Region

AccessKey

SecretKey

aws_go.tar.gz

AWS_DEFAULT_REGION

AWS_ACCESS_KEY_ID

AWS_SECRET_ACCESS_KEY

mlxtend

GO_in_spa

This course provides in-depth knowledge of DynamoDB, which is a fast NoSQL database service provided by Amazon Web Services (AWS). With the rapid adoption of IoT devices and the prevalence of machine learning applications, the storage of information and the speed of interaction becomes critical. DyanmoDB is a storage system that can handle millions of transactions per second without affecting user experience. 

In this course, you’ll start by learning about the internal workings of DyanmoDb. Next, you’ll learn how DynamoDB scales the capacity based on the load. You’ll also learn to interact with DynamoDB and use the DynamoDB stream. And finally, you’ll learn about AWS services like DAX and Cloudwatch.

By the end of the course, you’ll have a working knowledge of DynamoDB, and you’ll be able to integrate DynamoDB with your applications.

DynamoDB: From Basic To Advance

Achieving good availability always brings in some challenges. One of them, and probably the most important one, is consistency. When a system is **consistent**, it means that the system guarantees that the requested information is always returned in its most updated form. 


## Understanding consistency
As mentioned before, consistency is all about maintaining the latest version of data in storage. When someone queries that information, they are going to get the latest version. To do that, it is important to understand the concept of transactions and ACID.

Let’s imagine that there is a component that executes transfers. It interacts with a relational database where there are two tables called debits and credits:



Achieving good availability always brings in some challenges. One of them, and probably the most important one, is consistency. When a system is **consistent**, it means that the system guarantees that the requested information is always returned in its most updated form. 


# Understanding consistency
As mentioned before, consistency is all about maintaining the latest version of data in storage. When someone queries that information, they are going to get the latest version. To do that, it is important to understand the concept of transactions and ACID.

Let’s imagine that there is a component that executes transfers. It interacts with a relational database where there are two tables called debits and credits:



Learn what consistency means in the database world.

Introduction

Getting Started With DynamoDB

Internal Working of DynamoDB

Tolerating Peaks of Requests

Interacting With DynamoDB

Integration With External Services

DynamoDB: From Basic to Advance

What is Consistency in Databases?

Understanding consistency