SQL and PostgreSQL fundamentals: SQL syntax and querying - PostgreSQL data types, tables, indexes, and constraints - Understanding of PostgreSQL architecture and internals
Database design and modeling: - Data modeling concepts (entity-relationship diagrams, normalization) - Database schema design and optimization
Performance tuning and optimization: - Query optimization techniques - Indexing strategies - Understanding of execution plans and query analysis
Backup and recovery: - Backup and recovery concepts (full, incremental, differential) - Understanding of PostgreSQL backup tools (pg_dump, pg_basebackup)
Security and access control: - User management and authentication - Role-based access control (RBAC) - Understanding of PostgreSQL security features (SSL, encryption)
Replication and high availability: - Understanding of replication concepts (master-slave, multi-master) - Setting up and managing replication - High-availability solutions (failover, load balancing)
Monitoring and troubleshooting: - Understanding of PostgreSQL logs and monitoring tools (pg_stat_statements) - Troubleshooting techniques for performance, connectivity, and data issues
Scripting and automation: - Familiarity with scripting languages (Bash, Python, Perl) - Automating tasks using cron jobs, scripts, and tools (pg_agent)