| ms.service | ms.topic | ms.date |
|---|---|---|
azure-storage |
include |
08/23/2024 |
If you currently use Azure Table Storage, you gain the following benefits by moving to Azure Cosmos DB for Table:
| Feature | Azure Table Storage | Azure Cosmos DB for Table |
|---|---|---|
| Latency | Fast, but no upper bounds on latency. | Single-digit millisecond latency for reads and writes, backed with <10-ms latency reads and <15-ms latency writes at the 99th percentile, at any scale, anywhere in the world. |
| Throughput | Variable throughput model. Tables have a scalability limit of 20,000 operations per second. | Highly scalable with dedicated reserved throughput per table that's backed by SLAs. Accounts have no upper limit on throughput and support >10 million operations per second per table in provisioned throughput mode. |
| Global distribution | Single region with one optional readable secondary read region for high availability that supports automatic and manual account failover. | Turnkey global distribution from one to 30+ regions. Support for service-managed and manual failovers at any time, anywhere in the world. |
| Indexing | Only primary index on PartitionKey and RowKey. No secondary indexes. |
Automatic and complete indexing on all properties, no index management. |
| Query | Query execution uses index for primary key, and scans otherwise. | Queries can take advantage of automatic indexing on properties for fast query times. |
| Consistency | Strong within primary region. Eventual within secondary region. | Five well-defined consistency levels to trade off availability, latency, throughput, and consistency based on your application needs. |
| Pricing | Consumption-based. | Available in both consumption-based and provisioned capacity modes. |
| SLAs | 99.99% availability. | 99.99% availability SLA for all single region accounts and all multi-region accounts with relaxed consistency, and 99.999% read availability on all multi-region database accounts Industry-leading comprehensive SLAs on general availability. |