Basic concepts

Let's look at the basic concepts of DynamoDB.

Tables

DynamoDB stores data in tables. A table contains multiple rows which are known as items. DynamoDB is not restricted to storing an amount of data in one table. While creating the DynamoDB table, we need to provide primary key attribute(s), which will identify the items uniquely:

Figure 6.1: Basic concepts

Items

Items are similar to relational database table rows or tuples. We can store any amount of items in one table. A table can contain only unique (single or composite) primary keys of each item...