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DBMS > Microsoft SQL Server vs. Oracle vs. Postgres-XL vs. ScyllaDB

System Properties Comparison Microsoft SQL Server vs. Oracle vs. Postgres-XL vs. ScyllaDB

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Editorial information provided by DB-Engines
NameMicrosoft SQL Server  Xexclude from comparisonOracle  Xexclude from comparisonPostgres-XL  Xexclude from comparisonScyllaDB  Xexclude from comparison
DescriptionMicrosofts flagship relational DBMSWidely used RDBMSBased on PostgreSQL enhanced with MPP and write-scale-out cluster featuresCassandra and DynamoDB compatible wide column store
Primary database modelRelational DBMSRelational DBMSRelational DBMSKey-value store
Wide column store
Secondary database modelsDocument store
Graph DBMS
Spatial DBMS
Document store
Graph DBMS infowith Oracle Spatial and Graph
RDF store infowith Oracle Spatial and Graph
Spatial DBMS infowith Oracle Spatial and Graph
Document store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score970.61
Rank#3  Overall
#3  Relational DBMS
Score1270.35
Rank#1  Overall
#1  Relational DBMS
Score0.69
Rank#209  Overall
#103  Relational DBMS
Score3.70
Rank#90  Overall
#15  Key-value stores
#7  Wide column stores
Websitewww.microsoft.com/­en-us/­sql-serverwww.oracle.com/­databasewww.postgres-xl.orgwww.scylladb.com
Technical documentationdocs.microsoft.com/­en-US/­sql/­sql-serverdocs.oracle.com/­en/­databasewww.postgres-xl.org/­documentationdocs.scylladb.com
DeveloperMicrosoftOracleScyllaDB
Initial release198919802014 infosince 2012, originally named StormDB2015
Current releaseSQL Server 2019, November 201919c, February 201910 R1, October 2018Scylla Open Source 4.5, October 2021
License infoCommercial or Open Sourcecommercial inforestricted free version is availablecommercial inforestricted free version is availableOpen Source infoMozilla public licenseOpen Source infoOpen Source (AGPL), commercial license available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Scylla Cloud: Create real-time applications that run at global scale with Scylla Cloud, the industry’s most powerful NoSQL DBaaS
Implementation languageC++C and C++CC++
Server operating systemsLinux
Windows
AIX
HP-UX
Linux
OS X
Solaris
Windows
z/OS
Linux
macOS
Linux
Data schemeyesyes infoSchemaless in JSON and XML columnsyesschema-free
Typing infopredefined data types such as float or dateyesyesyesyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.yesyesyes infoXML type, but no XML query functionalityno
Secondary indexesyesyesyesyes infocluster global secondary indices
SQL infoSupport of SQLyesyes infowith proprietary extensionsyes infodistributed, parallel query executionSQL-like DML and DDL statements (CQL)
APIs and other access methodsADO.NET
JDBC
ODBC
OLE DB
Tabular Data Stream (TDS)
JDBC
ODBC
ODP.NET
Oracle Call Interface (OCI)
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Proprietary protocol (CQL) infocompatible with CQL (Cassandra Query Language, an SQL-like language)
RESTful HTTP API (DynamoDB compatible)
Thrift
Supported programming languagesC#
C++
Delphi
Go
Java
JavaScript (Node.js)
PHP
Python
R
Ruby
Visual Basic
C
C#
C++
Clojure
Cobol
Delphi
Eiffel
Erlang
Fortran
Groovy
Haskell
Java
JavaScript
Lisp
Objective C
OCaml
Perl
PHP
Python
R
Ruby
Scala
Tcl
Visual Basic
.Net
C
C++
Delphi
Erlang
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
For CQL interface: C#, C++, Clojure, Erlang, Go, Haskell, Java, JavaScript, Node.js, Perl, PHP, Python, Ruby, Rust, Scala
For DynamoDB interface: .Net, ColdFusion, Erlang, Groovy, Java, JavaScript, Perl, PHP, Python, Ruby
Server-side scripts infoStored proceduresTransact SQL, .NET languages, R, Python and (with SQL Server 2019) JavaPL/SQL infoalso stored procedures in Java possibleuser defined functionsyes, Lua
Triggersyesyesyesno
Partitioning methods infoMethods for storing different data on different nodestables can be distributed across several files (horizontal partitioning); sharding through federationSharding, horizontal partitioninghorizontal partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes, but depending on the SQL-Server EditionMulti-source replication
Source-replica replication
selectable replication factor infoRepresentation of geographical distribution of servers is possible
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono infocan be realized in PL/SQLnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyEventual Consistency
Tunable Consistency infocan be individually decided for each write operation
Foreign keys infoReferential integrityyesyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID infoisolation level can be parameterizedACID infoMVCCno infoAtomicity and isolation are supported for single operations
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infoVersion 12c introduced the new option 'Oracle Database In-Memory'noyes infoin-memory tables
User concepts infoAccess controlfine grained access rights according to SQL-standardfine grained access rights according to SQL-standardfine grained access rights according to SQL-standardAccess rights for users can be defined per object
More information provided by the system vendor
Microsoft SQL ServerOraclePostgres-XLScyllaDB
Specific characteristicsScylla is a highly-available, highly-scalable, highly-performant NoSQL database....
» more
Competitive advantagesHighly-performant (efficiently utilizes full resources of a node and network; millions...
» more
Typical application scenariosAdTech ( AdGear , AppMonet , Dstillery , FullContact , MediaMath , Numberly , SAS...
» more
Key customersComcast, Grab, OlaCabs, Yahoo! Japan, IMVU, Adgear, Xandr, Zenly, Natura, Snapfish,...
» more
Licensing and pricing modelsScylla Open Source - free open source software (AGPL) Scylla Enterprise - subscription-based...
» more

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More resources
Microsoft SQL ServerOraclePostgres-XLScyllaDB
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Conferences and events

How Application-Level Priority Management Keeps Latency Low And Throughput High
Webinar, 10am PDT / 1pm EDT / 7pm CEST, 26 October 2021

Critical Attributes for a High-Performance, Low-Latency Database
Webinar, 10am PDT / 1pm EDT / 7pm CEST, 28 October 2021

Scylla University LIVE (Americas)
Instructor-led NoSQL database training / 9AM-1PM PT, 9 November 2021

Scylla University LIVE (EMEA and APAC)
Instructor-led NoSQL database training / 8AM-12AM UTC, 10 November 2021

Scylla Virtual Workshop
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P99 CONF - Cross-Industry Event on All Things P99
Virtual Conference, 6-7 October 2021 (finished)

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