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Oracle DBA

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Oracle DBA

Oracle DBA

Duration
45 Hours

Course Description

       An Oracle Database Administrator (DBA) is a specialized IT professional responsible for the management, maintenance, and security of Oracle databases. They ensure data integrity, performance, and accessibility while adhering to security protocols. 

Course Outline For Oracle DBA

1. Introduction to Oracle DBA and database concepts

  • Understanding Databases and RDBMS: Exploring the fundamentals of relational database management systems and their role in modern applications.
  • Oracle Database Architecture: Delving into the core architecture of the Oracle database, including the Oracle Instance (memory structures like SGA, PGA, background processes) and the Oracle Database (physical and logical storage structures).
  • Roles and Responsibilities of an Oracle DBA: Defining the duties of a DBA, including installation, configuration, security management, performance tuning, backup and recovery, and troubleshooting.
  • Oracle DBA Tools: Introduction to essential tools like SQL*Plus, SQL Developer, Oracle Enterprise Manager (OEM), and Recovery Manager (RMAN).
  • SQL and PL/SQL Fundamentals: Refresher or introduction to SQL for data manipulation and PL/SQL for programming stored procedures and functions. 

2. Oracle database installation and configuration

  • Planning the Installation: Understanding system requirements, optimal flexible architecture (OFA), and planning the installation.
  • Installing Oracle Software: Using the Oracle Universal Installer (OUI) to install Oracle Grid Infrastructure and Oracle Database software, including silent installations.
  • Creating an Oracle Database: Creating databases using the Database Configuration Assistant (DBCA) or manual methods.
  • Post-Installation Tasks: Managing initialization parameters (SPFILE, PFILE), password management, and diagnosing problems. 

3. Managing the Oracle instance and storage

  • Controlling the Oracle Database: Starting and stopping the database and its components.
  • Managing Memory Structures: Understanding and configuring memory components like SGA and PGA, and using Automatic Memory Management (AMM).
  • Managing Database Storage Structures: Working with tablespaces, data files, control files, redo log files, and archived log files.
  • Automatic Storage Management (ASM): Describing ASM architecture, setting up ASM instances and disk groups, and managing storage components. 

4. User security and networking

  • Administering User Security: Creating and managing user accounts, roles, privileges, and profiles.
  • Implementing Database Auditing: Enabling standard database auditing, specifying audit options, and reviewing audit trails.
  • Configuring the Oracle Network Environment: Creating and configuring listeners, Net Service aliases, and testing connectivity.
  • Data Concurrency: Managing data concurrency, understanding locking mechanisms, and resolving lock conflicts. 

5. Backup and recovery

  • Backup and Recovery Concepts: Understanding backup and recovery principles, types of failures, and recovery models (ARCHIVELOG, NOARCHIVELOG).
  • Performing Database Backups: Using user-managed and RMAN (Recovery Manager) backups, including full, incremental, and differential backups.
  • Performing Database Recovery: Recovering from various data losses, including control file, redo log file, and data file losses.
  • Flashback Technology: Utilizing Flashback Database, Flashback Table, and Flashback Query for logical corruption recovery and point-in-time recovery. 

6. Performance tuning and optimization

  • Performance Monitoring: Using tools like Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and advisory framework for performance analysis.
  • Tuning Activities: Optimizing memory components, using advisors, and analyzing dynamic performance views.
  • SQL Tuning: Identifying and optimizing high-cost SQL queries.
  • Index Management: Creating, managing, and rebuilding indexes for performance enhancement. 

7. High availability and advanced features

  • Oracle Data Guard: Configuring and managing standby databases for disaster recovery.
  • Oracle Real Application Clusters (RAC): Introduction to RAC for high availability and scalability.
  • Multitenant Architecture: Understanding CDB (Container Database) and PDB (Pluggable Database) architecture, creating and managing PDBs.
  • Data Migration: Using tools like Data Pump and SQL*Loader for data migration.
  • Database Upgrades and Patching: Planning and executing database upgrades and applying patches. 
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