Amazon Relational Database Service(AWS RDS)
By Abhinay Durishetty
10 mins read
Introduction :
Before we start talking about RDS, it's important to understand what a database is. Essentially, we'll explore two types: relational databases and non-relational databases. It's like laying the foundation before we dive into the specifics of RDS.

What's a Database?
Think of a database as a big electronic cabinet. You can store things in it, quickly find them, and even change them.

Relational Databases:
It's like having different drawers in that cabinet. Each drawer, or 'table', holds different items. The cool part? The drawers can be linked.

How it Works?
Imagine an online store:

One drawer for Customers has things like CustomerID, Name, and Email.
Another drawer for Orders has OrderID, CustomerID, ProductID, and Date.
A third drawer for Products has ProductID, ProductName, and Price.
The IDs are like tags that connect the drawers.
Why This Way?
It's easy to find and link information with this setup.
Why Not Another Way?
Using a different setup could mix things up and cause confusion.

Non-Relational Databases:
Here, instead of drawers, think of sticky notes. Each note is different and doesn't need to follow a pattern.

How it Works?
For a blog:
One note for a Post has a Title, Content, Tags, and Comments.
The comments are part of the same note.

A note might look like this:

	"Title":"My Blog Post",
	"Content":"Some content here",
	{"User":"John","Comment":"Nice read!"},
	{"User":"Jane","Comment":"Thanks for this!"},

	#Blog Post 

	Title: "..."
	Contene: ".."
	Tags: ["..."]


	User: "..."

	Comments: "..."
Why This Way?
It's flexible and can store different types of information.
Why Not Another Way?
Being too flexible can sometimes lead to mixed-up data.

Now that you get the basics, RDS will be easy. RDS is like a helper for the big electronic cabinet, doing the hard work for you
What is RDS?
Amazon RDS, or Relational Database Service, is a cloud service provided by Amazon Web Services (AWS) designed to simplify the setup, operation, and scaling of a relational database. Think of it as a one-stop-shop for database management. Just as you can use EC2 instances for computing tasks, you can use RDS to manage databases like MySQL, PostgreSQL, SQL Server, and others. It’s like having a dedicated database expert at your service, ensuring that everything is up and running 24/7.
What is Aurora?
Amazon Aurora is a fully managed relational database service that's part of the Amazon RDS family, designed to turbo-charge your MySQL and PostgreSQL databases for both online transaction processing (OLTP) and online analytical processing (OLAP). Just like a luxury car is a step up from your everyday vehicle, Aurora offers the high-speed performance, availability, and reliability that you'd expect from a commercial database, but at a fraction of the cost.

The Aurora engine is compatible with both MySQL and PostgreSQL, which means you can easily migrate your existing databases to Aurora without having to change a lot of code. Imagine swapping out the engine of your car for a more powerful one without having to change the rest of the car; it’s that straightforward.

Aurora isn't just another database; it's designed to be your go-to solution for complex, high-availability applications that you can set up with just a few clicks.

What You'll Learn?
  • Understanding RDS:
    Get to know what Amazon RDS is all about and why it's an indispensable tool in cloud computing.
  • Security Protocols:
    Dive into RDS security options including security groups, encryption, and IAM roles.
  • RDS Benefits:
    Learn about the unique advantages of using RDS, such as easy administration, scalability, high availability, and robust security.
  • Backup and Restore:
    Find out how to safeguard your data with automated backups and easy restoration options.
  • Database Creation:
    Step-by-step instructions on creating, configuring, and connecting to an RDS database.
  • Connecting to RDS:
    Understand how to connect your applications or services securely to the RDS instance.
  • RDS Use Cases:
    Explore various applications of RDS, from web services to data analytics and more.
Why RDS?
1.Hassle-Free Database Management:
Imagine you want to cook dinner. Would you rather just cook or spend hours growing the ingredients first? With RDS, it's like having a kitchen where all the ingredients are already there. No need to be a database guru; RDS takes care of the tedious stuff like patching, backups, and failover for you.
2. Scale as You Grow:
Our managers are always ready to answer your questions. You can call us at the weekends and at night.
3. Go Global in Seconds:
Imagine if you could offer your special spaghetti recipe to people worldwide instantly. That’s exactly what RDS does for your data. You can replicate your database across multiple regions to achieve low-latency access and high availability. It’s like having your kitchen in every city in the world.
4. Unmatched Security:
When it comes to your recipe secrets, you'd want them in a safe, right? RDS offers multiple layers of security including network isolation, encryption, and controlled access via IAM roles. It's as if you have a vault for your secret sauce.
5.Pay Only for What You Use:
No need to hire a full-time chef if you only need to cook once a week! With RDS, you pay for what you need. Whether you need a database for a short project or a long-term operation, RDS has flexible pricing models to suit your needs.
6. Effortless Backups:
Dropped your lasagna? No worries, you have a spare! RDS provides automated backups, database snapshots, and automated software patching. It's like having a safety net for your data.
7. Ready When You Are:
Setting up a database can be like preparing a 5-course meal, complex and time-consuming. But with RDS, it's more like ordering fast food: quick, simple, and satisfies your needs without the hours of labor.
What's the Deal with Aurora?
Turbo-Charged Performance:
Imagine your basic kitchen blender, but now imagine it's been replaced with a high-speed commercial blender that can make ten smoothies in the time it takes the basic one to make one. Aurora is like that high-speed blender for your database needs, delivering up to five times the performance of a standard MySQL database and twice the performance of a standard PostgreSQL.

Seamless Scalability:
Imagine your dinner party turned into a block party. No need to worry about not having enough food or space. Aurora automatically divides your database into 10GB segments spread across many servers. It's like having an expandable table and an endless supply of dishes.

Fault-Tolerant and Highly Available:
Aurora is built to automatically divide data across multiple zones and continuously backup your data to Amazon S3. Imagine if your kitchen had self-healing tiles and automatically restock your fridge. In Aurora, if something goes wrong, it’s designed to self-repair and keep going.

SQL and NoSQL Friendly:
Whether you like cooking Italian or Thai, your kitchen should be versatile. Similarly, Aurora provides the best of both worlds: it's compatible with MySQL and PostgreSQL and also offers easy ways to integrate with NoSQL databases. It's like having a multi-cuisine kitchen at your disposal.

Aurora aims to provide the high-end performance of commercial databases at 1/10th the cost. Imagine getting Michelin-star quality food at fast-food prices. Who wouldn’t want that?

Global Databases:
Need to serve breakfast in New York and dinner in Tokyo? Aurora Global Databases can replicate your data globally with latency as low as 1 second. It's like having a chain of restaurants serving your signature dish worldwide in near-real-time.