Partitin Key In Azure Cosmos DB

In Azure Cosmos DB, is a partition key always required?

Partition Key is not mandatory for containers below 10 GB of data, but is highly recommended for performance and scalability

How do I choose a Partition Key?

The partition key should be chosen based on the key item in a document to ensure even distribution of data across partitions and for maintaining high performance and scalability.

Can I change the Partition Key?

Partition key is added when a new container is created and the partition key can not be changed. If the partition key need to be changed then a new container has to be created with the desired partition key and all data need to be migrated to this new container.

Is there a limit on the size of a logical partition?

Logical Partition size in Azure Cosmos DB is limited to 20 GB. So, a single partition should not exceed this size to maintain performance.

How does partition key selection affect query performance?

Partition key enhances query performance and so queries with partition key in the filter perform better as it is routed directly to the appropriate partition and improves the overall throughput.

What is Partition Key In Azure Cosmos DB

The Partition Key in Azure Cosmos DB is an important factor for distributing data efficiently across the database’s physical partitions. The partition key plays an important role in storing and accessing data and the partition key makes the filtering data more efficient and optimized. In this article we will discuss the partition key in Azure Cosmos DB, how it is created, and how it is used in data storage and data retrieval.