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SQLLesson 1 of 35 minutes 20 secondsPlaceholder lesson

What a database is

Tables, rows and columns, explained with a spreadsheet you already understand.

Published

In this lesson

If you have ever used a spreadsheet, you already understand most of what a database is. This lesson connects what you know to the words you will see everywhere: tables, rows, columns and queries.

Try it yourself

Copy this, run it, then change one thing and run it again. That is how it sticks.

peek.sql
-- Show every row and column in the books table
SELECT * FROM books;