I don't have a database connection

I am 17 just learning sql in schooland hence I downloaded sql developer.
I am afraid i don't have a database connection.
cud anyone explain to me what it is & if possible give me instructions on how to establish one.

The wonderful thing about these forums is there is a search facility, so that's a great place to start. Welcome to the world of databases and SQL! There is lots of experience in these forums and you can learn a lot.You shouyld search tem whenever you have a question. Take a look at my response to another beginner in this thread.
am a beginner
The tutorial I mention helps you create a connection.
Have fun
Sue

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