Editions and supported features of SQL Server 2017 on Linux
Applies to: 
SQL Server (all supported versions) - Linux
This article provides details of features supported by the various editions of SQL Server 2017 on Linux. For editions and supported features of SQL Server on Windows, see SQL Server 2017 - Windows.
Installation requirements vary based on your application needs. The different editions of SQL Server accommodate the unique performance, runtime, and price requirements of organizations and individuals. The SQL Server components that you install also depend on your specific requirements. The following sections help you understand how to make the best choice among the editions and components available in SQL Server.
For the latest release notes and what's new information, see the following:
For a list of SQL Server features not available on Linux, see Unsupported features and services.
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SQL Server editions
The following table describes the editions of SQL Server.
| SQL Server edition | Definition |
|---|---|
| Enterprise | The premium offering, SQL Server Enterprise edition delivers comprehensive high-end datacenter capabilities with blazing-fast performance enabling high service levels for mission-critical workloads. |
| Standard | SQL Server Standard edition delivers basic data management for departments and small organizations to run their applications and supports common development tools for on-premises and cloud - enabling effective database management with minimal IT resources. |
| Web | SQL Server Web edition is a low total-cost-of-ownership option for Web hosters and Web VAPs to provide scalability, affordability, and manageability capabilities for small to large scale Web properties. |
| Developer | SQL Server Developer edition lets developers build any kind of application on top of SQL Server. It includes all the functionality of Enterprise edition, but is licensed for use as a development and test system, not as a production server. SQL Server Developer is an ideal choice for people who build and test applications. |
| Express edition | Express edition is the entry-level, free database and is ideal for learning and building desktop and small server data-driven applications. It is the best choice for independent software vendors, developers, and hobbyists building client applications. If you need more advanced database features, SQL Server Express can be seamlessly upgraded to other higher end versions of SQL Server. |
Using SQL Server with client/server applications
You can install just the SQL Server client components on a computer that is running client/server applications that connect directly to an instance of SQL Server. A client components installation is also a good option if you administer an instance of SQL Server on a database server, or if you plan to develop SQL Server applications.
SQL Server components
SQL Server 2017 on Linux supports the SQL Server database engine. The following table describes the features in the database engine.
| Server components | Description |
|---|---|
| SQL Server Database Engine | SQL Server Database Engine includes the Database Engine, the core service for storing, processing, and securing data, replication, full-text search, tools for managing relational and XML data, and in database analytics integration. |
Developer, Enterprise Core, and Evaluation editions
For features supported by Developer, Enterprise Core, and Evaluation editions, see features listed for the SQL Server Enterprise edition in the following tables.
The Developer edition continues to support only one client for SQL Server Distributed Replay.
Scale limits
| Feature | Enterprise | Standard | Web | Express |
|---|---|---|---|---|
| Maximum compute capacity used by a single instance - SQL Server Database Engine1 | Operating system maximum | Limited to lesser of 4 sockets or 24 cores | Limited to lesser of 4 sockets or 16 cores | Limited to lesser of 1 socket or 4 cores |
| Maximum compute capacity used by a single instance - Analysis Services or Reporting Services | Operating system maximum | Limited to lesser of 4 sockets or 24 cores | Limited to lesser of 4 sockets or 16 cores | Limited to lesser of 1 socket or 4 cores |
| Maximum memory for buffer pool per instance of SQL Server Database Engine | Operating System Maximum | 128 GB | 64 GB | 1410 MB |
| Maximum capacity for buffer pool extension per instance of SQL Server Database Engine | 32 * (max server memory configuration) | 4 * (max server memory configuration) | N/A | N/A |
| Maximum memory for Columnstore segment cache per instance of SQL Server Database Engine | Unlimited memory | 32 GB | 16 GB | 352 MB |
| Maximum memory-optimized data size per database in SQL Server Database Engine | Unlimited memory | 32 GB | 16 GB | 352 MB |
| Maximum relational database size | 524 PB | 524 PB | 524 PB | 10 GB |
1 Enterprise edition with Server + Client Access License (CAL) based licensing (not available for new agreements) is limited to a maximum of 20 cores per SQL Server instance. There are no limits under the Core-based Server Licensing model. For more information, see Compute capacity limits by edition of SQL Server.
RDBMS high availability
| Feature | Enterprise | Standard | Web | Express |
|---|---|---|---|---|
| Log shipping | Yes | Yes | Yes | No |
| Backup compression | Yes | Yes | No | No |
| Database snapshot | Yes | No | No | No |
| Always On failover cluster instance1 | Yes | Yes | No | No |
| Always On availability groups2 | Yes | No | No | No |
| Basic availability groups 3 | No | Yes | No | No |
| Minimum replica commit availability group | Yes | Yes | No | No |
| Clusterless availability group | Yes | Yes | No | No |
| Online page and file restore | Yes | No | No | No |
| Online indexing | Yes | No | No | No |
| Resumable online index rebuilds | Yes | No | No | No |
| Online schema change | Yes | No | No | No |
| Fast recovery | Yes | No | No | No |
| Mirrored backups | Yes | No | No | No |
| Hot add memory and CPU | Yes | No | No | No |
| Encrypted backup | Yes | Yes | No | No |
| Hybrid backup to Azure (backup to URL) | Yes | Yes | No | No |
1 On Enterprise edition, the number of nodes is the operating system maximum. On Standard edition, there is support for two nodes.
2 On Enterprise edition, provides support for up to 8 secondary replicas - including 2 synchronous secondary replicas.
3 Standard edition supports basic availability groups. A basic availability group supports two replicas, with one database. For more information about basic availability groups, see Basic Availability Groups.
RDBMS scalability and performance
| Feature | Enterprise | Standard | Web | Express |
|---|---|---|---|---|
| Columnstore 1 | Yes | Yes | Yes | Yes |
| Large object binaries in clustered columnstore indexes | Yes | Yes | Yes | Yes |
| Online nonclustered columnstore index rebuild | Yes | No | No | No |
| In-Memory OLTP 1 | Yes | Yes | Yes | Yes |
| Persistent Main Memory | Yes | Yes | Yes | Yes |
| Table and index partitioning | Yes | Yes | Yes | Yes |
| Data compression | Yes | Yes | Yes | Yes |
| Resource Governor | Yes | No | No | No |
| Partitioned Table Parallelism | Yes | No | No | No |
| NUMA Aware and Large Page Memory and Buffer Array Allocation | Yes | No | No | No |
| IO Resource Governance | Yes | No | No | No |
| Delayed Durability | Yes | Yes | Yes | Yes |
| Automatic Tuning | Yes | No | No | No |
| Batch Mode Adaptive Joins | Yes | No | No | No |
| Batch Mode Memory Grant Feedback | Yes | No | No | No |
| Interleaved Execution for Multi-Statement Table Valued Functions | Yes | Yes | Yes | Yes |
| Bulk insert improvements | Yes | Yes | Yes | Yes |
1 In-Memory OLTP data size and Columnstore segment cache are limited to the amount of memory specified by edition in the Scale Limits section. The max degrees of parallelism is limited. The degrees of process parallelism (DOP) for an index build is limited to 2 DOP for the Standard edition and 1 DOP for the Web and Express editions. This refers to columnstore indexes created over disk-based tables and memory-optimized tables.
RDBMS security
| Feature | Enterprise | Standard | Web | Express |
|---|---|---|---|---|
| Row-level security | Yes | Yes | Yes | Yes |
| Always Encrypted | Yes | Yes | Yes | Yes |
| Dynamic data masking | Yes | Yes | Yes | Yes |
| Basic auditing | Yes | Yes | Yes | Yes |
| Fine grained auditing | Yes | Yes | Yes | Yes |
| Transparent database encryption | Yes | No | No | No |
| User-defined roles | Yes | Yes | Yes | Yes |
| Contained databases | Yes | Yes | Yes | Yes |
| Encryption for backups | Yes | Yes | No | No |
RDBMS manageability
| Feature | Enterprise | Standard | Web | Express |
|---|---|---|---|---|
| Dedicated admin connection | Yes | Yes | Yes | Yes with trace flag |
| PowerShell scripting support | Yes | Yes | Yes | Yes |
| Support for data-tier application component operations - extract, deploy, upgrade, delete | Yes | Yes | Yes | Yes |
| Policy automation (check on schedule and change) | Yes | Yes | Yes | No |
| Performance data collector | Yes | Yes | Yes | No |
| Standard performance reports | Yes | Yes | Yes | No |
| Plan guides and plan freezing for plan guides | Yes | Yes | Yes | No |
| Direct query of indexed views (using NOEXPAND hint) | Yes | Yes | Yes | Yes |
| Automatic indexed views maintenance | Yes | Yes | Yes | No |
| Distributed partitioned views | Yes | No | No | No |
| Parallel indexed operations | Yes | No | No | No |
| Automatic use of indexed view by query optimizer | Yes | No | No | No |
| Parallel consistency check | Yes | No | No | No |
| SQL Server Utility Control Point | Yes | No | No | No |
Programmability
| Feature | Enterprise | Standard | Web | Express |
|---|---|---|---|---|
| JSON | Yes | Yes | Yes | Yes |
| Query Store | Yes | Yes | Yes | Yes |
| Temporal | Yes | Yes | Yes | Yes |
| Native XML support | Yes | Yes | Yes | Yes |
| XML indexing | Yes | Yes | Yes | Yes |
| MERGE & UPSERT capabilities | Yes | Yes | Yes | Yes |
| Date and Time datatypes | Yes | Yes | Yes | Yes |
| Internationalization support | Yes | Yes | Yes | Yes |
| Full-text and semantic search | Yes | Yes | Yes | Yes |
| Specification of language in query | Yes | Yes | Yes | Yes |
| Service Broker (messaging) | Yes | Yes | No (Client only) | No (Client only) |
| Transact-SQL endpoints | Yes | Yes | Yes | No |
| Graph | Yes | Yes | Yes | Yes |
1 Scale out with multiple compute nodes requires a head node.
Integration Services
For info about the Integration Services (SSIS) features supported by the editions of SQL Server, see Integration Services features supported by the editions of SQL Server.
Spatial and location services
| Feature Name | Enterprise | Standard | Web | Express |
|---|---|---|---|---|
| Spatial indexes | Yes | Yes | Yes | Yes |
| Planar and geodetic datatypes | Yes | Yes | Yes | Yes |
| Advanced spatial libraries | Yes | Yes | Yes | Yes |
| Import/export of industry-standard spatial data formats | Yes | Yes | Yes | Yes |
Unsupported features & services
The following features and services are not available SQL Server 2017 on Linux. The support of these features will be increasingly enabled over time.
| Area | Unsupported feature or service |
|---|---|
| Database engine | Merge replication |
| Stretch DB | |
| PolyBase | |
| Distributed query with 3rd-party connections | |
| Linked Servers to data sources other than SQL Server | |
| System extended stored procedures (XP_CMDSHELL, etc.) | |
| Filetable, FILESTREAM | |
| CLR assemblies with the EXTERNAL_ACCESS or UNSAFE permission set | |
| Buffer Pool Extension | |
| Backup to URL - page blob 1 | |
| SQL Server Agent | Subsystems: CmdExec, PowerShell, Queue Reader, SSIS, SSAS, SSRS |
| Alerts | |
| Log Reader Agent | |
| Managed Backup | |
| High Availability | Database mirroring |
| Security | Extensible Key Management |
| AD Authentication for Linked Servers | |
| AD Authentication for Availability Group (AG) Endpoints | |
| Services | SQL Server Browser |
| SQL Server R services | |
| StreamInsight | |
| Analysis Services | |
| Reporting Services | |
| Data Quality Services | |
| Master Data Services |
1 Backup to URL is supported for block blobs, using the Shared Access Signature.
Next steps
Editions and supported features for SQL Server 2019 - Windows
Editions and supported features for SQL Server 2017 - Windows
Editions and supported features for SQL Server 2016 - Windows
Installation for SQL Server
Product Specifications for SQL Server
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