Google Cloud Spanner vs IBM Db2
Google Cloud Spanner
cloud.google.com
IBM Db2
ibm.comSide by side
| Figure | Google Cloud Spanner | IBM Db2 |
|---|---|---|
| Price from | — | $630/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 7 | 7 |
| Spec score · Distributed SQL Databases | 8.3 (#10) | 8.6 (#7) |
| Spec score · Database Software | 8.4 (#32) | 8.6 (#22) |
| Spec score · Transaction Data Store Software | 8.1 (#18) | 8.4 (#12) |
| Availability | Google says Spanner delivers up to 99.999% availability and offers single-region, dual-region, and multi-region configurations. | IBM says Db2 pureScale supports continuous availability on premises or in the cloud and that Db2 integrates with Pacemaker. |
| Free plan | No | Yes |
| Integrations | Google documents integrations with Cloud Run, Dataflow, Cloud Storage, Compute Engine, GKE, Gemini Enterprise Agent Platform, and Looker. | IBM documents connections through drivers and integrations with DataStage, Segment, Cognos Analytics, Looker, Tableau, Excel, SPSS Statistics, SAS, and R. |
| Security | Spanner provides encryption in transit, identity and access controls, and security controls under a shared responsibility model. | IBM describes access controls, encryption for data in motion and at rest, behavior monitoring, and data masking features for Db2. |
| Support | Google lists support packages, Stack Overflow, online help communities, and bug or feature requests as support options for Spanner instances. | The pricing page lists Community Support for Db2 AI Community and Enterprise Support for Db2 AI Standard and AI Advanced. |
Plans
Google Cloud Spanner
- StandardPrice not published
- EnterprisePrice not published
- Enterprise PlusPrice not published
- Spanner free trial instanceFree
- Standard edition compute$0.03 a month
- Enterprise edition compute$0.04 a month
- Enterprise Plus edition compute$0.06 a month
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
Google Cloud Spanner
Google Cloud Spanner is a paid database service combining relational, graph, key-value, and search capabilities. It provides Strong-ACID transactions ordered with TrueTime, horizontal read and write scaling, automatic sharding, and geo-partitioning. Configurations include single-region, dual-region, and multi-region deployments, with Google describing availability up to 99.999%. Spanner Graph, vector search, and built-in full-text search are included. A columnar engine supports ad hoc analytics on live data, and BigQuery integration enables federated queries. Spanner Omni is downloadable for on-premises, cross-cloud, or laptop deployment. Client libraries cover C++, C#, Go, Java, Node.js, PHP, Python, and Ruby. Integrations include Cloud Run, Dataflow, Cloud Storage, Compute Engine, GKE, Gemini Enterprise Agent Platform, and Looker. Security includes encryption in transit and identity and access controls. PostgreSQL compatibility, horizontal scaling, multi-region deployment, geo-partitioning, and HTAP workloads are listed.
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.