Introduction to RDS
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Video Transcription
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>> Hey everyone and welcome back.
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In this lecture, we're going to talk about RDS,
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which is the relational database service.
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In this lecture, learning objectives are going to
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be to define RDS and explain
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the key difference or
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the key offerings for the RDS and how it's different
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from the NoSQL offering with DynamoDB.
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RDS stands for relational database service.
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It is a another compute database offering offered by AWS.
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Very commonly used.
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This is going to be where we put our PostgreSQL,
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MySQL, Microsoft SQL, Oracle,
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SQL server, and also
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the proprietary and very well advertised Amazon Aurora.
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These are all relational database offerings
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that you can leverage within RDS.
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Now I will quickly take a pause here.
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Amazon Aurora is a good moneymaker
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and bread and butter for Amazon.
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I have nothing against it.
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It is a very good service.
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One tidbit and little trick that you need to know
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is that if Amazon Aurora is an answer,
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if it's an option for you to answer any of the questions,
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there's a very good chance that it's very well could
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be the correct answer to the question.
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Just be mindful of that,
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not telling you that it is
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always the correct answer because that
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would be terribly wrong and I wouldn't
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want to lead you astray.
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But Amazon likes their little baby,
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they like Aurora and so just be mindful of that.
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They do tend to lean towards
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their own services over
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their competitors and other vendors,
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so just keep that in mind.
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[LAUGHTER] RDS runs on the EC2 infrastructure,
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so the same things that we use
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for virtualization for EC2 instances,
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same idea for RDS.
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The hardware selection is going to be
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optimized for databases
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though so it's a little different.
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It supports read replicas and multi-AZs.
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You're going to want to make sure
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you understand the differences.
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Security is offered through identity access management.
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Security groups, KMS, otherwise known as
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key managed service, and SSL.
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You get backups, snapshots,
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and point-in-time restores and you
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can schedule your maintenance for your servers as well.
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In addition, you can monitor with
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CloudWatch. That is basically it.
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Now, I did not have a slide on the differences
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between DynamoDB and relational database RDS.
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But like I told you before,
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there are two separate types of databases.
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You have NoSQL, which is
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a very common use
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in software development and then you have RDS,
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which is used for both software developments and
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IT operations and security,
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and data analytics and machine learning.
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They all have their pros and cons.
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MongoDB is a good substitute
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for or a good example of an alternative to DynamoDB.
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If we're looking at industry leaders,
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Mongo is a popular one
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and so DynamoDB would be like the flavor from AWS.
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If you're looking for
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something to help you understand the differences,
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those were some things that I leveraged and that
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helped me distinguish the two
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apart and making sure
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that you understand a little bit
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of the characteristics of
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NoSQL can also be a helpful distinction when you're
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reviewing scenario-based questions for RDS and DynamoDB.
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Make sure to browse through
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the documentation a little bit
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and get familiar with this.
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But if you do already know what we're talking about here,
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then you're totally fine.
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You should be able to understand
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the two differences here and go forward.
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That is it for this lecture.
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I'll go ahead and jump onto API gateways now,
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so I'll see you in the next lecture.
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