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- [Instructor] Next up let's talk about

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NoSQL document databases,

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which are focused on storing
semi-structured data,

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typically in the form

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of JavaScript object notation documents

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or XML documents.

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MongoDB is the most popular
of the document databases

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and its name actually comes
from the word humongous,

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which as you can see,

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we put the word mongo in bold

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right in the middle of the word.

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Now because we're going to
be talking about MongoDB

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in a bit more detail
a few videos from now,

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we'll simply talk about the
example that we're going to do

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which is we're going to
harvest, if you will,

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10,000 live tweets and we'll
store them as they're arriving

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directly into a MongoDB database,

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not as the individual tweet texts

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but as the full JavaScript
object notation objects

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that we get back from the
Twitter streaming API.

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So we'll take 10,000
tweets on a specific topic,

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store them into the database,

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and then we'll analyze those tweets,

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and we're going to do some plotting

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on an interactive map as well

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as part of that example.

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Now some of the other
popular document databases

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as I mentioned in the preceding video,

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Amazon DynamoDB is a document database

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as well as being a key-value database.

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Microsoft's Azure Cosmos
DB and Apache's Couch DB

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are also document databases.

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And these are not all of the ones,

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these are just some of
the most popular ones

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that are out there.