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DBMS > LMDB vs. OushuDB vs. Percona Server for MySQL vs. Trafodion

System Properties Comparison LMDB vs. OushuDB vs. Percona Server for MySQL vs. Trafodion

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Editorial information provided by DB-Engines
NameLMDB  Xexclude from comparisonOushuDB  Xexclude from comparisonPercona Server for MySQL  Xexclude from comparisonTrafodion  Xexclude from comparison
Apache Trafodion has been retired in 2021. Therefore it is excluded from the DB-Engines Ranking.
DescriptionA high performant, light-weight, embedded key-value database libraryA data warehouse powered by Apache HAWQ supporting descriptive analysis and advanced machine learningEnhanced drop-in replacement for MySQL based on XtraDB or TokuDB storage engines with improved performance and additional diagnostic and management features.Transactional SQL-on-Hadoop DBMS
Primary database modelKey-value storeRelational DBMSRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.62
Rank#117  Overall
#21  Key-value stores
Score0.12
Rank#348  Overall
#150  Relational DBMS
Score2.35
Rank#125  Overall
#59  Relational DBMS
Websitewww.symas.com/­symas-embedded-database-lmdbwww.oushu.com/­product/­oushuDBwww.percona.com/­software/­mysql-database/­percona-servertrafodion.apache.org
Technical documentationwww.lmdb.tech/­docwww.oushu.com/­documentationwww.percona.com/­downloads/­Percona-Server-LATESTtrafodion.apache.org/­documentation.html
DeveloperSymasOushuPerconaApache Software Foundation, originally developed by HP
Initial release201120082014
Current release0.9.32, January 20244.0.1, August 20208.0.36-28, 20242.3.0, February 2019
License infoCommercial or Open SourceOpen SourcecommercialOpen Source infoGPL version 2Open Source infoApache 2.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC and C++C++, Java
Server operating systemsLinux
Unix
Windows
LinuxLinuxLinux
Data schemeschema-freeyesyesyes
Typing infopredefined data types such as float or dateyesyesyes
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.noyesno
Secondary indexesnoyesyesyes
SQL infoSupport of SQLnoFull-featured ANSI SQL supportyesyes
APIs and other access methodsJDBC
ODBC
ADO.NET
JDBC
ODBC
ADO.NET
JDBC
ODBC
Supported programming languages.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
C
C++
Ada
C
C#
C++
D
Eiffel
Erlang
Haskell
Java
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
All languages supporting JDBC/ODBC/ADO.Net
Server-side scripts infoStored proceduresnoyesyesJava Stored Procedures
Triggersnoyesyesno
Partitioning methods infoMethods for storing different data on different nodesnoneyesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMulti-source replication
Source-replica replication
XtraDB Cluster
yes, via HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoHadoop integrationnoyes infovia user defined functions and HBase
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesno
User concepts infoAccess controlnoKerberos, SSL and role based accessUsers with fine-grained authorization concept infono user groups or rolesfine grained access rights according to SQL-standard

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More resources
LMDBOushuDBPercona Server for MySQLTrafodion
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