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In the last module we had a detailed look at how you can get data into the database.

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Now often, that is only useful if you have the means to get data out of the database

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and that is exactly what this module is about,

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it's about reading data that is in your database.

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Now we already used find quite a bit in this module but find as we used it always gave us back all the

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data essentially. You can of course filter for specific documents, you're not limited to getting all the

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data all the time and you can also transform the documents you get back to some extent.

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Additionally, we'll talk about that cursor thing again which I touched on earlier in this course, so in

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detail we'll have a look at methods, filters and operators, what all of that is and how it works together.

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We'll then have a look at query selectors,

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so findOne and find and how we work with filters there and add projection operators which will help us

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with well transforming the data we get back

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you could say. This is in a nutshell what we'll do in this module and for this module, we'll use the

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dataset or at least we'll start with the dataset we imported at the end of last module,

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so make sure you watch that video to see how that dataset, the movies dataset there

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got into the database, we used mongo import for that and we did it at the end of the insert module.

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If you know how to use mongo import, you'll find that dataset attached to this video again,

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you don't need to re-import if you already did it in the last module but if you skipped that module

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but you know how to import data, the dataset is attached.

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So with that let's dive into reading data.