Oracle and PostgreSQL Database Consulting
Tolan provides senior-level database consulting services covering Oracle and PostgreSQL environments, with a focus on performance, reliability, and practical, production-ready solutions.
Database issues often arise from decisions made early in a project. Engaging experienced input at the design or implementation stage can significantly reduce risk, avoid costly rework, and improve long-term performance and reliability.
With many years of experience in Oracle systems and hands-on work with modern PostgreSQL deployments, engagements are delivered directly and with a strong emphasis on real-world operational effectiveness.
Oracle Database Services
Extensive experience across multiple Oracle versions and Unix platforms, including legacy systems through to modern enterprise environments.
Core Experience
- Oracle 6 through to Oracle 19c
- E-Business Suite (R11 and R12)
- Multi-version environments with multiple Oracle Homes
- Cross-platform administration (Linux, HP-UX, Solaris, Ultrix, IBM Unix)
Key Services
- Performance tuning using Method-R principles
- SQL and execution plan optimisation
- Schema design and optimisation
- System-level performance analysis using custom tooling and scripts
- Database upgrades and migrations across versions
- Backup and recovery using RMAN
- Disaster recovery setup and support (Oracle Data Guard)
- Environment automation using bash scripting
- Custom database utilities and operational tooling
Approach
Performance and reliability issues are approached methodically, focusing on:
- identifying root causes rather than symptoms
- measuring response time and resource usage
- applying targeted, minimal-impact fixes
PostgreSQL Services
Practical experience in PostgreSQL environments, particularly in operational management, upgrades, and data warehouse systems.
Core Experience
- PostgreSQL 12 to 17
- Large-scale data environments (multi-terabyte systems)
- Linux-base deployments
Key Services
- PostgreSQL upgrades (including complex in-place upgrades)
- Planning, installation and configuration
- Schema design and optimisation
- Performance tuning and query optimisation
- Backup and recovery using Barman
- Replication and standby database setup (repmgr)
- Ongoing database management and support
Systems and Automation
Strong Unix/Linux background supporting database environments at the operating system level.
- Linux and Unix system administration
- Shell scripting (bash, ksh)
- Automation of database operations and maintenance tasks
- Custom tooling for monitoring, diagnostics, and cloning
Who this is for
Tolan’s database consulting services are suited to organisations that rely on their data and need experienced, hands-on support.
Typical clients include:
- Businesses running critical Oracle or PostgreSQL systems that require stability, performance and careful management.
- Organisations maintaining or modernising legacy database environements.
- Teams planning or undertaking database upgrades or migrations.
- Companies needing performance troubleshooting in production systems
- Businesses operating PostgreSQL or Oracle with few or no DBA resources.
- Organisations that require reliable backup, recovery and replication strategies for critical business systems.
Outcomes
Engagements are focused on delivering practical, measurable improvements to database environments.
Typical outcomes include:
- Improved performance
Faster queries, reduced response times, and more efficient resource usage - Increased reliability
Stable systems with robust backup, recovery, and failover strategies - Successful upgrades and migrations
Smooth transitions between database versions or platforms with minimal disruption - Better operational visibility
Clear understanding of system behaviour through analysis and monitoring - Reduced risk
Identification and resolution of underlying issues before they impact production - Simplified environments
Cleaner, more maintainable database and system configurations