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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Showing 1 of 5 matching “Query”

Query

Data & Databases

A question asked of the database.

A request for data. Cheap when an index supports it, ruinous when it forces a scan of every row. Which questions you ask should be a design decision, not an accident.

See also Index, N+1, Full table scan