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DBMS > Coveo vs. LeanXcale vs. Oracle Coherence

System Properties Comparison Coveo vs. LeanXcale vs. Oracle Coherence

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Editorial information provided by DB-Engines
NameCoveo  Xexclude from comparisonLeanXcale  Xexclude from comparisonOracle Coherence  Xexclude from comparison
DescriptionAI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code developmentA highly scalable full ACID SQL database with fast NoSQL data ingestion and GIS capabilitiesOracles in-memory data grid solution
Primary database modelSearch engineKey-value store
Relational DBMS
Key-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.30
Rank#104  Overall
#11  Search engines
Score0.25
Rank#296  Overall
#43  Key-value stores
#133  Relational DBMS
Score1.66
Rank#134  Overall
#22  Key-value stores
Websitewww.coveo.comwww.leanxcale.comwww.oracle.com/­java/­coherence
Technical documentationdocs.coveo.comdocs.oracle.com/­en/­middleware/­standalone/­coherence
DeveloperCoveoLeanXcaleOracle
Initial release201220152007
Current release14.1, August 2023
License infoCommercial or Open Sourcecommercialcommercialcommercial
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 languageJava
Server operating systemshostedAll OS with a Java VM
Data schemehybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configurationyesschema-free
Typing infopredefined data types such as float or dateyesyes
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 indexesyesno
SQL infoSupport of SQLnoyes infothrough Apache Derbyno
APIs and other access methodsRESTful HTTP APIJDBC
Kafka Connector
ODBC
proprietary key/value interface
Spark Connector
JCache
JPA
RESTful HTTP API
Supported programming languagesC#
Java
JavaScript
Python
C
Java
Scala
.Net
C++
Java
Server-side scripts infoStored proceduresnono
Triggersyesyes infoLive Events
Partitioning methods infoMethods for storing different data on different nodesyesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesyes, with selectable consistency level
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integrityyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesACIDconfigurable
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes infooptionally
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlgranular access controls, API key management, content filtersauthentification to access the cache via certificates or http basic authentication

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More resources
CoveoLeanXcaleOracle Coherence
Recent citations in the news

Leading Global Enterprises Continue to Find Success with Coveo AI-Relevance and Generative Search
1 May 2025, PR Newswire

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Private equity firms are Coveo Solutions Inc.'s (TSE:CVO) biggest owners and were hit after market cap dropped CA$125m
11 March 2025, Yahoo Finance

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