Under the hood, Cosmos DB internally stores data in a format called Atom-Record-Sequence (ARS), which is highly optimized for partitioning and replication. Hence, no matter the NoSQL data type and API, the data ends up stored in this internal format.
Cosmos DB provides support for five different APIs with SDKs for many programming languages and platforms. Based on the data model we use with our database, we must use a specific API to interact with the Cosmos DB database service. The following table summarizes the five APIs that are available based on the four data models:
|
NoSQL database type |
Available APIs |
|
Key/value |
Table API |
|
Column, wide-column, or column-family |
Cassandra API ... |
