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DBMS > Microsoft Azure Cosmos DB vs. Microsoft SQL Server vs. searchxml

System Properties Comparison Microsoft Azure Cosmos DB vs. Microsoft SQL Server vs. searchxml

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Editorial information provided by DB-Engines
NameMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparisonMicrosoft SQL Server  Xexclude from comparisonsearchxml  Xexclude from comparison
DescriptionGlobally distributed, horizontally scalable, multi-model database serviceMicrosofts flagship relational DBMSDBMS for structured and unstructured content wrapped with an application server
Primary database modelDocument store
Graph DBMS
Key-value store
Wide column store
Relational DBMSNative XML DBMS
Search engine
Secondary database modelsSpatial DBMSDocument store
Graph DBMS
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score38.52
Rank#26  Overall
#3  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Score970.85
Rank#3  Overall
#3  Relational DBMS
Score0.00
Rank#354  Overall
#7  Native XML DBMS
#19  Search engines
Websiteazure.microsoft.com/­services/­cosmos-dbwww.microsoft.com/­en-us/­sql-serverwww.searchxml.net/­category/­products
Technical documentationdocs.microsoft.com/­azure/­cosmos-dbdocs.microsoft.com/­en-US/­sql/­sql-serverwww.searchxml.net/­support/­handouts
DeveloperMicrosoftMicrosoftinformationpartners gmbh
Initial release201419892015
Current releaseSQL Server 2019, November 20191.0
License infoCommercial or Open Sourcecommercialcommercial inforestricted free version is availablecommercial
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++C++
Server operating systemshostedLinux
Windows
Windows
Data schemeschema-freeyesschema-free
Typing infopredefined data types such as float or dateyes infoJSON typesyesyes
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.yesyes
Secondary indexesyes infoAll properties auto-indexed by defaultyesyes
SQL infoSupport of SQLSQL-like query languageyesno
APIs and other access methodsDocumentDB API
Graph API (Gremlin)
MongoDB API
RESTful HTTP API
Table API
ADO.NET
JDBC
ODBC
OLE DB
Tabular Data Stream (TDS)
RESTful HTTP API
WebDAV
XQuery
XSLT
Supported programming languages.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
C#
C++
Delphi
Go
Java
JavaScript (Node.js)
PHP
Python
R
Ruby
Visual Basic
C++ infomost other programming languages supported via APIs
Server-side scripts infoStored proceduresJavaScriptTransact SQL, .NET languages, R, Python and (with SQL Server 2019) Javayes infoon the application server
TriggersJavaScriptyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud servicetables can be distributed across several files (horizontal partitioning); sharding through federationnone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceyes, but depending on the SQL-Server Editionyes infosychronisation to multiple collections
MapReduce infoOffers an API for user-defined Map/Reduce methodswith Hadoop integration infoIntegration with Hadoop/HDInsight on Azure*nono
Consistency concepts infoMethods to ensure consistency in a distributed systemBounded Staleness
Consistent Prefix
Eventual Consistency
Immediate Consistency infoConsistency level configurable on request level
Session Consistency
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataMulti-item ACID transactions with snapshot isolation within a partitionACIDmultiple readers, single writer
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlAccess rights can be defined down to the item levelfine grained access rights according to SQL-standardDomain, group and role-based access control at the document level and for application services

More information provided by the system vendor

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More resources
Microsoft Azure Cosmos DB infoformer name was Azure DocumentDBMicrosoft SQL Serversearchxml
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Recent citations in the news

Azure Cosmos DB: autoscale, session state, monitoring, and more | Azure Friday - Microsoft
24 September 2021, Channel 9

Microsoft to Azure Cosmos DB Users: Your Data May Have Been Exposed
30 August 2021, Redmondmag.com

Microsoft Azure Cosmos DB incident underscores the need to closely watch cloud data – Urgent Comms
1 September 2021, Urgent Communications

Azure Cosmos DB users urged to change digital keys as critical flaw emerges
29 August 2021, ARNnet

Weekly threat roundup: Exchange Server, AMD CPUs, Azure Cosmos DB
2 September 2021, IT PRO

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Just Published: Successfully Virtualizing Microsoft SQL Server for High Availability on Azure VMware Solutions
27 September 2021, Marketscreener.com

Q&A with Karen Lopez: A Database Designer's Favorite New SQL Server Features
22 September 2021, Redmondmag.com

Microsoft Open Sources .NET 5 C# Language Extension for SQL Server
10 September 2021, Visual Studio Magazine

Managing SQL Server Agent Jobs with Notebook Jobs in Azure Data Studio - Microsoft
31 August 2021, Channel 9

How to Exploit SQL Server Using Registry Keys
7 September 2021, Security Boulevard

provided by Google News

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