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Database Administration (Oracle, MySQL, PostgreSQL)
📘 Course Overview 

 

This program equips non-IT professionals—such as BPO/KPO staff—to confidently take on Database Administrator (DBA) roles across Oracle, MySQL, and PostgreSQL. It blends essential concepts, real-world issue handling, and environment simulation aligned with L1/L2 DBA expectations (capacity planning, backup/recovery, performance tuning, security, and troubleshooting).

 

🧩 Course Modules

 

Module 1: Database Fundamentals & Roles

 

  • What is a DBA? (system DBA vs development DBA vs application DBA)
  • High-level comparison of Oracle, MySQL, PostgreSQL
  • Client-server architecture, relational table design, ER diagrams
Module 2: SQL Refresher & Query Optimization

 

  • DML/DDL: SELECT, INSERT, UPDATE, DELETE, CREATE, ALTER, DROP
  • Joins, subqueries, CTEs, window functions, indexing basics
  • Query execution plans and optimization techniques
Module 3: MySQL & PostgreSQL Administration (Hands-on)

 

  • Installation, configuration, users, roles, privileges
  • Backup & restore (mysqldump, pg_dump, streaming replication basics)
  • Monitoring performance and logs; tuning key parameters
  • Scaling, high availability, replication strategies
Module 4: Oracle Administration (Entry to Intermediate)

 

  • Oracle architecture, instance control (startup/shutdown)
  • Storage structures: tablespaces, ASM, redo/undo logs
  • User security: roles, password profiles, auditing
  • Backup/recovery via RMAN, Flashback DB, Data Pump
Module 5: Production Maintenance & Performance Tuning

 

  • Capacity planning, alerting, growth forecasting
  • Monitoring tools, performance tuning, analyzing waits and locks
  • Backup best practices and disaster recovery strategies
  • Automation with scripts, scheduling, cron, SQL jobs
Module 6: Security, High Availability & Migration

 

  • Access control, roles, privileges, encryption
  • HA solutions: replication (MySQL/PostgreSQL) and Oracle RAC/Active Data Guard
  • Migration between platforms (e.g., Oracle → PostgreSQL)
🔧 Bonus Topics & Career Prep

 

  • DIY labs: perform migrations, restore incidents, write recovery scripts
  • DevOps intersections: database in containers (Docker/Kubernetes), CI/CD integration
  • Resume and interview prep, focusing on DBA role expectations
  • Soft skills: runbooks, SOPs, KB documentation, on-call handovers

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