Database Reference
In-Depth Information
Chapter 1. Data Modeling with
DynamoDB
DynamoDB is a NoSQL database fully managed by Amazon, and it is made freely avail-
able (to a certain limit) as a web service. The meaning of
fully managed
is that all the patch
installation, updates, data backup, replication, and all other security measures are taken
care of by Amazon itself. Almost every NoSQL database has its own data model. A pro-
grammer or application designer always evaluates the strengths and weaknesses of a data-
base by looking at its data model. This is the reason why we have taken DynamoDB data
modeling for our primary discussion.
In this chapter we are going to discuss the basics of DynamoDB. The chapter is divided in-
to four sections:
• Discussing DynamoDB data model concepts, such as tables, items, and attributes
• Continuing to discuss primary key creation and usage
• Using secondary indexes
• The different data types in DynamoDB
