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DBMS > Microsoft Azure Cosmos DB vs. Sadas Engine vs. VelocityDB

System Properties Comparison Microsoft Azure Cosmos DB vs. Sadas Engine vs. VelocityDB

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Editorial information provided by DB-Engines
NameMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparisonSadas Engine  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionGlobally distributed, horizontally scalable, multi-model database serviceSADAS Engine is a columnar DBMS specifically designed for high performance in Data warehouse environmentsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelDocument store
Graph DBMS
Key-value store
Wide column store
Relational DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score40.29
Rank#26  Overall
#3  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Score0.00
Rank#351  Overall
#146  Relational DBMS
Score0.10
Rank#310  Overall
#29  Graph DBMS
#17  Object oriented DBMS
Websiteazure.microsoft.com/­services/­cosmos-dbwww.sadasengine.comvelocitydb.com
Technical documentationdocs.microsoft.com/­azure/­cosmos-dbwww.sadasengine.com/­index.php/­downloads/­documentation-columnar-dbvelocitydb.com/­UserGuide
DeveloperMicrosoftSADAS s.r.l.VelocityDB Inc
Initial release201420062011
Current release8.07.x
License infoCommercial or Open Sourcecommercialcommercial infofree trial version availablecommercial
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++C#
Server operating systemshostedAIX
Linux
Windows
Any that supports .NET
Data schemeschema-freeyesyes
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.nono
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
JDBC
ODBC
Proprietary protocol
.Net
Supported programming languages.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
.Net
C
C#
C++
Groovy
Java
PHP
Python
.Net
Server-side scripts infoStored proceduresJavaScriptnono
TriggersJavaScriptnoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud servicehorizontal partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud servicenone
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 partitionACID
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.yes infomanaged by 'Learn by Usage'yes
User concepts infoAccess controlAccess rights can be defined down to the item levelAccess rights for users, groups and roles according to SQL-standardBased on Windows Authentication

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More resources
Microsoft Azure Cosmos DB infoformer name was Azure DocumentDBSadas EngineVelocityDB
Recent citations in the news

NoSQL Software Market: MongoDB, OrientDB, Amazon, Azure Cosmos DB, Couchbase, ArangoDB, CouchDB, MarkLogic, SQL-RD, RethinkDB, RavenDB, Microsoft, Redis – Puck77
21 October 2021, Puck77

Azure Cosmos DB alert: This critical vulnerability puts users at risk
27 August 2021, ZDNet

Public Clouds & Shared Responsibility: Lessons from Vulnerability Disclosure
26 October 2021, Threatpost

Document Databases Software Market SWOT Analysis by 2028: MongoDB, Amazon, ArangoDB, Azure Cosmos DB, Couchbase etc. – Puck77
24 October 2021, Puck77

Microsoft shares guidance on securing Azure Cosmos DB accounts
30 August 2021, BleepingComputer

provided by Google News

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