Build reliable database applications

Development

Good SQL development starts with the application contract and the access paths the workload will use. The work includes data modeling, query design, programmable objects, testing, source control, and deployment practices that keep changes reviewable.

Core focus

What this practice covers

Schema and data modeling

Design keys, relationships, constraints, data types, and naming around business rules and expected growth.

Queries and database code

Develop readable SQL, stored procedures, functions, views, and transactions with predictable behavior.

Delivery and review

Keep database changes in source control, test migrations, review plans, and promote changes through repeatable pipelines.

Typical work

What teams work on

Relational schema and indexing design
T-SQL and PostgreSQL query development
Stored procedure, function, and view implementation
Database unit and integration testing
Schema comparison and deployment scripting
Code review for correctness, security, and performance

Results

What good looks like

A schema that enforces important business rules
SQL that is understandable and testable
Repeatable database releases with visible drift
Clear ownership between application and database logic