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DBMS > Alibaba Cloud PolarDB vs. LMDB vs. Oracle Coherence

System Properties Comparison Alibaba Cloud PolarDB vs. LMDB vs. Oracle Coherence

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Editorial information provided by DB-Engines
NameAlibaba Cloud PolarDB  Xexclude from comparisonLMDB  Xexclude from comparisonOracle Coherence  Xexclude from comparison
DescriptionA cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. Designed for business critical applications.A high performant, light-weight, embedded key-value database libraryOracles in-memory data grid solution
Primary database modelRelational DBMSKey-value storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.82
Rank#205  Overall
#97  Relational DBMS
Score1.94
Rank#120  Overall
#20  Key-value stores
Score1.90
Rank#127  Overall
#21  Key-value stores
Websitewww.alibabacloud.com/­product/­polardbwww.symas.com/­symas-embedded-database-lmdbwww.oracle.com/­java/­coherence
Technical documentationwww.alibabacloud.com/­help/­en/­polardb/­product-overviewwww.lmdb.tech/­docdocs.oracle.com/­en/­middleware/­standalone/­coherence
DeveloperAlibabaSymasOracle
Initial release20112007
Current release0.9.32, January 202414.1, August 2023
License infoCommercial or Open SourcecommercialOpen Sourcecommercial
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCJava
Server operating systemshostedLinux
Unix
Windows
All OS with a Java VM
Data schemeyesschema-freeschema-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.yesnono
Secondary indexesyesnono
SQL infoSupport of SQLyesnono
APIs and other access methodsJDBC
ODBC
JCache
JPA
RESTful HTTP API
Supported programming languagesJava
Python
.Net
C
C++
Clojure
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Nim
Objective C
OCaml
Perl
PHP
Python
R
Ruby
Rust
Swift
Tcl
.Net
C++
Java
Server-side scripts infoStored proceduresyesnono
Triggersyesnoyes infoLive Events
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud servicenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud servicenoneyes, 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 integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDconfigurable
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.yesyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardnoauthentification to access the cache via certificates or http basic authentication
More information provided by the system vendor
Alibaba Cloud PolarDBLMDBOracle Coherence
Specific characteristicsPolarDB, previously ApsaraDB for PolarDB, is a cloud-native relational database designed...
» more
Competitive advantagesWebinar: Top Scientists Live: Tech Secrets to Double 11's Success Revealed. White...
» more
Typical application scenariosCreating a Robust Cloud-Based Database for Fintech, E-Commerce and Gaming. Learn...
» more
Licensing and pricing modelsSpecification and pricing. You can use either of the following billing methods to...
» more

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More resources
Alibaba Cloud PolarDBLMDBOracle Coherence
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