SQL SERVER DBA, Linux and Azure: Differences B/W ENTERPRISE VS STANDARD EDITION FEATURES AND BENEFITS on SQL Server

Differences B/W ENTERPRISE VS STANDARD EDITION FEATURES AND BENEFITS on SQL Server

 Differences B/W ENTERPRISE VS STANDARD EDITION FEATURES AND BENEFITS on SQL Server 

Enterprise
The premium offering, SQL Server Enterprise edition delivers comprehensive high-end datacenter capabilities with blazing-fast performance, unlimited virtualization, and end-to-end business intelligence - enabling high service levels for mission-critical workloads and end user access to data insights.
Standard
SQL Server Standard edition delivers basic data management and business intelligence database for departments and small organizations to run their applications and supports common development tools for on-premise and cloud - enabling effective database management with minimal IT resources.


Feature
Enterprise
Standard
Maximum compute capacity used by a single instance - SQL Server Database Engine
Operating system maximum
Limited to lesser of 4 sockets or 24 cores
Maximum memory for buffer pool per instance of SQL Server Database Engine
Operating System Maximum
128 GB
Maximum memory-optimized data size per database in SQL Server Database Engine
Unlimited memory
32 GB2


RDBMS High Availability


Feature
Enterprise
Standard
Server core support
Yes
Yes
Database mirroring
Yes
Yes

Full safety only
Always On failover cluster instances
Yes

16
Yes

Support for 2 nodes
Always On availability groups
Yes-Up to 8 secondary replicas, including 2  synchronous secondary replicas
No
Basic availability groups 
No
Yes

Support for 2 nodes
Online page and file restore
Yes
No
Online indexing
Yes
No
Online schema change
Yes
No
Fast recovery
Yes
No
Mirrored backups
Yes
No
Hot add memory and CPU
Yes
No

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The primary data will be copied to secondary through network transaction basis. Group of database level technology. Windows Clustering setup is required without shared storage.

Ø  Combined HA / DR: - AlwaysOn provides both high availability and disaster recovery because you have live copies of your databases residing on several secondary servers. These are not just backups, but live, up-to-date copies of your databases that are usable in read-only mode.

Ø  Automatic or Manual Failover. You can set your AlwaysOn group to fail over automatically or manually. If you use automatic failover, you must also use synchronous data flow. If you are using asynchronous data flow, failover must be manual.

Ø  Enhanced Performance. Because you can offload some of these read-only and maintenance tasks to the secondary replicas, the performance of your primary replica will be enhanced. Because a lot of these operations can consume a lot of resources, offloading them will optimize the performance of your primary replica.

Ø  Failover of Multiple Databases. Databases in an AlwaysOn group will all fail over together. This is unlike database mirroring where the databases fail over individually. And it is also unlike failover clustering where the entire instance fails over.

Ø  Local or Shared Storage. Unlike failover clustering, shared storage is not a requirement with AlwaysOn. And by not using shared storage, you remove your SAN or other shared storage device as being a possible point of failure.

Ø  Automatic Page Repair. This feature is available with AlwaysOn.

Ø  Active Use of Secondaries. The databases on your secondary replicas are not just backup copies, but usable for read-only tasks. You can query the data, and do your reporting on the secondaries.   And you can direct your end-user connections to specific secondary replicas to spread out the workload.

You can also do some of your maintenance tasks on the secondary replicas: full and log backups, and integrity checks.

Ø  Availability Group Listener. We need to set up and allow for the applications to maintain connectivity to the SQL Server Databases after a failover.

A server name to which clients can connect in order to access a database in a primary or secondary replica of an Always On availability group. Availability group listeners direct incoming connections to the primary replica or to a read-only secondary replica.


RDBMS Scalability and Performance


Feature
Enterprise
Standard
Resource Governor
Yes
No
Partitioned Table Parallelism
Yes
No
NUMA Aware and Large Page Memory and Buffer Array Allocation
Yes
No 
IO Resource Governance
Yes
No
Read-Ahead
Yes
No
Advanced Scanning
Yes
No

RDBMS Security

Feature
Enterprise
Standard
Transparent database encryption
Yes
No
Extensible key management
Yes
No

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