whichdb
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SAP HANA vs Microsoft SQL Server

SAP HANA: SAP's in-memory columnar HTAP database, the mandatory engine under S/4HANA. Microsoft SQL Server: Microsoft's flagship RDBMS: T-SQL, columnstore, Always On, and now native vectors and JSON.

key differences

  • Horizontal scaling is native in SAP HANA and manual in Microsoft SQL Server.
  • Only Microsoft SQL Server has change data capture, materialized views, time travel, online schema changes.

choose sap-hana for

  • +Running SAP S/4HANA and BW/4HANA
  • +Real-time operational reporting on ERP data
  • +Embedding analytics and ML (PAL/APL) in SAP business processes
  • +Grounding SAP Joule/AI scenarios with the vector and knowledge-graph engines

best at · HTAP, OLTP, OLAP

choose sql-server for

  • +Line-of-business apps in .NET shops
  • +ERP and CRM back ends (Dynamics, many ISV products)
  • +Operational reporting with columnstore indexes
  • +Departmental data marts feeding Power BI

best at · OLTP, HTAP, Warehouse

SAP HANASAP's in-memory columnar HTAP database, the mandatory engine under S/4HANA.
Microsoft SQL ServerMicrosoft's flagship RDBMS: T-SQL, columnstore, Always On, and now native vectors and JSON.
overview
Primary model
Relational
Relational
Also supports
Columnar / OLAP, Document, Graph, Spatial, Vector
Document, Spatial, Vector, Graph, XML
Type
Database engine
Database engine
Status
Active
Active
Developer
SAP SE
Microsoft
First release
2010
1989
Latest version
HANA Cloud QRC 2/2026 (Jun 2026)
2025 CU10 (17.0.5035.5) (Oct 22, 2026)
License
ProprietaryProprietary commercial license
ProprietaryMicrosoft commercial license
Free tier
✓
✓
popularity
WhichDB Score
39.7
71.0
Rank
#48
#8
GitHub stars
–
–
Stack Overflow questions
2K
336.2K
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Large (≤ 1 PB)
Horizontal scaling
Native
Manual
Multi-region
Read replicas
Read replicas
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
In memory, Distributed, Primary replica, Client server
Client server, Primary replica, Shared storage
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
✓
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
AWS, Azure, Google Cloud, Alibaba Cloud
Azure, AWS, Google Cloud
capabilities
Transactions
✓
✓
Joins
✓
✓
Secondary indexes
✓
✓
Full-text search
✓
✓
Vector search
✓
✓
Geospatial
✓
✓
JSON
✓
✓
Change data capture
—
✓
Triggers
✓
✓
Stored procedures
✓
✓
Materialized views
—
✓
TTL / expiry
—
—
Pub/Sub
—
—
Columnar storage
✓
✓
In-memory
✓
✓
Durable persistence
✓
✓
Compression
✓
✓
Encryption at rest
✓
✓
Role-based access
✓
✓
Time travel
—
✓
Branching
—
—
Online schema changes
—
✓
Streaming ingest
—
—
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
SQL, SQLScript, openCypher
T-SQL
Client languages
Java, Python, JavaScript, C#, Go, C++, ABAP
C#, Java, Python, JavaScript, Go, PHP, Rust, C
Best for
HTAP, OLTP, OLAP, Real-time analytics
OLTP, HTAP, Warehouse, Real-time analytics
Add more to this comparisonNot sure either fits? Try smart match

SAP HANA vs Microsoft SQL Server: FAQ

What is the difference between SAP HANA and Microsoft SQL Server?

SAP HANA: SAP's in-memory columnar HTAP database, the mandatory engine under S/4HANA. Microsoft SQL Server: Microsoft's flagship RDBMS: T-SQL, columnstore, Always On, and now native vectors and JSON. Horizontal scaling is native in SAP HANA and manual in Microsoft SQL Server. Only Microsoft SQL Server has change data capture, materialized views, time travel, online schema changes.

When should I choose SAP HANA over Microsoft SQL Server?

Choose SAP HANA for running SAP S/4HANA and BW/4HANA; real-time operational reporting on ERP data; and embedding analytics and ML (PAL/APL) in SAP business processes. Choose Microsoft SQL Server for line-of-business apps in .NET shops; ERP and CRM back ends (Dynamics, many ISV products); and operational reporting with columnstore indexes.

Is SAP HANA or Microsoft SQL Server more popular?

Microsoft SQL Server ranks #8 on the WhichDB Score (71.0/100) and SAP HANA ranks #48 (39.7/100). Popularity is not fit: check the requirements that matter for your project.

Are SAP HANA and Microsoft SQL Server open source?

No. SAP HANA is proprietary, closed-source software. No. Microsoft SQL Server is proprietary, closed-source software. License: Microsoft commercial license.