Databases & Data Engineering

The most impactful database decision is the schema itself, because a well-designed schema makes queries simple and fast, while a…

Discover how Orderlek’s native Enterprise PIM enables massive global brands to autonomously manage millions of complex SKUs across hundreds of…

Fetching a list and then a related record for each item individually turns one reasonable query into hundreds, and an…

The default isolation level of most databases is not the strongest one, and choosing a level is choosing which concurrency…

The only way to know a backup actually works is to restore it, and a backup that has never been…

An index on a low-cardinality column often gets ignored by the query planner, and that is usually the correct decision…

Adding an index per column is not an indexing strategy. Column order in composite indexes determines whether they get used…

Pipelines that append on every run cannot be safely retried. Making each run replaceable rather than additive is what makes…

Establishing a database connection is expensive, and opening a fresh one for every request adds that cost to every single…

Adding a column sounds harmless. Adding one with a non-null default on a large table can lock it for the…