data-access
When your API is fast but your database calls aren't — repository pattern, query optimization, N+1 prevention.
3 skills tagged db · domain axis.
When your API is fast but your database calls aren't — repository pattern, query optimization, N+1 prevention.
When data modeling decisions will outlast the code — schema design, normalization, migration planning, indexing.
When queries are the bottleneck — index analysis, query plan optimization, connection pooling.