DB Fiddle
Try table designs and queries with fictional sample data.
Browser SQL playground; never paste private or personal data.
Explore toolLesson 3 of 3 · 9 min
CRUD covers the four basic data operations every app needs.
INSERT adds rows, SELECT reads, UPDATE changes and DELETE removes — always with care.
Match each CRUD letter to its SQL keyword from memory.
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Try table designs and queries with fictional sample data.
Browser SQL playground; never paste private or personal data.
Explore tool