Azure Table storage is a key/value NoSQL database that allows you to store non-relational, structured, and semi-structured data that does not have to conform to a specific schema. It is ideal for storing huge amounts of data that is ready for simple and quick read/write operations, and is interfaced by the Table REST API using the OData protocol.

A table can contain one or many entities (rows), each up to 1 MB in size. The whole table cannot exceed a 100 TB limit. Each table entity can hold up to 252 columns. Rows in the same table can have different schemas, as opposed to relational database rows that should all comply under one strict schema.

Table storage is structured in a hierarchical relationship between storage accounts, tables, and entities. A storage account can have a zero or more non-related tables, each containing one or more entities.

The components of the service are: