Hands-On Azure for Developers

PartitionKey

Table Storage uses partitions to distribute, load, and handle requests. The number of partition keys within a table impacts the ability to balance them. It is possible to use a single partition per table, but in most cases, this is an invalid approach, which will lower the performance of your storage account. Partition keys are limited to 1 KB in size and have to be unique within a table (so once an entity is assigned a partition key, all others that use the same value will be stored in the same storage). They also have to be strings.