





| Feature / Area | SQL Server Standard | SQL Server Enterprise |
|---|---|---|
| CPU scalability | Up to 32 cores (maximum 4 CPU sockets) | Unlimited – up to operating system limits |
| Memory (Buffer Pool) | Up to 256 GB of memory for the data buffer | Unlimited – full use of available OS memory |
| Always On Availability Groups | Basic AG – single database, 2 replicas, no read scaling | Full AG – multiple databases, multiple replicas, read-only replicas |
| Online index operations | ![]() Not available – index operations block tables |
![]() Available – online index create/rebuild with no downtime |
| Intelligent Query Processing (IQP) | Limited – selected query optimizations only | Full IQP – batch mode on rowstore, adaptive joins, etc. |
| NUMA & memory optimization | ![]() No advanced NUMA optimizations |
![]() Full NUMA awareness and large-scale memory optimization |
| Advanced replication | ![]() No Peer-to-Peer or Oracle Publishing |
![]() Peer-to-Peer replication and Oracle Publishing supported |
| High Availability / Disaster Recovery | Basic HA/DR features (Failover, Basic AG) | Advanced HA/DR for mission-critical workloads |
| Resource Governor | ![]() Available – CPU and memory workload control |
![]() Available – no functional limitations |
| Azure integration / Azure Link | ![]() Supported |
![]() Supported (same functional scope as Standard) |
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