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Redo Logs in an Oracle Database - DBArch Video 11
 
08:54
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: 13194 Ramkumar Swaminathan
oracle database Redo logfile management
 
26:07
watch this video about Redo logfile management defiantly improve your subject
Views: 3842 COMBINATIONS FOR ALL
SCPT 8: Redo Log Files
 
13:12
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: 49835 Oresoft LWC
Oracle DBA, log switch,  Log writer, Redolog, log sequence number, 1e3
 
06:08
Oracle redolog and logwriter background process
Views: 3917 hammadshams
Log your putty session into text files
 
07:04
https://dbagenesis.com/p/the-ultimate-putty-guide-using-putty-for-ssh PuTTY is a free and open-source terminal emulator, serial console and network file transfer application. It supports several network protocols, including SCP, SSH, Telnet, rlogin, and raw socket connection. It can also connect to a serial port. The name "PuTTY" has no definitive meaning.
Views: 2564 DBA Genesis
قواعد البيانات 9 (Redo Log File,Archive Log File (Oracle DBA 11g Tutorial
 
17:23
Oracle DBA 11g Tutorial Redo Log File , archive log file online redo log offline redo log file archive log file Log Switches
Views: 559 Ahmed Ybat
Oracle Basics: ARCHIVELOG mode
 
15:29
Understanding Oracle's ARCHIVELOG mode
Views: 12245 Chris Ostrowski
Oracle Tuning - Diagnosticando e corrigindo lentidão - LOG FILE SWITCH
 
07:33
Oracle Tuning - Diagnosticando e corrigindo lentidão - LOG FILE SWITCH
Views: 855 Nerv
Oracle DBA, Adding  a redolog member to a group 1e4
 
03:53
How to add members to redo log groups
Views: 1234 hammadshams
Oracle Database11g tutorials 9 || What is archive log mode and how to enable archive log mode
 
07:23
weblink: www.rebellionrider.com What is archive log mode What is noarchive log mode How to enable archivelog mode in oracle 11g How to enable archivelog mode in oracle 10g This SQL tutorial and Oracle database 11g tutorial for beginners will show what are ARCHIVELOG mode and noarchive log mode and how to enable archivelog mode in oracle database 11g or 10g Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from The Code makers
Views: 93774 Manish Sharma
Oracle 11g Multiplexing Your Online Redo Log Files
 
03:31
Multiplexing Your Online Redo Log Files in Oracle 11g using Enterprise Manager Database Control
Views: 3064 DBASoup
Oracle DBA Justin - How to reset the log sequence number in an Oracle database
 
10:39
How to reset the log sequence number in an Oracle database
Views: 5043 jbleistein11
Redo Log - Oracle
 
04:34
Redo Log Files en Oracle
SCPT 21: Oracle Back Ground Processes ( CKPT, DBWR, LGWR, ARCH)
 
19:47
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: 58438 Oresoft LWC
how to create redolog files and clean the redo log files
 
03:19
for more vedios www.oraman.in
Views: 994 oramandba
Oracle Tutorial in Hindi - How to Multiplex/Mirror a Redo Log File of an Oracle Database
 
16:02
How to Multiplex/Mirror a Redo Log File of an Oracle Database... by Lalit Saini....
Views: 5288 Oracle World
Recovery of Redo log file using Log Sequence number by RMAN
 
13:50
Hi friends today I am showing you to Recovery of Redo log file using Log Sequence number by RMAN (Recovery Manager).This is a simple method and easy way to recovery redo members. Oracle database Unbeatable,Unbreakable Platform..
Views: 5783 Oracle World
Oracle 10g Redo Log Files
 
36:36
Session About Oracle 10g Redo Log Files and Archived files. How to manage and maintain Redo logs groups and files (Create, Add, Drop, Rename, Move and Switch)
Views: 3091 ITLecture
Oracle username and password and Account unlocking
 
08:37
all education purpose videos
Views: 265392 Chandra Shekhar Reddy
Oracle Tutorial For Beginners - Redo Log File Incomplete Recovery
 
09:56
Hello guys in this tutorial i briefly explaining how to recover a redo log file from archive backup...its called a Cancel Based Recovery... By Lalit saini
Views: 3111 Oracle World
oracle location of alert log file
 
01:11
http://dbacatalog.blogspot.com
Views: 1895 dbacatalog
How to reszie the redolog file
 
14:15
In this video i'm going to demonstrate you how to resize the redolog file step by step, this is only one method to resize the redolog file.
Views: 2135 OCP Technology
oracle tutorial for beginners - Redo Log File Recovery in Hindi.
 
03:09
incomplete recovery of redo log files.
Views: 1486 OCP Technology
Oracle Architecture
 
04:11
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: 19736 Ezylearning
Oracle DBA, Redo logs 1e1
 
05:18
Views: 3811 hammadshams
when checkpoint will occur in oracle database
 
14:13
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: 3312 Praveen Biyyapu
Oracle 11g Multiplexing Your Online Redo Log Files
 
04:04
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 Tuning - Diagnosticando e corrigindo lentidão - LOG FILE SYNC
 
05:31
Oracle Tuning - Diagnosticando e corrigindo lentidão - LOG FILE SYNC
Views: 1295 Nerv
Oracle DBA Justin - How to rename/move an online redo log file
 
09:20
How to rename/move an online redo log file
Views: 4960 jbleistein11
Controlfile & redolog file management
 
39:45
Multiplexing the control file, adding Redolog to the database, Adding Redolog member to the existing group, Drop Redolog member tfrom the database, Drop Redolog group from databse, Resizing Redo log groups, an last but not the list.... Views.
Views: 3454 techbrain
Oracle DBA, controlfiles, datafiles, online redolog files 1e6
 
03:26
Three very important files in oracle database
Views: 3215 hammadshams
Oracle DBA Justin - How to mirror/multiplex online redo log files
 
08:32
How to mirror/multiplex online redo log files
Views: 5815 jbleistein11
Oracle DBA, SPfile and Pfile, Initialization parameters, 1e14
 
10:47
Oracle initialization parameter file
Views: 9804 hammadshams
How to Install Oracle! !! Database Training
 
01:50
For Complete Database Training Details Visit: http://www.qaonlinetraining.com http://infotek-solutions.com/ Delivery Method: Instructor led classroom and Online Training supported by world class Learning management system which automate all flow of lectures, videos, assignments, forums, quizzes and interview process. Class Schedule: Week-ends and Weekdays Contact Us: 571-437-0652, Mail Us: [email protected] Training Locations at : Ashburn / Fairfax / Maryland Office Address: 12801 Worldgate Dr #500, Herndon, VA 20170 Overview of Oracle DBA Training Oracle as a flexible, complex & robust RDBMS The evolution of hardware and the relation to Oracle Different DBA job roles (VP of DBA, developer DBA, production DBA, database babysitter) The changing job role of the Oracle DBA Environment management (network, CPU, disk and RAM) Instance management (managing SGA regions) Oracle table and index management Instance Architecture Instance vs. database Components of an instance Creating the OFA file structure ($DBA, bdump, udump, pfile) Oracle Instance Internals SGA vs. PGA Background processes Interfaces with server and disk I/O subsystem Using SQL*Plus for DBA management Connecting and executing SQL Using the “as sysdba” syntax Overview of SQL*Plus DBA commands (startup, etc.) Control file, UNDO and REDO management Explaining the use of control files Listing the Contents of the control File File locations for control Files Obtaining Control File Information Listing control file contents Displaying and Creating Undo segments Altering Undo Segments Determining the Number and Size of Undo segments Understanding flashback technology Troubleshooting Undo – snapshot too old Redo log concepts for recovery Online redo log (log_buffer) online redo logs and archived redo logs Oracle ARCH and LGWR background processes Redo log dictionary queries Redo log switch frequency and performance Multiplexing the Online Redo Log Files Archiving the Oracle Redo Logs Recovery using the redo log files User and privilege management The three security methods (VPD, Grant security/role-based security, grant execute) Creating New Database Users Using pre-spawned Oracle connections Auditing User activity Identifying System and Object Privileges Granting and Revoking Privileges Creating and Modifying Roles Displaying user security Information from the Data Dictionary Overview of instance management Parameter files (init.ora, listener.ora, tnsnames.ora) Rules for sizing SGA components Automated Oracle memory management (AMM) Initialization file management Creating the init.ora file Using spfile Displaying init.ora values with v$parameter Oracle*Net configuration Creating the listener.ora file Creating the tnsnames.ora file Data buffer configuration & sizing Inside the Oracle data buffers Using the KEEP pool Monitoring buffer effectiveness Using multiple blocksizes (multiple buffer pools) Shared pool and PGA configuration & Sizing Shared pool concepts and components Understanding the library cache Relieving shared pool contention Overview of PGA for sorting and hash joins Using sort_area_size, hash_area_size and pga_aggregate_target Troubleshooting network connectivity Verifying network connectivity with ping and tnsping Testing database links Oracle tables, views and materialized views Types of Oracle tables (regular, IOT, sorted hash clusters, nested tables) Oracle Views Oracle materialized views Oracle indexes Types of Oracle indexes (b-tree, bitmap, bitmap join index) Creating B*-Tree, bitmap and function-based Indexes Function-based indexes Finding indexing opportunities Index maintenance Oracle constraints Costs & benefits of constraints Types of Oracle indexes constraints (check, not null, unique, PK, FK) Cascading constraints Schema, File & tablespace management Describing the relationship between data files, tablespaces and table Understanding Oracle segments Creating Tablespaces – using the autoextend option Changing the Size of Tablespaces – alter database datafile command Defining a TEMP tablespace Changing the default storage Settings for a tablespace Review of the storage parameters in DBA views (ASM, ASSM, pctfree, pctused and freelists). Monitoring Chained rows (fetch continued rows) Monitoring Insert and Update performance (pctused, APPEND) Database Maintenance Reason for reorgs – chained rows, imbalanced freelists Reorganizing Tables using Export and Import Using CTAS to reorganize data Index rebuilding Backup & Recovery overview (hot & cold Backups, RMAN, block change tracking) Oracle DBA Utilities Data pump (Imp and exp utilities) SQL*Loader LogMiner Flashback DataGuard Oracle DBA utilities – Oracle dbms packages (dbms_redefinition)
07 - Redolog file mgmt
 
10:09
Views: 292 Khadeer Khan
can we take hot backup when the database is in noarchive log mode
 
03:42
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: 304 Praveen Biyyapu
How to Setup Mysql on your machine
 
03:11
For Complete Database Training Details Visit: http://www.qaonlinetraining.com http://infotek-solutions.com/ Delivery Method: Instructor led classroom and Online Training supported by world class Learning management system which automate all flow of lectures, videos, assignments, forums, quizzes and interview process. Class Schedule: Week-ends and Weekdays Contact Us: 571-437-0652, Mail Us: [email protected] Training Locations at : Ashburn / Fairfax / Maryland Office Address: 12801 Worldgate Dr #500, Herndon, VA 20170 Overview of Oracle DBA Training Oracle as a flexible, complex & robust RDBMS The evolution of hardware and the relation to Oracle Different DBA job roles (VP of DBA, developer DBA, production DBA, database babysitter) The changing job role of the Oracle DBA Environment management (network, CPU, disk and RAM) Instance management (managing SGA regions) Oracle table and index management Instance Architecture Instance vs. database Components of an instance Creating the OFA file structure ($DBA, bdump, udump, pfile) Oracle Instance Internals SGA vs. PGA Background processes Interfaces with server and disk I/O subsystem Using SQL*Plus for DBA management Connecting and executing SQL Using the “as sysdba” syntax Overview of SQL*Plus DBA commands (startup, etc.) Control file, UNDO and REDO management Explaining the use of control files Listing the Contents of the control File File locations for control Files Obtaining Control File Information Listing control file contents Displaying and Creating Undo segments Altering Undo Segments Determining the Number and Size of Undo segments Understanding flashback technology Troubleshooting Undo – snapshot too old Redo log concepts for recovery Online redo log (log_buffer) online redo logs and archived redo logs Oracle ARCH and LGWR background processes Redo log dictionary queries Redo log switch frequency and performance Multiplexing the Online Redo Log Files Archiving the Oracle Redo Logs Recovery using the redo log files User and privilege management The three security methods (VPD, Grant security/role-based security, grant execute) Creating New Database Users Using pre-spawned Oracle connections Auditing User activity Identifying System and Object Privileges Granting and Revoking Privileges Creating and Modifying Roles Displaying user security Information from the Data Dictionary Overview of instance management Parameter files (init.ora, listener.ora, tnsnames.ora) Rules for sizing SGA components Automated Oracle memory management (AMM) Initialization file management Creating the init.ora file Using spfile Displaying init.ora values with v$parameter Oracle*Net configuration Creating the listener.ora file Creating the tnsnames.ora file Data buffer configuration & sizing Inside the Oracle data buffers Using the KEEP pool Monitoring buffer effectiveness Using multiple blocksizes (multiple buffer pools) Shared pool and PGA configuration & Sizing Shared pool concepts and components Understanding the library cache Relieving shared pool contention Overview of PGA for sorting and hash joins Using sort_area_size, hash_area_size and pga_aggregate_target Troubleshooting network connectivity Verifying network connectivity with ping and tnsping Testing database links Oracle tables, views and materialized views Types of Oracle tables (regular, IOT, sorted hash clusters, nested tables) Oracle Views Oracle materialized views Oracle indexes Types of Oracle indexes (b-tree, bitmap, bitmap join index) Creating B*-Tree, bitmap and function-based Indexes Function-based indexes Finding indexing opportunities Index maintenance Oracle constraints Costs & benefits of constraints Types of Oracle indexes constraints (check, not null, unique, PK, FK) Cascading constraints Schema, File & tablespace management Describing the relationship between data files, tablespaces and table Understanding Oracle segments Creating Tablespaces – using the autoextend option Changing the Size of Tablespaces – alter database datafile command Defining a TEMP tablespace Changing the default storage Settings for a tablespace Review of the storage parameters in DBA views (ASM, ASSM, pctfree, pctused and freelists). Monitoring Chained rows (fetch continued rows) Monitoring Insert and Update performance (pctused, APPEND) Database Maintenance Reason for reorgs – chained rows, imbalanced freelists Reorganizing Tables using Export and Import Using CTAS to reorganize data Index rebuilding Backup & Recovery overview (hot & cold Backups, RMAN, block change tracking) Oracle DBA Utilities Data pump (Imp and exp utilities) SQL*Loader LogMiner Flashback DataGuard Oracle DBA utilities – Oracle dbms packages (dbms_redefinition)
Real-World Performance - 17 - Database Log Writer
 
16:15
Check out the entire series on the Oracle Learning Library at http://www.oracle.com/goto/oll/rwp In this video, listen and watch Andrew Holdsworth, Vice President of Oracle Database Real-World Performance at Oracle Corporation, as he explains how the Database Log Writer affects performance. Copyright © 2014 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
SCPT 13: Oracle Redo Buffer Cache
 
15:48
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: 26790 Oresoft LWC
Oracle Redo Log Files.avi
 
06:49
En este video se describe la función, estructura y configuración de los archivos Redo Log Online de la base de datos Oracle
Views: 734 CastilloMauricio
How to change Archive Destination in Oracle
 
05:40
How to change Archive Destination in Oracle ======================================== Syantax ============= alter system set log_archive_dest_1='LOCATION=/home/Archive/' scope=both; =============================================== 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]
Views: 805 ANKUSH THAVALI
How to run VBScript programs !! Database Training Training ! Infotek-SolutionInc
 
02:26
For Complete Database Training Details Visit: http://www.qaonlinetraining.com http://infotek-solutions.com/ Delivery Method: Instructor led classroom and Online Training supported by world class Learning management system which automate all flow of lectures, videos, assignments, forums, quizzes and interview process. Class Schedule: Week-ends and Weekdays Contact Us: 571-437-0652, Mail Us: [email protected] Training Locations at : Ashburn / Fairfax / Maryland Office Address: 12801 Worldgate Dr #500, Herndon, VA 20170 Overview of Oracle DBA Training Oracle as a flexible, complex & robust RDBMS The evolution of hardware and the relation to Oracle Different DBA job roles (VP of DBA, developer DBA, production DBA, database babysitter) The changing job role of the Oracle DBA Environment management (network, CPU, disk and RAM) Instance management (managing SGA regions) Oracle table and index management Instance Architecture Instance vs. database Components of an instance Creating the OFA file structure ($DBA, bdump, udump, pfile) Oracle Instance Internals SGA vs. PGA Background processes Interfaces with server and disk I/O subsystem Using SQL*Plus for DBA management Connecting and executing SQL Using the “as sysdba” syntax Overview of SQL*Plus DBA commands (startup, etc.) Control file, UNDO and REDO management Explaining the use of control files Listing the Contents of the control File File locations for control Files Obtaining Control File Information Listing control file contents Displaying and Creating Undo segments Altering Undo Segments Determining the Number and Size of Undo segments Understanding flashback technology Troubleshooting Undo – snapshot too old Redo log concepts for recovery Online redo log (log_buffer) online redo logs and archived redo logs Oracle ARCH and LGWR background processes Redo log dictionary queries Redo log switch frequency and performance Multiplexing the Online Redo Log Files Archiving the Oracle Redo Logs Recovery using the redo log files User and privilege management The three security methods (VPD, Grant security/role-based security, grant execute) Creating New Database Users Using pre-spawned Oracle connections Auditing User activity Identifying System and Object Privileges Granting and Revoking Privileges Creating and Modifying Roles Displaying user security Information from the Data Dictionary Overview of instance management Parameter files (init.ora, listener.ora, tnsnames.ora) Rules for sizing SGA components Automated Oracle memory management (AMM) Initialization file management Creating the init.ora file Using spfile Displaying init.ora values with v$parameter Oracle*Net configuration Creating the listener.ora file Creating the tnsnames.ora file Data buffer configuration & sizing Inside the Oracle data buffers Using the KEEP pool Monitoring buffer effectiveness Using multiple blocksizes (multiple buffer pools) Shared pool and PGA configuration & Sizing Shared pool concepts and components Understanding the library cache Relieving shared pool contention Overview of PGA for sorting and hash joins Using sort_area_size, hash_area_size and pga_aggregate_target Troubleshooting network connectivity Verifying network connectivity with ping and tnsping Testing database links Oracle tables, views and materialized views Types of Oracle tables (regular, IOT, sorted hash clusters, nested tables) Oracle Views Oracle materialized views Oracle indexes Types of Oracle indexes (b-tree, bitmap, bitmap join index) Creating B*-Tree, bitmap and function-based Indexes Function-based indexes Finding indexing opportunities Index maintenance Oracle constraints Costs & benefits of constraints Types of Oracle indexes constraints (check, not null, unique, PK, FK) Cascading constraints Schema, File & tablespace management Describing the relationship between data files, tablespaces and table Understanding Oracle segments Creating Tablespaces – using the autoextend option Changing the Size of Tablespaces – alter database datafile command Defining a TEMP tablespace Changing the default storage Settings for a tablespace Review of the storage parameters in DBA views (ASM, ASSM, pctfree, pctused and freelists). Monitoring Chained rows (fetch continued rows) Monitoring Insert and Update performance (pctused, APPEND) Database Maintenance Reason for reorgs – chained rows, imbalanced freelists Reorganizing Tables using Export and Import Using CTAS to reorganize data Index rebuilding Backup & Recovery overview (hot & cold Backups, RMAN, block change tracking) Oracle DBA Utilities Data pump (Imp and exp utilities) SQL*Loader LogMiner Flashback DataGuard Oracle DBA utilities – Oracle dbms packages (dbms_redefinition)
can we shutdown a database when it is in backup mode
 
02:28
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: 290 Praveen Biyyapu
Oracle DB - Multiplexing Redo Log Files
 
05:19
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
Oracle - Putting Your Database into ARCHIVELOG mode
 
18:05
Oracle - Putting Your Database into ARCHIVELOG mode
Views: 3023 Chris Ostrowski
Enable Archivelog Step by step by Le Anh
 
05:19
Enable Archivelog Step by step by Le Anh with user Oracle step 01: shutdown database shut immediate; step 02: startup nomount; startup nomount; step 02: config prameter: mkdir -p /u01/archivelog alter system set log_archive_start=TRUE SCOPE=SPFILE; System altered. alter system set log_archive_dest_1='LOCATION=/u01/archivelog' scope=spfile; System altered. step 04: Now we mount the database instance: alter database mount; Database altered. Step 05: And finally, we set the database to archive log mode: alter database archivelog; Database altered. Step 06: open database; alter database open; step 07: check archivelog archive log list; switch log ALTER SYSTEM SWITCH LOGFILE; Thanks;
Views: 21 Anh Lê Ngọc

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