Slick Tables in Scala for Database Mapping and Queries

Integrating databases with backend services often leads to complex, runtime errors that are hard to debug. By leveraging the type safety of Scala and the Slick library, you can catch database mapping errors at compile time and build highly reliable applications. This text-only course guides you through the process of connecting Scala applications to relational databases with confidence. You will transition from writing raw SQL queries to constructing elegant, compile-time safe database operations. What you will learn: Understand the foundational architecture of Slick and how it bridges Scala with relational databases; Map Scala classes to database tables using lifted embedding and define schemas cleanly; Configure database connections and manage PostgreSQL constraints like primary keys, foreign keys, and indexes; Construct type-safe queries, filters, and joins without writing raw SQL strings; Handle asynchronous database transactions safely using modern Scala concurrency patterns; Apply best practices for structured logging and basic error handling in database operations. You will begin by exploring the core concepts of functional relational mapping and setting up a clean database configuration. From there, you will progress through defining schemas, handling constraints, and writing reusable queries, concluding with practical patterns for managing database transactions. This course is designed for backend developers and Scala beginners who want to learn type-safe database access. No prior experience with Slick is required, though a basic understanding of Scala syntax is helpful. Start building reliable, type-safe database layers today.