Glossary

The words, without the shrug

Every term the courses use, defined in one line and then in a paragraph. Written to be read out of order.

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N+1

Data & Databases

One query for the list, then one per item.

Fetching 50 posts and then fetching each post’s author separately: 51 round trips. Invisible with test data, ruinous with real data. A database call inside a loop is the tell.