tue May 17 14:57:34 2016 elapsed 0 00:00:08


Restore SCOTT into SCOTT schema and replace exiting tables :

If you want to restore it with same schema SCOTT and replace existing tables use this


impdp atoorpu directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb_imp.log schemas=SCOTT ABLE_EXISTS_ACTION=REPLACE


If you want to restore it with same schema SCOTT but append (add) rows to existing tables use this
impdp atoorpu directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb_imp.log schemas=SCOTT ABLE_EXISTS_ACTION=APPPEND

restore single table from expdp full backup

Lets take a full Backup:


F:\>expdp atoorpu directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb.log full=y compression=all parallel=8


Export: Release 11.2.0.4.0 - Production on Tue May 17 14:55:21 2016

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

Password:

UDI-28002: operation generated ORACLE error 28002

ORA-28002: the password will expire within 7 days

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

Master table "ATOORPU"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded

Starting "ATOORPU"."SYS_EXPORT_SCHEMA_01":  atoorpu/******** directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb.log full=y compression=all parallel=8


.

.

.

.

.

Processing object type DATABASE_EXPORT/SCHEMA/TABLE/INDEX/INDEX

. . exported "SCOTT1"."DEPT"                             4.976 KB       4 rows

. . exported "SCOTT1"."EMP"                              5.625 KB      14 rows

. . exported "SCOTT1"."SALGRADE"                         4.890 KB       5 rows

Processing object type DATABASE_EXPORT/SCHEMA/TABLE/INDEX/FUNCTIONAL_INDEX/INDEX

.

.

.

.

.

Master table "ATOORPU"."SYS_EXPORT_FULL_01" successfully loaded/unloaded

******************************************************************************

Dump file set for ATOORPU.SYS_EXPORT_FULL_01 is:

  C:\DPUMP\FULLDB_01.DMP

  C:\DPUMP\FULLDB_02.DMP

  C:\DPUMP\FULLDB_03.DMP

  C:\DPUMP\FULLDB_04.DMP

  C:\DPUMP\FULLDB_05.DMP

  C:\DPUMP\FULLDB_06.DMP

  C:\DPUMP\FULLDB_07.DMP

  C:\DPUMP\FULLDB_08.DMP

Job "ATOORPU"."SYS_EXPORT_FULL_01" successfully completed at Tue May 17 14:27:13 2016 elapsed 0 00:05:36


****************************************************************************************************************

FROM THIS FULL BACKUP I WOULD LIKE TO RESTORE A TABLE FROM SCHEMA: SCOTT & TABLE: BONUS FULL BACKUP INTO SCHEMA.

****************************************************************************************************************

F:\>impdp atoorpu directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb_imp.log tables=SCOTT.BONUS


Import: Release 11.2.0.4.0 - Production on Tue May 17 16:04:51 2016


Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

Password:


UDI-28002: operation generated ORACLE error 28002

ORA-28002: the password will expire within 7 days


Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

Master table "ATOORPU"."SYS_IMPORT_TABLE_01" successfully loaded/unloaded

Starting "ATOORPU"."SYS_IMPORT_TABLE_01":  atoorpu/******** directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb_imp.log tables=SCOTT.BONUS

Processing object type DATABASE_EXPORT/SCHEMA/TABLE/TABLE

Processing object type DATABASE_EXPORT/SCHEMA/TABLE/TABLE_DATA

. . imported "SCOTT"."BONUS"                                 0 KB       0 rows

Processing object type DATABASE_EXPORT/SCHEMA/TABLE/STATISTICS/TABLE_STATISTICS

Job "ATOORPU"."SYS_IMPORT_TABLE_01" successfully completed at Tue May 17 16:05:05 2016 elapsed 0 00:00:08


****************************************************************************************************************

FROM THIS FULL BACKUP I WOULD LIKE TO RESTORE A TABLE FROM FULL BACKUP AND RESTORE IT FROM SCHEMA : SCOTT INTO ANOTHER SCHEMA : SCOTT1.

****************************************************************************************************************

F:\>impdp atoorpu directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb_imp.log tables=SCOTT.BONUS REMAP_SCHEMA=scott:scott1


Import: Release 11.2.0.4.0 - Production on Tue May 17 16:20:31 2016


Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

Password:


UDI-28002: operation generated ORACLE error 28002

ORA-28002: the password will expire within 7 days


Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

Master table "ATOORPU"."SYS_IMPORT_TABLE_01" successfully loaded/unloaded

Starting "ATOORPU"."SYS_IMPORT_TABLE_01":  atoorpu/******** directory=dpump dumpfile=fulldb_%U.dmp logfile=fulldb_imp.log tables=SCOTT.BONUS REMAP_SCHEMA=scott:scot

1

Processing object type DATABASE_EXPORT/SCHEMA/TABLE/TABLE

Processing object type DATABASE_EXPORT/SCHEMA/TABLE/TABLE_DATA

. . imported "SCOTT1"."BONUS"                                0 KB       0 rows

Processing object type DATABASE_EXPORT/SCHEMA/TABLE/STATISTICS/TABLE_STATISTICS

Job "ATOORPU"."SYS_IMPORT_TABLE_01" successfully completed at Tue May 17 16:20:45 2016 elapsed 0 00:00:08

select from table with no direct relation or foriegn keys

SELECT
  E.EMPNO,
  E.ENAME,
  E.JOB,
  D.DEPTNO,
  D.LOC,
  E.SAL
FROM
  scott.emp E
LEFT JOIN SCOTT.DEPT D
ON
  E.DEPTNO=D.DEPTNO;

SELECT
  E.EMPNO,
  E.ENAME,
  E.JOB,
  D.DEPTNO,
  D.LOC,
  E.SAL,
  (
    SELECT      grade
    FROM
      SCOTT.SALGRADE S
    WHERE
      E.SAL BETWEEN S.LOSAL AND S.HISAL
  ) AS SALGRADE
FROM
  scott.emp E
LEFT JOIN SCOTT.DEPT D
ON
  E.DEPTNO=D.DEPTNO;

run sql from windows cmd prompt CLI

Method 1:

set ORACLE_HOME=D:\app\oracle\product\11.2.0\db_1
set ORACLE_SID=ORCL

sqlplus -s "USERNAME/PASSWORD" @C:\Shell\Drop_objs.sql

sqlplus -s "USERNAME/PASSWORD" @C:\Shell\Change_pass.sql



Method 2:

set ORACLE_HOME=D:\app\oracle\product\11.2.0\db_1
set ORACLE_SID=ORCL
(ECHO select username from dba_users where username in ('SCOTT');
ECHO exit;) | sqlplus -s "USER/PASS" > C:\Shell\test_out.txt