MongoDB for Developers with Python Transcripts
Chapter: MongoDB's shell and native query syntax
Lecture: Concept: Connecting to MongoDB with the shell
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0:01
So let's review the main concepts around using the shell.
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Remember you just typed mongo enter
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and it will connect your local default, everything default port,
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default local host, no account etc,
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and once we're connected, we'll be in here,
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and it'll say connected to the server,
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what version of the shell, what version of the server,
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3.4.4 is the latest at the time of this recording,
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but maybe not at the time you are watching it,
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like all things that are server's, newer is better.
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Ok, so first thing that we might want to do is say what databases are here,
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and we do that with the show dbs command, we hit enter,
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and it shows you the various databases that are listed.
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Then next we want to activate one,
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so that we can issue commands to it through the db.collection
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or other high level operations,
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so we'd say in this case let's work with talk_python, so we'd use talk_python.
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And it'll say great, we switch to database talk_python,
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and in you're wondering you can always trying as you saw me do
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db enter and it will say talk_python, cool, and then,
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we could say well what collections exist in talk_python?
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This is actually pretty straightforward,
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the document design I think is pretty interesting
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but there's not many collections,
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so we have episodes, guest, reviews and then while developing it,
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I turned on profiling to see where it was slow and where it was fast,
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where I need indexes, we'll talk more about that near the end of the course.
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So we have these four collections, and now if we want to find an episode
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we'd say db.episodes.find and give it some search,
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or sort, or something to that effect.
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So this is how we get started and connect with the shell.
