What is table storage in Windows Azure?

The Windows Azure Table storage service organizes and stores a large amount of data. Tables in Windows Azure are ideal for storing structured, non-relational data.
Table: A table is a grouping of objects. Tables do not adhere to an elemental pattern, which means that a single table can contain substances with a variety of property combinations. Multiple tables can be found in a single record.

Entity: An entity, like a database record, is a collection of properties. A single entity can be 1 MB in size.

Properties: A name-value pair is referred to as a property. To hold data, each object can have up to 252 attributes. A segment key, a row key, and a timestamp are all determined by three system attributes for each object.

DynamoDB. DynamoDB allows you to either use a document-based data model or key/value store. For document-based alternative in Azure, see DocumentDB.

With that being said, AWS DynamoDB and Azure Tables simply share the key/value store characteristic. That is, they are inherently very different databases, with different pricing structures and very different technical capabilities.