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DBMS > LevelDB vs. OpenMLDB vs. RethinkDB vs. SAP HANA vs. SwayDB

System Properties Comparison LevelDB vs. OpenMLDB vs. RethinkDB vs. SAP HANA vs. SwayDB

Editorial information provided by DB-Engines
NameLevelDB  Xexclude from comparisonOpenMLDB  Xexclude from comparisonRethinkDB  Xexclude from comparisonSAP HANA  Xexclude from comparisonSwayDB  Xexclude from comparison
DescriptionEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesAn open-source machine learning database that provides a feature platform for training and inferenceDBMS for the Web with a mechanism to push updated query results to applications in realtime.In-memory, column based data store. Available as appliance or cloud serviceAn embeddable, non-blocking, type-safe key-value store for single or multiple disks and in-memory storage
Primary database modelKey-value storeTime Series DBMSDocument storeRelational DBMSKey-value store
Secondary database modelsRelational DBMSSpatial DBMSDocument store
Graph DBMS infowith SAP Hana, Enterprise Edition
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.25
Rank#115  Overall
#19  Key-value stores
Score0.10
Rank#359  Overall
#36  Time Series DBMS
Score2.66
Rank#107  Overall
#20  Document stores
Score44.27
Rank#23  Overall
#16  Relational DBMS
Score0.04
Rank#387  Overall
#61  Key-value stores
Websitegithub.com/­google/­leveldbopenmldb.airethinkdb.comwww.sap.com/­products/­hana.htmlswaydb.simer.au
Technical documentationgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdopenmldb.ai/­docs/­zh/­mainrethinkdb.com/­docshelp.sap.com/­hana
DeveloperGoogle4 Paradigm Inc.The Linux Foundation infosince July 2017SAPSimer Plaha
Initial release20112020200920102018
Current release1.23, February 20212024-2 February 20242.4.1, August 20202.0 SPS07 (April 4, 2023), April 2023
License infoCommercial or Open SourceOpen Source infoBSDOpen SourceOpen Source infoApache Version 2commercialOpen Source infoGNU Affero GPL V3.0
Cloud-based only infoOnly available as a cloud servicenononono infoalso available as a cloud based serviceno
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++C++, Java, ScalaC++Scala
Server operating systemsIllumos
Linux
OS X
Windows
LinuxLinux
OS X
Windows
Appliance or cloud-service
Data schemeschema-freeFixed schemaschema-freeyesschema-free
Typing infopredefined data types such as float or datenoyesyes infostring, binary, float, bool, date, geometryyesno
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.nonononono
Secondary indexesnoyesyesyesno
SQL infoSupport of SQLnoyesnoyesno
APIs and other access methodsJDBC
SQLAlchemy
JDBC
ODBC
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
C++
Go
Java
Python
Scala
C infocommunity-supported driver
C# infocommunity-supported driver
C++ infocommunity-supported driver
Clojure infocommunity-supported driver
Dart infocommunity-supported driver
Erlang infocommunity-supported driver
Go infocommunity-supported driver
Haskell infocommunity-supported driver
Java infoofficial driver
JavaScript (Node.js) infoofficial driver
Lisp infocommunity-supported driver
Lua infocommunity-supported driver
Objective-C infocommunity-supported driver
Perl infocommunity-supported driver
PHP infocommunity-supported driver
Python infoofficial driver
Ruby infoofficial driver
Scala infocommunity-supported driver
Java
Kotlin
Scala
Server-side scripts infoStored proceduresnonoSQLScript, Rno
TriggersnonoClient-side triggers through changefeedsyesno
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal partitioningSharding inforange basedyesnone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneSource-replica replicationSource-replica replicationyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoAtomic single-document operationsACIDAtomic execution of operations
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoMVCC basedyesyes
Durability infoSupport for making data persistentyes infowith automatic compression on writesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesyes
User concepts infoAccess controlnofine grained access rights according to SQL-standardyes infousers and table-level permissionsyesno

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More resources
LevelDBOpenMLDBRethinkDBSAP HANASwayDB
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