What This Is
SQL is the language we think in when designing data models, writing queries, optimising performance, and building reporting systems. Every application we build starts with a database schema, and the quality of that schema determines how well the application performs, scales, and adapts to changing requirements.
We work with SQL daily across two database engines — PostgreSQL as our primary database and MySQL for projects where it is the established choice. Our own platform runs a dual-database architecture: PostgreSQL for lead and contact data, MySQL for the primary application database. We write raw SQL for complex reporting queries, use Laravel’s query builder and Eloquent ORM for application logic, and build migrations that evolve schemas safely across deployments.
SQL expertise shows up in the parts of an application that users feel but never see — fast page loads because queries are indexed properly, reports that generate in seconds instead of minutes, and data models that accommodate new features without painful migrations.
When You Need This
SQL expertise is relevant when your project involves database design, query performance, or data-intensive reporting. Common scenarios:
- You are designing a new application and need a schema that models your business correctly from the start
- Your application has slow queries — pages that take too long to load, reports that time out, or dashboards that lag
- You need complex reporting queries that aggregate, join, and transform data across multiple tables
- A data migration requires transforming data from one schema to another without loss or corruption
- Your database has grown organically with no planned schema design and needs restructuring
- You are choosing between PostgreSQL and MySQL and need advice based on your specific requirements
How We Work
Database work starts with schema design — modelling the entities, relationships, and constraints that reflect your business domain. We design schemas that enforce data integrity at the database level (foreign keys, check constraints, unique indexes) rather than relying solely on application code to prevent bad data.
Query optimisation follows a systematic approach: identify slow queries through logging and profiling, analyse execution plans with EXPLAIN ANALYSE, add or adjust indexes, and restructure queries where the execution plan reveals inefficient access patterns. We optimise for the queries your application actually runs, not theoretical worst cases.
Migrations are managed through Laravel’s migration system, versioned and deployed alongside application code. Each migration is reversible where possible, and destructive changes (dropping columns, changing types) include data preservation steps. Schema changes are tested against production-scale data before deployment.
What You Get
- Schema design — normalised data models with proper relationships, constraints, and indexes
- Query optimisation — slow query identification, execution plan analysis, and index tuning
- Migration management — versioned schema changes deployed safely alongside application code
- Reporting queries — complex aggregations, joins, and transformations for business intelligence
- Database selection — informed recommendation between PostgreSQL and MySQL based on project requirements
- Performance auditing — analysis of existing database performance with specific improvement recommendations
- Data integrity — foreign keys, check constraints, and database-level validation
Technologies We Use
- PostgreSQL — primary database with JSONB, full-text search, CTEs, window functions, and PostGIS spatial queries
- MySQL — secondary database for projects where MySQL is established or required
- Laravel Migrations — versioned schema management with rollback support
- Eloquent ORM — object-relational mapping for application-level database interaction
- Query Builder — Laravel’s fluent query interface for complex queries without raw SQL overhead
- EXPLAIN ANALYSE — execution plan analysis for query optimisation
Related Systems
SQL underpins every application we build. PostgreSQL and MySQL are our database platforms. Laravel provides the ORM, migration system, and query builder. Reporting queries power dashboard and reporting system projects.
Talk to Us About Database Work
If your database needs design, optimisation, or migration work, get in touch and we will assess the current state and recommend specific improvements.
