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Redo Logs in an Oracle Database - DBArch Video 11
 
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This video explains the concepts of Redo Log Groups and Files in an Oracle Database. You will understand how Oracle Instance uses Redo Buffers and Logwriter to keep the redo in Redo Logs. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 13305 Ramkumar Swaminathan
Oracle DBA, Redo logs 1e1
 
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Views: 3812 hammadshams
Oracle DB - Multiplexing Redo Log Files
 
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Oracle DB - Multiplexing Redo Log Files Watch More Videos at: https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjabi, Tutorials Point India Private Limited
SCPT 13: Oracle Redo Buffer Cache
 
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In this video we will learn about Redo Buffer Cache in Oracle RDBMS. For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 26799 Oresoft LWC
Oracle 11g Multiplexing Your Online Redo Log Files
 
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In this tutorial i'm going to show you how to do Multiplexing Your Online Redo Log Files in Oracle 11g using command mode.
Views: 1436 OCP Technology
Oracle Database Files -  DBArch Video 5
 
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In this video you learn about the storage components in an Oracle Database. You learn about the different files , Data files, Control Files and Redo log files and their purpose in an Oracle Database Architecture. learn Oracle, learn Oracle database. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 12934 Ramkumar Swaminathan
Oracle Database In RedoLog Buffer
 
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Every time user performs a DML, DDL or DCL operation, so its redo entries are also created. These redo entries contain commands to rebuild or redo the changes. These entries are stored in Redo Log buffer. Log writer process (LGWR) writes these redo entries to redo log files
Views: 74 Koenig Solutions
Understanding Oracle Database Undo and Redo (1 of 2)
 
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Oracle's Undo and Redo architecture supports crash recovery and the database "ACID" test, i.e. transaction atomicity, consistency, isolation and durability. Understanding this architecture and how it works is essential knowledge for all DBA's. This tutorial requires a background in Oracle SQL and helpful is an understanding of Oracle system and dynamic views, e.g. v$bh. Presented by SkillBuilders' Oracle Certified Master DBA John Watson.
Views: 787 SkillBuilders
WHAT IS AN UNDO TABLESPACE - Oracle database Administration
 
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Learn how easy it is to make $100k and above by becoming an Oracle Database Administrator. Website: https://newayitsolutions.com Subscribe: https://newayitsolutions.com/page Enroll: https://newayitsolutions.com/enroll Youtube: newayitsolutions ------------------------------------------------------------------------------------------------------------------------------------------------------------- Follow on Facebook: https://www.facebook.com/newayitsolutions/ Follow on Twitter: https://twitter.com/Theoracledbaguy Follow on Instagram: https://www.instagram.com/oracledbatrainer/ Financing Available: https://newayitsolutions.com/loan-application School Locations: Atlanta, Maryland, Virginia ------------------------------------------------------------------------------------------------------------------------------------------------------------- Office Contact: 1-866-569-0205 Mobile Contact: 240-244-9935
Views: 3327 NewayITSolutions LLC
ORACLE DML ERROR LOGS/ DBMS_ERRLOG / شرح عربي
 
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ORACLE DML ERROR LOGS/ DBMS_ERRLOG / شرح عربي ------- select employee_id , first_name||' '||last_name name from employees create table emp_c ( employee_id number, ename varchar2(15) ); insert into emp_c select employee_id , first_name||' '||last_name name from employees ---the solution exec dbms_errlog.create_error_log('emp_c'); desc err$_emp_c insert into emp_c select employee_id , first_name||' '||last_name name from hr.employees log errors reject limit unlimited; select * from err$_emp_c
Views: 586 khaled alkhudari
Oracle DBA, controlfiles, datafiles, online redolog files 1e6
 
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Three very important files in oracle database
Views: 3220 hammadshams
Relationships of Physical and Logical Storage structures in an Oracle Database - DBArch Video 22
 
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In this video you will understand the Relationships between the Physical files and Logical Components - Tablespace, Segments, Extents and Oracle Blocks in an Oracle Database . Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 10547 Ramkumar Swaminathan
SCPT 21: Oracle Back Ground Processes ( CKPT, DBWR, LGWR, ARCH)
 
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Oracle DBA Tutorials For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 58479 Oresoft LWC
how to take  hot backup of database manually
 
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can we take hot backup when the database is in noarchive log mode? =================================================================== no archive log list; alter database begin backup; can we shutdown a database when it is in backup mode? ===================================================== alter database begin backup; shutdown immediate; ==no shutdown normal;==no shutdown transcational;==no shutdown abort;==yes database is in hot backup mode,db crashes now how to recover and open the database? =================================================================================== alter databse begin backup; shutdown abort; ORA-10873: file 1 needs to be either taken out of backup mode or media recovered ORA-01110: data file 1: 'E:\DATABASE\DATABASE\ORADATA\ORCL\SYSTEM01.DBF' solution: startup mount; alter database end backup; alter database open; how to check whether the database is in backup mode or not? =========================================================== select * from v$backup; how to take hot backup of database manually? ============================================ alter database begin backup; copy datafiles manually from original location to backup location alter database end backup; alter system switch logfile; alter system switch logfile; alter system switch logfile; copy archives from archive location to backup location. alter database backup controlfile to trace; (or) alter database backup controlfile to location; copy controlfile to backup location. How to check current_scn number of database? ============================================= select CURRENT_SCN from v$database; select dbms_flashback.get_system_change_number from dual; select timestamp_to_scn(sysdate) from dual; how to check datafile header scn number? ========================================= select name,CHECKPOINT_CHANGE# from v$datafile_header; when checkpoint will occur? ============================ alter system switch logfile; alter database begin backup; alter database end backup; alter system checkpoint;(manual checkpoint) shutdown immediate;(when the database is down) what will happen when checkpoint occurs? ========================================= scn of datafile header will update;
Views: 1822 Praveen Biyyapu
Multiplexación de RedoLog files
 
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Vamos a agregar miembros a los grupos de Redo Logfiles de nuestra base de datos de Oracle desde el SQL Plus. Comandos: select group#, members, bytes from v$log; alter database add logfile member '/u03/app/oracle/oradata/orcl/REDO01' to group 1;
Views: 295 Codingraph
System Change Number in Oracle Database - SCN - DBArch Video 26
 
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In this video you will understand what is System Change Number in an Oracle Database, and get to know about some of the uses of it. . Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 3701 Ramkumar Swaminathan
Aula Arquitetura de Banco de Dados Oracle - Log Buffer/Redo Log File
 
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Vídeo Aula do Professor Marcio Henrique Guimarães Barbosa GPO (Grupo de Profissionais Oracle) - A maior comunidade Oracle do Brasil ! http://www.profissionaloracle.com.br
important files in oracle database
 
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Important files in oracle database control file, data file , redolog file, spfile, dumpfiles, audit files select name from v$controlfile; select name from v$datafile; select member from v$logfile; show parameter spfile; show parameter dump; show parameter audit;
Views: 924 Praveen Biyyapu
Oracle DBA, How to drop an online redolog member 1e5
 
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How to drop and online redolog member which has invalid status
Views: 987 hammadshams
Oracle Database and Instance Components - DBArch Video 3
 
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In this video you will learn about the Relationship between and Oracle Instance and an Oracle Database. You will know about the various components of an Instance ( SGA and Background Processes) and the various files of the Database and how they interact. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 23724 Ramkumar Swaminathan
Alert log file in Oracle
 
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Check Alert File Location in Oracle ================================================= DB is upp & Running ================== show parameter dump; select value from v$parameter where name='background_dump_dest'; DB is Down ===================================== find / -name alert_newdb.log 2 )/dev/null
Views: 2558 ANKUSH THAVALI
Recovering lost datafile with help of Backup and Non Switched Redo logs
 
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By Vivek Saxena Insa Shabad Coachings Rrecover lost datafile upto Current Position by storing it from backup and recovering with help Non switched redo logs fix: ORA-01157:cannot identify/lock data file ORA-01110: data file sqlplus/nolog conn/as sysdba shut immediate startup mount alter database noarchivelog; alter database open; shut immediate startup archive log list create table vivek (rn number(10)) tablespace vivek1; insert into vivek values(1); commit; //not switch the redo logs shut immediate startup shut immediate startup recover database alter database open select * from vivek;
SELECT statement Processing in an Oracle Database - DBArch  Video 7
 
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You will learn from this video how a SELECT statement is processed in an Oracle Database. You will learn about the a Parse, Execute and Fetch phases in a select statement. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 20637 Ramkumar Swaminathan
Activar modo Archive en Oracle
 
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Vamos a hacer que una base de datos esté en modo Archive con solo 4 instrucciones en SQL Plus: SHUTDOWN STARTUP MOUNT ALTER DATABASE ARCHIVELOG; ALTER DATABASE OPEN; Verificamos: SELECT LOG_MODE FROM V$DATABASE;
Views: 128 Codingraph
Oracle Architecture
 
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This video describes the best architecture of the oracle after trying more than times to Oracle structure I decided to produce an animated video let's start first with the database structure on the left side you have the client here on the right side you have to serve a two-year the server side is divided in three main structures to memory the logical structure and the physical structure so let's use SQL Plus application to provide you every step up a transaction will be using Scott sample schema it is important to note that the whole string is an alias and not a database name district will be compared to this alias inside of a file called pianist named doc or this file is similar to a DNS and with up pain all the necessary detail to reach a database server locally a user process will be allocated and will validate the connection through a listener the listener will be in charge to allocate a server process the user processes da link to the server process let's now execute our first transaction for this example we will execute an update first to state that will be validated we call this step the parsing this server process sense back to confirmation of the parsing that statement with be written into their share pool and the redo log buffer an execution plan will also be created it to the fair share Paul that database book they choose fought the transaction will be read and copy into the database buffer cache only that feel implicated in that transaction will be held it to a - segment till the transaction is completed we call those copies the before image a copy of this block will be duplicated with the updated feel this copy is called me after image a confirmation will be sent to to use a process the commit statement will complete the transaction and will be written into to redo log buffer to commit statement triggers the log writer process and we'll send all statement for the current transaction into the redo log file the before image into undo segment could be then deleted went that threshold up to undo retention parameters reach alaskan from Asian will be sent to the user process went to current law kiss Paul it generates a switch lock triggering at the same time the archiver process and to log sequence number the archiver will generate and archive the file with the content of the current loc a switch up with them trigger a checkpoint process that will incriminate the checkpoint number by applying this last number into each data file header the checkpoint process with finally trigger the database writer process enright the last image from that database buffer cache into thirty people
Views: 19759 Ezylearning
Oracle DBA, Redologs, hands on 1e2
 
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Oracle DBA redologs
Views: 1493 hammadshams
Redo Log File Multiplexing
 
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Oracle : Multiplexing of redo log file Like and subscribe channel .....
Oracle DBA, Adding  a redolog member to a group 1e4
 
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How to add members to redo log groups
Views: 1234 hammadshams
Parameters for Archiving in an Oracle database - Backup&Reco Video 7
 
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In this video you will learn about the various parameters available to configure archiving of redo log files in an Oracle Database. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 2868 Ramkumar Swaminathan
Arquitetura-Oracle- Log Buffer
 
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Este vídeo ilustra o funcionamento do mecanismo de Redo Log Buffer.
Views: 469 DBA Maker
Oracle DBA, log switch,  Log writer, Redolog, log sequence number, 1e3
 
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Oracle redolog and logwriter background process
Views: 3917 hammadshams
How to Start Physical Standby database & Check if Database is in Sync
 
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How to Start Physical Standby database & Check if Database is in Sync Dataguard Status ==================================================== Start Standby Database =============================== startup nomount alter database mount standby database; alter database recover managed standby database disconnect from session; DB STATUS ======================= select status,instance_name,database_role,protection_mode from v$database,v$instance; TO check if dataguard in synchronizing with standby. ============================================================================= select thread#,max(sequence#) from v$archived_log where applied='YES' group by thread#; Status of MRP Process --------------------------- select process,status,client_process,thread#,sequence#,block#,blocks,delay_mins from v$managed_standby; To get the diffrence between Recived and applied logs. ------------------------------------------------------- select MAX_RECEIVED,MAX_APPLIED,(MAX_RECEIVED - MAX_APPLIED) as "Difference" from (SELECT ARCHIVED_THREAD#, MAX(ARCHIVED_SEQ#) as MAX_RECEIVED, APPLIED_THREAD#, MAX(APPLIED_SEQ#) as MAX_APPLIED FROM V$ARCHIVE_DEST_STATUS) ARCH ; ================================================= Hi Folks, Greetings!! I am professional part time oracle dba trainer and having good experience in oracle database administration. This is the right place to enroll yourself for Oracle DBA real time course. Please use following email ID for more details. Don’t hesitate to WhatsApp me any time. I will give you the best training and will create path to get DBA job easily. Enjoy the free YouTube video and connect with me for deep Oracle DBA knowledge. Mobile No : + 91 9960262955 (WhatsApp Number) EmailID: [email protected] Please visit my official website for oracle database training and hadoop blog. https://www.orcldata.com/ Please donate on below link if you think I am helping you with your career. https://www.paypal.me/ankushthavali OR Google Pay : 9960262955 OR Account No : 31347845762 IFSC: SBIN0012311 how to check data guard status oracle how to check lag in data guard how to sync primary and standby database in oracle how to check archive log gap standby database how to check if archive logs are applied to standby database query to check archive log gap how to check if database has standby how to check standby database name from primary
Views: 1028 ANKUSH THAVALI
Data Pump,  Oracle DBA, export whole schema and import selected objects, 1e18
 
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How to use datapump to export whole schema
Views: 29382 hammadshams
Multi-User Concurrent Transactions in an Oracle Database - DBArch  Video 12
 
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This video explains how an Oracle Database manages multi-user concurrent transactions. A database a multi-user environment and this video tells you how redo and data files are managed by an Oracle Instance / Database. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 6151 Ramkumar Swaminathan
Incomplete Database Recovery Until Time in Oracle
 
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By Vivek Saxena Insa Shabad Coachings Shamli Recovering a droped table with the help of active redo log archives means in archive mode. Set time on Shut immediate Taking cold backup Startup Create table vivek(rn number) tablespace vivek1; Insert into vivek1 values(1); / Many times Commit; Select * from vivek1; Drop table vivek1; Archive log list // Show automatic archival enabled Alter system switch logfile; / Many times Shut immediate // Now replace database data folder by old backup data folder Startup mount // Now Recover database until time just before table deletion Recover database until time '2010-07-30:20:08:13' ; // Now specify log Auto Alter database open resetlogs ; Select * from vivek1;
TABLESPACE MANAGEMENT READ ONLY READ WRITE LOGGING NOLOGGING OFFLINE ONLINE MODES
 
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How to put tablespace in read only, read write, logging , nologging, online, offline =================================================================================== alter tablespace king read only; (we can only read the data(select will work)) alter tablespace king read write; (we can read and write data) alter tablespace king logging; (changes will record in redolog) alter tablespace king nologging; (changes will not record in redolog) alter tablespace king online; (everyone can access) alter tablespace king offline; (can't access) select tablespace_name,status,logging from dba_tablespaces;
Views: 628 Praveen Biyyapu
RECOVER LOST  DataFile in oracle database
 
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Please donate on below link if you think I am helping you with your career. https://www.paypal.me/ankushthavali OR Google Pay : 9960262955 OR Account No : 31347845762 IFSC: SBIN0012311 DATAFILE file Lost ================================ Archive log mode-Enabled create tablespace test_ts datafile '/u01/app/oracle/oradata/testdb/ts_test02.dbf' size 10M; create table testtable (id number(5))tablespace test_ts; insert into testtable (id) select * from testtable; SQL>select count(*) from testtable; COUNT(*) ---------- - before deleting datafile 524288 SQL>select count(*) from testtable; COUNT(*) ---------- - After recovery 524288 select tablespace_name, segment_name from dba_segments where segment_name = 'TESTTABLE'; alter system flush buffer_cache; alter database create datafile '/u01/app/oracle/oradata/testdb/ts_test02.dbf' as '/u01/app/oracle/oradata/testdb/ts_test02.dbf' alter database datafile '/u01/app/oracle/oradata/testdb/ts_test02.dbf' offline drop; alter database create datafile '/u01/app/oracle/oradata/testdb/ts_test02.dbf' as '/u01/app/oracle/oradata/testdb/ts_test02.dbf' recover datafile '/u01/app/oracle/oradata/testdb/ts_test02.dbf'; alter database datafile '/u01/app/oracle/oradata/testdb/ts_test02.dbf' online; select count(*) from TESTTABLE; =================================================== Please like,subscribe my channel. Kindly contact for online training on below contacts. Emai: [email protected] Mob No: +91 9960262955 ====================================================== Hi Folks, Greetings!! I am professional part time oracle dba trainer and having good experience in oracle database administration. This is the right place to enroll yourself for Oracle DBA real time course. Please use following email ID for more details. Don’t hesitate to WhatsApp me any time. I will give you the best training and will create path to get DBA job easily. Enjoy the free YouTube video and connect with me for deep Oracle DBA knowledge. Mobile No : + 91 9960262955 (WhatsApp Number) EmailID: [email protected] how to recover lost datafile in oracle how to recover a datafile in oracle without backup how to recover a deleted datafile in oracle 11g how to recover datafile in oracle rman restore datafile oracle missing datafile after clone how to recover system datafile in oracle without backup oracle datafile deleted accidentally
Views: 817 ANKUSH THAVALI
What are the different types of Tablespaces in an Oracle Database - DBArch Video 23
 
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In this video you will understand about the different types of tablespaces and their use/purpose. . Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 8899 Ramkumar Swaminathan
DML Processing in an Oracle Database -  DBArch Video 8
 
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This video explains the steps involved in processing a DML statement in an Oracle Database Server. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 47442 Ramkumar Swaminathan
Crash Recovery in Oracle RAC - DBArch Video 16
 
06:37
In this video you will understand how an Oracle RAC cluster recovers from an Instance Crash which is also called Crash Recovery. The video will use the whiteboard to show you what happens when one of the nodes crashes in a Cluster and how the surviving node recovers the failed node related transactions. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 10147 Ramkumar Swaminathan
Oracle Database Shutdown - DBArch Video 14
 
06:36
In this video you learn what happens when an Oracle Database is Shutdown. You will learn about the different types of Shutdown and the intricate details of what happens in each of the types. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 5294 Ramkumar Swaminathan
How to log in to an Oracle Database - Answer Video - Database Tutorials 42
 
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How to log in to an Oracle Database - Answer Video - Database Tutorials 42 This video explains about how to log in to an Oracle database. This also explains about how to create an user and grant a role to that user. In this case, the role granted is 'dba'. The following things happen in this Oracle Database Tutorial. * We invoke SQLPLUS using the CMD utility which came with Windows 7 (Just click START in your Windows 7 and type CMD in the field which is immediately above the START button. A CMD window will open) * We also invoke SQLPLUS using the program group in which Oracle has been installed. * We also invoke Database Control * We then create a user. * And we assign a password to that user. * Using those (username and password) we are able to connect to the Oracle Database.
Views: 10505 Sam Dhanasekaran
Oracle Data Guard - Architecture
 
15:44
Oracle Data Guard - Architecture
SCPT 5: Parameter Files in Database
 
20:45
Oracle DBA Tutorials For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 60559 Oresoft LWC
Oracle Database tablespace,  Datafile and control files
 
22:43
Oracle tablespace are logical containers of datafiles. Datafiles are physical files which contains data stored in binary format. Control file contains information about the database and the datafile location as well as checkpoint information
Views: 150 joey de jesus
Oracle DBA, Implement archive log mode 1e8
 
08:59
how to implement archive log mode in oracle
Views: 1607 hammadshams
Simulación recuperación ante desastre con RMAN
 
37:59
Administración de Bases de Datos - Unipanamericana - 2017 1. Ver la configuración actual de RMAN Ejecutamos: rman target / Para ver la configuración actual del RMAN Ejecutamos: SHOW ALL; 2. Cambiar algunos parámetros de configuración del RMAN - Para configurar la ubicación de los archivos de backup... Ejecutamos: CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT 'D:\backup\full_%u'; CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO 'D:\backup\full_%f'; - Para configurar el período de retención... Ejecutamos: CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS; Ahora verificamos que los dos cambios están hechos... Ejecutamos: SHOW ALL; En caso que se quiera limpiar un parámetro, por ejemplo, la política de retención... Ejecutamos: CONFIGURE RETENTION POLICY CLEAR; 3. Respaldar la Base de Datos Oracle - Respaldo completo de la base de datos sin el archivo de registro... Ejecutamos: BACKUP DATABASE; - Respaldo completo de la base de datos con el archivo de registro... Ejecutamos: BACKUP DATABASE PLUS ARCHIVELOG DELETE INPUT; Si fall el commando anterior… run { shutdown immediate startup mount backup database plus archivelog delete input; SQL 'ALTER DATABASE OPEN'; } -- Respaldo de un tablespace... BACKUP AS BACKUPSET TABLESPACE USERS; 4. Comprimir un respaldo Ejecutamos: BACKUP AS COMPRESSED BACKUPSET TAG 'DAILY_ORCL_BK_ONLY' TABLESPACE USERS; 5. Ver todos los respaldos de RMAN Ejecutamos: LIST BACKUP SUMMARY; - Para ver el estado de los respaldos cuando RMAN está en ejecución... Ejecutamos SELECT OPERATION, STATUS, MBYTES_PROCESSED, START_TIME, END_TIME from V$RMAN_STATUS; 6. Simular el desastre Estando en la consola de RMAN, ejecutamos: SHUTDOWN ABORT; - Abrimos una consola de texto de Windows... Nos pasamos a D:\app\oracle\product\11.2.0\dbhome_1\dbs Ejecutamos: del perf11.ora del init.ora - En SQLPlus, vamos a averiguar la ubicación de los archivos de datos, de control y logs... Ejecutamos: select name from v$datafile; select member from v$logfile; select name from v$controlfile; show parameter dump_dest Es importante averiguar el Oracle DBID, si no lo tenemos, se presentará un error al recuperar los archivos spfile y controlfile... Ejecutamos: select DBID from v$database; DBID ---------- 1470628578 Tomamos nota de las rutas... - De nuevo, en la consola de texto de Windows, nos pasamos a la carpeta donde se encuentran los archivos de datos de oracle... Ejecutamos del *.* /f 7. Restaurar la base de datos Accedemos de nuevo a la consola de RMAN Ejecutamos: rman target / set dbid=1470628578; startup force nomount; restore spfile to 'D:\app\oracle\product\11.2.0\dbhome_1\dbs\perf11.ora' from 'D:\backup\FULL_0KS4QNS7'; shutdown immediate; quit -- Verificamos que el archivo restaurado, y vovemos a la consola de RMAN rman target / startup nomount; set dbid=1470628578; restore controlfile from 'D:\backup\FULL_0KS4QNS7'; alter database mount; Ahora vamos a restaurar y recuperar la base de datos... Accedemos de nuevo a la consola de RMAN Ejecutamos: rman target / restore database; recover database; alter database open resetlogs;

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