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Oracle Data Guard 12c Online Training
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About Course
What is Oracle Data Guard (in brief)
Oracle Data Guard is Oracle’s solution for high availability (HA), disaster recovery (DR), and data protection. It allows you to maintain one or more standby databases (physical, logical, or snapshot) that remain synchronized (or almost synchronized) with the primary database. In case of failures or planned outages, you can fail over or switch over to a standby database, minimizing downtime and data loss.
Some of its key capabilities include:
- Redo transport (sync/async)
- Redo apply / SQL apply to standby
- Role transitions (switchover, failover)
- Data Guard Broker (centralized management)
- Fast-start failover
- Using standby for read-only reporting (Active Data Guard)
- Snapshot standby for testing/dev
- Integration with RMAN backups, Flashback, etc.
Because of this, Data Guard is a crucial topic for advanced Oracle DBAs, infrastructure architects, and operations/DR teams.
Oracle itself offers official training (e.g. Oracle Database 19c: Data Guard Administration)
Format, Duration & Delivery Modes
You’ll see these common delivery styles across training providers:
- Instructor-led live online (with scheduled classes, Q&A, labs)
- Self-paced (recorded videos + lab access)
- Hybrid (recorded + live doubt sessions)
- Hands-on labs are a must; good courses provide virtual lab setup or sandbox environments
Who Should Take It / Prerequisites
To get full benefit from the course, students should ideally have:
- Basic experience in Oracle Database administration (creating schemas, backup/restore, understanding of redo/archiving)
- Some exposure to SQL, RMAN, networking (Oracle Net), and OS fundamentals
- Understanding of Oracle architecture (processes, instance, datafiles, control files)
The audience typically includes:
- Oracle DBAs (mid-level or above)
- DR / High availability architects
- Infrastructure / operations teams responsible for database uptime
- Technical leads wanting to design robust database HA/DR solutions
Learning Outcomes / What You’ll Be Able to Do
After completing a good Oracle Data Guard course, you should be able to:
- Design a Data Guard architecture based on availability / recovery requirements
- Configure and manage physical, logical, and snapshot standby databases
- Use Data Guard Broker / Enterprise Manager to monitor and manage configurations
- Perform role transitions (switchover/failover) safely
- Use advanced features such as Active Data Guard, fast-start failover, flashback integration
- Handle configuration changes, patching, upgrades in a Data Guard environment
- Troubleshoot performance or sync issues, archive gaps, network latency, etc.
- Integrate Data Guard with backup and recovery strategies
Oracle Data Guard Training Course Syllabus
Introduction to Oracle Data Guard
- What Is Oracle Data Guard?
- Types of Standby Databases
- Types of Data Guard Services
- Role Transitions: Switchover and Failover
- Oracle Data Guard Broker Framework
- Choosing an Interface for Administering a Data Guard Configuration
- Oracle Data Guard: Architecture(Overview)
- Primary Database Processes
Networking for Oracle Data Guard
- Networking Overview
- Listener.ora Configuration
- Statics vs. Dynamic Registration
- Static Entries for Database Duplication and SQL Maintenance
- Static Entries for Broker Operations
- Oracle Network Configuration Tuning
- tnsnames.ora Configuration
Creating a Physical Standby Database by Using SQL and RMAN Commands
- Steps to Create a Physical Standby Database
- Preparing the Primary Database
- FORCE LOGGING Mode
- Configuring Standby Redo Logs
- Creating Standby Redo Logs
- Using SQL to Create Standby Redo Logs
- Viewing Standby Redo Log Information
- Setting Initialization Parameters on the Primary Database to Control Redo Transport
Oracle Data Guard Broker: Overview
- Oracle Data Guard Broker: Features
- Data Guard Broker: Components
- Data Guard Broker: Configurations
- Data Guard Broker: Management Model
- Data Guard Broker: Architecture
- Data Guard Monitor: DMON Process
- Benefits of Using the Data Guard Broker
- Comparing Configuration Management With and Without the Data Guard Broker
Creating a Data Guard Broker Configuration
- Data Guard Broker: Requirements
- Data Guard Broker and the SPFILE
- Data Guard Monitor: Configuration File
- Data Guard Broker: Log Files
- Creating a Broker Configuration
- Defining the Broker Configuration and the Primary Database Profile
- Adding a Standby Database to the Configuration
- Enabling the Configuration
Creating a Logical Standby Database
- Benefits of Implementing a Logical Standby Database
- Logical Standby Database: SQL Apply Architecture
- SQL Apply Process: Architecture
- Preparing to Create a Logical Standby Database
- Unsupported Objects
- Unsupported Data Types
- Checking for Unsupported Tables
- Checking for Tables with Unsupported Data Types
Creating and Managing a Snapshot Standby Database
- Snapshot Standby Databases: Overview
- Snapshot Standby Database: Architecture
- Converting a Physical Standby Database to a Snapshot Standby Database
- Activating a Snapshot Standby Database: Issues and Cautions
- Snapshot Standby Database: Target Restrictions
- Viewing Snapshot Standby Database Information
- Using DGMGRL to View Snapshot Standby Database Information
- Converting a Snapshot Standby Database to a Physical Standby Database
Using Oracle Active Oracle Data Guard
- Oracle Active Data Guard
- Using Real-Time Query
- Checking the Standby’s Open Mode
- Understanding Lag in an Active Data Guard Configuration
- Monitoring Apply Lag: V$DATAGUARD_STATS
- Monitoring Apply Lag: V$STANDBY_EVENT_HISTOGRAM
- Setting a Predetermined Service Level for Currency of Standby Queries
- Configuring Zero Lag Between the Primary and Standby Databases
Configuring Data Protection Modes
- Data Protection Modes and Redo Transport Modes
- Maximum Protection Mode
- Maximum Availability Mode
- Maximum Performance Mode
- Comparing Data Protection Modes
- Setting the Data Protection Mode by Using DGMGRL
- Setting the Data Protection Mode
Performing Role Transitions
- Role Management Services
- Role Transitions: Switchover and Failover
- Switchover
- Preparing for a Switchover
- Performing a Switchover by Using DGMGRL
- Considerations When Performing a Switchover to a Logical Standby Database
- Situations That Prevent a Switchover
Using Flashback Database in a Data Guard Configuration
- Overview of Flashback Database
- Configuring Flashback Database
- Using Flashback Database Instead of Apply Delay
- Using Flashback Database and Real-Time Apply
- Using Flashback Database After RESETLOGS
- Flashback Through Standby Database Role Transitions
Enabling Fast-Start Failover
- Fast-Start Failover: Overview
- When Does Fast-Start Failover Occur?
- Installing the Observer Software
- Fast-Start Failover Prerequisites
- Configuring Fast-Start Failover
- Setting the Lag-Time Limit
- Configuring the Primary Database to Shut Down Automatically
- Automatic Reinstatement After Fast-Start Failover
- Backup and Recovery Considerations in an Oracle Data Guard Configuration
- Using RMAN to Back Up and Restore Files in a Data Guard Configuration
- Offloading Backups to a Physical Standby
- Restrictions and Usage Notes
Backup and Recovery of a Logical Standby Database
- Using the RMAN Recovery Catalog in Oracle DataGuard Configuration
- Creating the Recovery Catalog Registering a Database in the Recovery Catalog
- Setting Persistent Configuration Settings
- Monitoring a Data Guard Broker Configuration
- Viewing the Data Guard Configuration Status
Multimedia in Android
- Playing Audio & Video files.
Oracle Data Guard Course Key Features
- Live Instructor based training with software
- Certification Oriented content
- Hands-on complete Realtime training
- Flexible schedule demo's & classes
- Live recorded videos access
- Study material provided
- JOB Assistance
Course completion certificate
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- Complete set of live-online training session recorded videos.
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- Learn as a full day schedule with discussions, exercises.
- Practical use cases.
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Oracle Data Guard Online Training FAQ'S
What is Oracle Data Guard?
Oracle Data Guard is a disaster recovery and data protection solution that ensures high availability of Oracle databases. It maintains synchronized standby databases (physical or logical) that can be used for failover, switchover, and read-only queries when the primary database is unavailable.
What are the different types of standby databases in Oracle Data Guard?
Oracle Data Guard supports two types of standby databases:
- Physical Standby: A block-for-block copy of the primary database synchronized through Redo Apply.
- Logical Standby: Contains the same data as the primary but uses SQL Apply to update the database, allowing query and reporting activities.
What is the difference between Switchover and Failover in Data Guard?
- Switchover: A planned role reversal between the primary and standby databases with no data loss. It’s used for maintenance or testing.
- Failover: An unplanned role change when the primary database fails unexpectedly. It may result in minimal data loss depending on configuration.
What are the main protection modes in Oracle Data Guard?
Oracle Data Guard offers three protection modes:
- Maximum Protection: Zero data loss; transactions commit only when redo data is written to both primary and standby.
- Maximum Availability: Nearly zero data loss; similar to Maximum Protection but allows temporary disconnection.
- Maximum Performance: Prioritizes performance; redo data is asynchronously sent to standby databases.
How can you monitor and manage Data Guard configuration?
You can monitor and manage Data Guard using:
- Data Guard Broker (DGMGRL) – A command-line interface for configuration and management.
- Oracle Enterprise Manager (OEM Cloud Control) – A GUI tool for monitoring, configuring, and automating Data Guard tasks.
- SQL Queries and Views – Such as v$archive_dest_status, v$dataguard_status, and v$managed_standby.
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