Azure Database for PostgreSQL vs IBM Db2
Azure Database for PostgreSQL
azure.microsoft.com
IBM Db2
ibm.comSide by side
| Figure | Azure Database for PostgreSQL | IBM Db2 |
|---|---|---|
| Price from | — | $630/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| Linux | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 7 |
| Spec score · Spatial Databases | 6.3 (#31) | 8.5 (#10) |
| Spec score · Relational Databases | 6.2 (#33) | 8.4 (#10) |
Plans
Azure Database for PostgreSQL
- Burstable B1msPriced on request
IBM Db2
- FreeFree
- Performance$630 a month
- Db2 AI CommunityFree
- Db2 Database SaaS FreeFree
- Db2 Database SaaS Performance$630 a month
- Db2 AI AdvancedPriced on request
- Db2 AI StandardPriced on request
In their own words
Azure Database for PostgreSQL
Azure Database for PostgreSQL has no write-up on Specifiction yet; its figures are above.
IBM Db2
IBM Db2 is a database for low-latency transactions, real-time analytics, and mission-critical workloads. It supports transactional, analytical, and operational work on the same database and can feed Db2 Warehouse and watsonx.data. AI-powered query optimization uses historical query patterns to adjust execution plans and automate tuning. Db2 12.1.2.0 adds a VECTOR type and SQL vector-distance queries for semantic search, retrieval-augmented generation, and recommendation systems. Db2 pureScale supports continuous availability on premises or in the cloud, with Pacemaker integration. Security features include access controls, encryption in transit and at rest, behavior monitoring, and data masking. IBM documents integrations with DataStage, Segment, Cognos Analytics, Looker, Tableau, Excel, SPSS Statistics, SAS, and R. Supported deployments include self-hosting and Amazon RDS for Db2. Free plans are available; Performance is listed at $630 a month, billed hourly.