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Indexing · designlab

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Part 1 · Module 6

Indexing

How databases find rows without reading everything: B-trees, composite and covering indexes, and the specialized indexes behind search and maps.

0 of 4 lessons23 min

6.1Why indexes matterUp next6m
6.2Composite and covering indexes5m
6.3Beyond B-trees6m
6.4Indexes in practice6m
LabThe slow order historyFinish “Tiffin's schema” first25m

Practice what this module teaches

URL Shortener HLDTurn long URLs into short links. Keep redirects fast when a link goes viral.Foundation35 min Document Search Service HLDBuild a searchable index with versioned updates, secure hydration and rebuilds.Advanced50 min Nearby Places Search

HLD

Find nearby places using spatial candidates, exact distance filtering and bounded queries.

Intermediate45 min

Search Autocomplete HLDServe ranked prefix suggestions while rebuilding indexes without downtime.Intermediate45 min