DBMS > Atos Standard Common Repository vs. CockroachDB vs. LeanXcale vs. Microsoft Azure AI Search

System Properties Comparison Atos Standard Common Repository vs. CockroachDB vs. LeanXcale vs. Microsoft Azure AI Search

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Name	Atos Standard Common Repository  Xexclude from comparison	CockroachDB  Xexclude from comparison	LeanXcale  Xexclude from comparison	Microsoft Azure AI Search  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	CockroachDB is a distributed database architected for modern cloud applications. It is wire compatible with PostgreSQL and backed by a Key-Value Store, which is either RocksDB or a purpose-built derivative, called Pebble.	A highly scalable full ACID SQL database with fast NoSQL data ingestion and GIS capabilities	Search-as-a-service for web and mobile app development
Primary database model	Document store Key-value store	Relational DBMS	Key-value store Relational DBMS	Search engine
Secondary database models				Vector DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 5.73 Rank #58   Overall #34   Relational DBMS	Score 0.36 Rank #280   Overall #40   Key-value stores #129   Relational DBMS	Score 5.52 Rank #59   Overall #6   Search engines
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	www.cockroachlabs.com	www.leanxcale.com	azure.microsoft.com/­en-us/­services/­search
Technical documentation		www.cockroachlabs.com/­docs		learn.microsoft.com/­en-us/­azure/­search
Developer	Atos Convergence Creators	Cockroach Labs	LeanXcale	Microsoft
Initial release	2016	2015	2015	2015
Current release	1703	24.1.0, May 2024		V1
License Commercial or Open Source	commercial	Open Source Apache 2.0, commercial license available	commercial	commercial
Cloud-based only Only available as a cloud service	no	no	no	yes
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Java	Go
Server operating systems	Linux	Linux macOS Windows		hosted
Data scheme	Schema and schema-less with LDAP views	dynamic schema	yes	yes
Typing predefined data types such as float or date	optional	yes		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		no
Secondary indexes	yes	yes		yes
SQL Support of SQL	no	yes, wire compatible with PostgreSQL	yes through Apache Derby	no
APIs and other access methods	LDAP	JDBC	JDBC Kafka Connector ODBC proprietary key/value interface Spark Connector	RESTful HTTP API
Supported programming languages	All languages with LDAP bindings	C# C++ Clojure Go Java JavaScript (Node.js) PHP Python Ruby Rust	C Java Scala	C# Java JavaScript Python
Server-side scripts Stored procedures	no	no		no
Triggers	yes	no		no
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	horizontal partitioning (by key range) all tables are translated to an ordered KV store and then broken down into 64MB ranges, which are then used as replicas in RAFT		Sharding Implicit feature of the cloud service
Replication methods Methods for redundantly storing data on multiple nodes	yes	Multi-source replication using RAFT		yes Implicit feature of the cloud service
MapReduce Offers an API for user-defined Map/Reduce methods		no	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency or Eventual Consistency depending on configuration	Immediate Consistency	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	yes	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	ACID	ACID	no
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	yes	no
User concepts Access control	LDAP bind authentication	Role-based access control		yes using Azure authentication
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More resources
	Atos Standard Common Repository	CockroachDB	LeanXcale	Microsoft Azure AI Search
Recent citations in the news		Cockroach Labs Deepens Partnership with Google Cloud, CockroachDB Selected to Join Google Distributed Cloud 9 April 2024, PR Newswire CockroachDB tempts legacy databases to crawl into the cloud age 29 January 2024, The Register How DoorDash Migrated from Aurora Postgres to CockroachDB 5 December 2023, The New Stack DoorDash Uses CockroachDB to Create Config Management Platform for Microservices 14 February 2024, InfoQ.com How to Unlock Real-Time Data Streams with CockroachDB and Amazon MSK | Amazon Web Services 6 November 2023, AWS Blog provided by Google News		Announcing updates to Azure AI Search to help organizations build and scale generative AI applications 4 April 2024, Microsoft Microsoft and ServiceNow at Knowledge 2024: Introducing generative AI innovation 13 June 2024, Microsoft Azure OpenAI Service: Transforming legal practices with generative AI solutions 12 June 2024, Microsoft Public Preview of Azure OpenAI and AI Search in-app connectors for Logic Apps (Standard) | Azure updates 2 April 2024, Microsoft Raise the bar on AI-powered app development with Azure Database for PostgreSQL 5 June 2024, Microsoft provided by Google News

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