Senior Oracle, PostgreSQL and bespoke web application consulting.
Practical expertise for business-critical systems: database performance, migrations, resilience, automation and custom applications
Two complementary service areas focused on databases and data-driven applications.
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.
Bespoke Web Applications
Tolan designs and builds custom web applications tailored to specific business needs, with a strong focus on data, usability, and long-term maintainability.
From internal tools to customer-facing systems, applications are built to replace manual processes, improve efficiency, and provide clear insight through structured data and reporting.
All development is carried out using modern, reliable technologies with a solid database foundation.
Practical work in production environments.
Reducing Licensing Costs by Simplifying an Oracle E-Business Suite Architecture
Reduced total cost of ownership by simplifying architecture
Higher Education | UK Russell Group University
Solaris, Oracle Database, Oracle E-Business Suite, Apache, Oracle Application Server
Sports Performance Analysis Web Application
Replaced paper and spreadsheets with a mobile data and analysis platform
Professional Sport | Golf
Django, Python, JavaScript, Bootstrap, nginx
Upgrading a 5TB PostgreSQL Environment Under Replication Constraints
Multi-stage upgrade completed under replication and storage constraints
Engineering & Industrial Services
PostgreSQL (12 → 15 → 17), Linux, repmgr, Barman
Direct, senior-level engagement from start to finish.
Tolan is an independent consultancy offering senior-level database and application expertise, delivered directly and without intermediaries.
Observations from real-world systems.
When One Table Is Better Than Ten Thousand
A practical example of how an apparently simple schema design decision could have introduced significant long-term complexity, and why experienced database input is often most valuable early in a project.
When “Unused” Indexes Aren’t Unused
A practical example of why large, apparently unused indexes cannot be evaluated safely in isolation, and why schema context matters when making optimisation decisions.
Choosing the Right Database: When SQLite is the Better Option
A practical example of selecting SQLite over more complex database systems, based on the actual requirements of the application rather than defaulting to more complex solutions.
Start with a focused conversation.
Discuss Oracle, PostgreSQL, migration planning, resilience, or a bespoke internal application.
Senior, independent expertise — delivered directly, without layers or handoffs.