SQL
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Learn SQL in 4 Minutes
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Learn SQL in Under 4 Minutes
This tutorial assumes you have a database set up and ready to go, and you know how to write queries against it. This tutorial also assumes you already have a strong handle on programming concepts. This will go fast.
Ready? Go!
SQL (pronounced "sequel") is merely a language used to interact with a database. Alone, it doesn't have much practical purpose but is usually used in conjunction with another language. Such as PHP. You can, however, write raw queries against a database for your own amusement. This is handy for testing or learning purposes.