Oracle Database 21c brings an exciting new feature to Data Pump:
the ability to use both INCLUDE and EXCLUDE parameters in the same command. This enhancement provides more granular
control over which objects are included or excluded during export and
import operations.
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ASM
- Creating ASM Instance and diskgroups manually without DBCA
- 20 ASM Realtime | Interview Questions
- How to make a cold backup for database running on ASM ( using RMAN )
- Moving a Single Datafile from File System to ASM System (METHOD 1)
- Moving a Single Datafile from File System to ASM System (METHOD 2)
- Things to consider while adding new disk/ Rebalancing existing Disk Group
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Dataguard
- Dataguard Modes
- Dataguard Modes - II
- Oracle DataGuard Setup
- invalid archived log deletion policy
- recover from the Loss of a Datafile on a Standby Database ?
- MRP terminated with ORA-00600: internal error code, arguments
- Recover archive gaps in standby database - using 2 methodss
- Gap Resolution in Dataguard
- Convert Physical Standby to Snapshot Standby and Vice Versa
- Re-create Redo-logs on Standby/ Primary
- Pre-check for DataGuard switchover Process
- ORA-19815: WARNING: db_recovery_file_dest_size
- How do you purge old archivelogs which are applied on Standby DB
- Pre-check For SWITCHOVER using DG Broker
- https://oracle-dba-help.blogspot.com/2016/03/data-guard-modes.html
- ORA-01274 : RENAME THE UNKNOW FILE IN THE STANDBY DATABASE
- Database Creation in Easy 6 Steps
- Oracle Networking
- Tablespace management
- Housekeep : Quick Tips for DBA
- Health check for DB
- ORA-12537 While Connecting To Database Via Listener
- How to identify the applied patche-set of your Oracle Home
- Accessing a schema without knowing the password
- ORA-12505: TNS:listener does not currently know of SID given in connect descriptor
- Session Related Scripts
- How to check ORA Error on DB Server – Beginner Tip
- Working with Redo Logs
- Decommission of Oracle Database
- Roles in Oracle - Managing Users
- Oracle Release Number Format
- Troubleshooting Handy-Guide
- Understanding the Upgradation Process
- Query to find the session creating more redo
- Audit in Oracle
- Troubleshooting Internal Errors and Error-Look-up Tool on MOS
- Troubleshooting Issues with Undo Tablespace
- User Management
- User Management - II
- Data Pump Gets Better
- MEMORY_TARGET Parameter
- Oracle 21c: INCLUDE and EXCLUDE in Data Pump
- Behind the Scenes of COMMIT
- Data Guard Redo Transport Encryption
- Oracle 19C with ADG DML Redirection
- 19c PDB Refreshable Clones
- Solving the Mysterious Database Connection Timeouts
- How to identify the applied patche-set of your Oracle Home
- Topic need to get clear to become expert in Oracle DBA
- Working with Redo Logs
- Oracle Database Block corruption
- What happens during Instance Recovery
- Oracle Datapump Scenarios
- Troubleshooting Issues with Undo Tablespace
- General Tips to Prepare for an Oracle DBA Job Interview
- RMAN Questions
- Installing PostgreSQL Server on CentOS, RHEL 6 / 7 Systems
- Creating a database in Postgres
- Initialize multiple Postgres instance on the same RHEL server
- How to stop starting of clusters while starting up services
- Setup a streaming replication
- Switchover- master server and warm standby (with streaming replication)
- All About Physical Replication and Log shipping
- PostgreSQL Upgrade and troubleshooting
- Timeline Switch issue
- Query to identify the lag in replication
- Drop table : ERROR: must be owner of relation table_name
- PgBadger
- PgCenter
- PgTune
- Internals of Toast Table
- Influencing Query Execution Plan
- Create Extension ERROR
- Find Uptime in PostgreSQL
- Set DB Timezone
- Clear RAM Cache, Buffer
- Read-Only User in Postgres
- Everything you need to know about Streaming Replication
- Ora2Pg Migrate Oracle to Postgres
- Total Page Cost
- PostgreSQL 13 - Everything you need to know
- Startup Failure - .conf file
- All About Postgres Upgrade
- Basic Guide
- Session Related Scripts
- AWR :: Beginners Guide
- All About ASH - Active Session History
- Wait Events : checkpoint busy waits or archiver busy waits
- Find sessions performing sort operations : TEMP Tablespace occupants
- Generate ADDM task and generate its report for Tuning
- Database Performance Tuning Scripts -Keep Handy
- Buffer Busy Wait
- Simulating the Deadlock
- Latches
- Steps to Schedule any RMAN Jobs In Windows Server
- ORA-01194: file 1 needs more recovery to be consistent
- Loss of Current Online Redo-Log
- RMAN "baby Steps"
- Recovery of ControlFiles
- Loss of Datafile
- Recovery from complete loss of all online redo log files
- Block Change Tracking
- RMAN Questions
- Instance Recovery
- Redundancy and Recovery window in RMAN
- Cold Backup
- Database Cloning
- Contact
- Drop Database using RMAN
- PITR to older Incarnation
Tuesday, 28 May 2024
Monday, 27 May 2024
Optimizing Oracle Streams Performance: Addressing Slow Goldengate Integrated Replicat Apply Process
In high-transaction environments, Oracle Streams can face performance
bottlenecks, particularly with the sys.streams$_apply_progress
segment growing unpredictably. To maintain efficient replication, it's
crucial to periodically check and reorganize this segment. This blog post
details a method to perform an offline reorganization of the STREAMS$_APPLY_PROGRESS
table, helping ensure smoother and faster replication processes.
Sunday, 26 May 2024
Enhancing Oracle SGA Security: A Guide for DBAs
Managing SGA Access via OS User group
In Oracle databases, securing the System Global Area (SGA) has become more robust, especially with recent updates after version 12. By default, only the Oracle software installation owner can read and write to the SGA. This enhancement significantly boosts security compared to previous configurations. Let's dive into the key changes and why they matter.Behind the Scenes of COMMIT in Oracle: A Peek Under the Hood
Ever wondered what really happens when you hit the COMMIT button in Oracle?
Step-by-step Guide to COMMIT
Troubleshooting Invalid Username/Password Errors During Switchover and Failover with Oracle 12C Broker
As a database administrator, one of the issues you can encounter during a switchover or failover is the dreaded "invalid username/password" error. I recently faced this issue while working with Oracle 12C Broker and, after much investigation, discovered the root cause. Let me walk you through my experience and how I resolved it.
Sunday, 19 May 2024
Guarding Your Data: Unveiling the Secrets of Data Guard Redo Transport Encryption
Get ready to dive into the world of Data Guard Redo Transport Encryption in Oracle – it's encryption galore! From securing the journey between primary and far sync instances to ensuring standby databases stay protected, we're about to encrypt our way to peace of mind.
Friday, 10 May 2024
Understanding RMAN-08137 Warning and log_archive_dest_state_2 Reset: Investigating an Unusual Scenario
SCOPE
The article covers possible solutions to resolve warnings that appear in RMAN backups due to incorrect database configurations. Continuing from my previous post on RMAN backup failure warnings, I am now addressing another situation.
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