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DBMS > LevelDB vs. SQream DB vs. Tkrzw vs. Transwarp Hippo

System Properties Comparison LevelDB vs. SQream DB vs. Tkrzw vs. Transwarp Hippo

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Editorial information provided by DB-Engines
NameLevelDB  Xexclude from comparisonSQream DB  Xexclude from comparisonTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparisonTranswarp Hippo  Xexclude from comparison
DescriptionEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesa GPU-based, columnar RDBMS for big data analytics workloadsA concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto CabinetCloud-native distributed Vector DBMS that supports storage, retrieval, and management of massive vector-based datasets
Primary database modelKey-value storeRelational DBMSKey-value storeVector DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.25
Rank#115  Overall
#19  Key-value stores
Score0.74
Rank#224  Overall
#103  Relational DBMS
Score0.07
Rank#372  Overall
#57  Key-value stores
Score0.05
Rank#386  Overall
#15  Vector DBMS
Websitegithub.com/­google/­leveldbsqream.comdbmx.net/­tkrzwwww.transwarp.cn/­en/­subproduct/­hippo
Technical documentationgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mddocs.sqream.com
DeveloperGoogleSQream TechnologiesMikio Hirabayashi
Initial release2011201720202023
Current release1.23, February 20212022.1.6, December 20220.9.3, August 20201.0, May 2023
License infoCommercial or Open SourceOpen Source infoBSDcommercialOpen Source infoApache Version 2.0commercial
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 languageC++C++, CUDA, Haskell, Java, ScalaC++C++
Server operating systemsIllumos
Linux
OS X
Windows
LinuxLinux
macOS
Linux
macOS
Data schemeschema-freeyesschema-free
Typing infopredefined data types such as float or datenoyes, ANSI Standard SQL TypesnoVector, Numeric and String
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.nonono
Secondary indexesnonono
SQL infoSupport of SQLnoyesnono
APIs and other access methods.Net
JDBC
ODBC
RESTful HTTP API
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
C++
Java
JavaScript (Node.js)
Python
C++
Java
Python
Ruby
C++
Java
Python
Server-side scripts infoStored proceduresnouser defined functions in Pythonnono
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal and vertical partitioningnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnonenonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyes infowith automatic compression on writesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infousing specific database classesyes
User concepts infoAccess controlnonoRole based access control and fine grained access rights

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More resources
LevelDBSQream DBTkrzw infoSuccessor of Tokyo Cabinet and Kyoto CabinetTranswarp Hippo
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