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SQLBolt

Practice SQL queries in short browser lessons

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About SQLBolt

SQLBolt offers short SQL lessons with interactive exercises. Read an example, edit a query and see which rows come back. Its sequence is useful for learning selection, filtering and joins without installing a database first. Work through a few exercises until you can explain why the result changes when the condition or join is altered. SQL dialects and database behavior vary, so treat the lessons as a foundation and test the same ideas on the system you plan to use. A small practice database of your own is a good follow-up once the examples become familiar.

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