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Advanced DBMS · Module 10 of 10

Security, big data and trends

Secure databases and explore modern directions.

📖 Key ideas

  1. Database security: authentication, authorisation (GRANT/REVOKE), encryption, auditing.
  2. Prevent SQL injection with parameterised queries.
  3. Big data systems: Hadoop, Spark, data lakes.
  4. Cloud databases: managed, serverless, autoscaling.
  5. Trends: vector databases for AI, multi-model databases.
💡 Real-life example: Database security is a bank vault with access cards, CCTV and sealed boxes.
GRANTGives privileges
AuditingRecording database activity
Vector databaseStores embeddings for similarity search
Serverless databaseScales automatically without managing servers