DBMS > Atos Standard Common Repository vs. Google Cloud Datastore vs. Microsoft Azure Data Explorer vs. VelocityDB

System Properties Comparison Atos Standard Common Repository vs. Google Cloud Datastore vs. Microsoft Azure Data Explorer vs. VelocityDB

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	Google Cloud Datastore  Xexclude from comparison	Microsoft Azure Data Explorer  Xexclude from comparison	VelocityDB  Xexclude from comparison
	This system has been discontinued and will be removed from the DB-Engines ranking.
Description	Highly scalable database system, designed for managing session and subscriber data in modern mobile communication networks	Automatically scaling NoSQL Database as a Service (DBaaS) on the Google Cloud Platform	Fully managed big data interactive analytics platform	A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database model	Document store Key-value store	Document store	Relational DBMS column oriented	Graph DBMS Object oriented DBMS
Secondary database models			Document store If a column is of type dynamic docs.microsoft.com/­en-us/­azure/­kusto/­query/­scalar-data-types/­dynamic then it's possible to add arbitrary JSON documents in this cell Event Store this is the general usage pattern at Microsoft. Billing, Logs, Telemetry events are stored in ADX and the state of an individual entity is defined by the arg_max(timestamps) Spatial DBMS Search engine support for complex search expressions docs.microsoft.com/­en-us/­azure/­kusto/­query/­parseoperator FTS, Geospatial docs.microsoft.com/­en-us/­azure/­kusto/­query/­geo-point-to-geohash-function distributed search -> ADX acts as a distributed search engine Time Series DBMS see docs.microsoft.com/­en-us/­azure/­data-explorer/­time-series-analysis
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 4.36 Rank #72   Overall #12   Document stores	Score 3.80 Rank #81   Overall #43   Relational DBMS	Score 0.11 Rank #354   Overall #37   Graph DBMS #15   Object oriented DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	cloud.google.com/­datastore	azure.microsoft.com/­services/­data-explorer	velocitydb.com
Technical documentation		cloud.google.com/­datastore/­docs	docs.microsoft.com/­en-us/­azure/­data-explorer	velocitydb.com/­UserGuide
Developer	Atos Convergence Creators	Google	Microsoft	VelocityDB Inc
Initial release	2016	2008	2019	2011
Current release	1703		cloud service with continuous releases	7.x
License Commercial or Open Source	commercial	commercial	commercial	commercial
Cloud-based only Only available as a cloud service	no	yes	yes	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Java			C#
Server operating systems	Linux	hosted	hosted	Any that supports .NET
Data scheme	Schema and schema-less with LDAP views	schema-free	Fixed schema with schema-less datatypes (dynamic)	yes
Typing predefined data types such as float or date	optional	yes, details here	yes bool, datetime, dynamic, guid, int, long, real, string, timespan, double: docs.microsoft.com/­en-us/­azure/­kusto/­query/­scalar-data-types	yes
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.	yes	no	yes	no
Secondary indexes	yes	yes	all fields are automatically indexed	yes
SQL Support of SQL	no	SQL-like query language (GQL)	Kusto Query Language (KQL), SQL subset	no
APIs and other access methods	LDAP	gRPC (using protocol buffers) API RESTful HTTP/JSON API	Microsoft SQL Server communication protocol (MS-TDS) RESTful HTTP API	.Net
Supported programming languages	All languages with LDAP bindings	.Net Go Java JavaScript (Node.js) PHP Python Ruby	.Net Go Java JavaScript (Node.js) PowerShell Python R	.Net
Server-side scripts Stored procedures	no	using Google App Engine	Yes, possible languages: KQL, Python, R	no
Triggers	yes	Callbacks using the Google Apps Engine	yes see docs.microsoft.com/­en-us/­azure/­kusto/­management/­updatepolicy	Callbacks are triggered when data changes
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	Sharding	Sharding Implicit feature of the cloud service	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes	Multi-source replication using Paxos	yes Implicit feature of the cloud service. Replication either local, cross-facility or geo-redundant.
MapReduce Offers an API for user-defined Map/Reduce methods		yes using Google Cloud Dataflow	Spark connector (open source): github.com/­Azure/­azure-kusto-spark	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency or Eventual Consistency depending on configuration	Immediate Consistency or Eventual Consistency depending on type of query and configuration Strong Consistency is default for entity lookups and queries within an Entity Group (but can instead be made eventually consistent). Other queries are always eventual consistent.	Eventual Consistency Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	yes via ReferenceProperties or Ancestor paths	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	ACID Serializable Isolation within Transactions, Read Committed outside of Transactions	no	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes	no	no	yes
User concepts Access control	LDAP bind authentication	Access rights for users, groups and roles based on Google Cloud Identity and Access Management (IAM)	Azure Active Directory Authentication	Based on Windows Authentication
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More resources
	Atos Standard Common Repository	Google Cloud Datastore	Microsoft Azure Data Explorer	VelocityDB
Recent citations in the news		Best cloud storage of 2024 21 May 2024, TechRadar Google Cloud Stops Exit Fees 12 January 2024, Spiceworks News and Insights BigID Data Intelligence Platform Now Available on Google Cloud Marketplace 6 November 2023, PR Newswire Google Cloud is NOT magicking away data egress fees 12 January 2024, The Stack Why Google is waiving egress fees for disgruntled customers ditching GCP 11 January 2024, The Register provided by Google News	We’re retiring Azure Time Series Insights on 7 July 2024 – transition to Azure Data Explorer | Azure updates 31 May 2024, Microsoft Azure Data Explorer: Log and telemetry analytics benchmark 16 August 2022, Microsoft Controlling costs in Azure Data Explorer using down-sampling and aggregation 11 February 2019, Microsoft Providing modern data transfer and storage service at Microsoft with Microsoft Azure - Inside Track Blog 13 July 2023, Microsoft Individually great, collectively unmatched: Announcing updates to 3 great Azure Data Services 7 February 2019, Microsoft provided by Google News

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