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DBMS > LevelDB vs. SQream DB vs. Transwarp StellarDB vs. XTDB

System Properties Comparison LevelDB vs. SQream DB vs. Transwarp StellarDB vs. XTDB

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Editorial information provided by DB-Engines
NameLevelDB  Xexclude from comparisonSQream DB  Xexclude from comparisonTranswarp StellarDB  Xexclude from comparisonXTDB infoformerly named Crux  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 distributed graph DBMS built for enterprise-level graph applicationsA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelKey-value storeRelational DBMSGraph DBMSDocument store
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#371  Overall
#39  Graph DBMS
Score0.18
Rank#332  Overall
#46  Document stores
Websitegithub.com/­google/­leveldbsqream.comwww.transwarp.cn/­en/­product/­stellardbgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mddocs.sqream.comwww.xtdb.com/­docs
DeveloperGoogleSQream TechnologiesTranswarpJuxt Ltd.
Initial release201120172019
Current release1.23, February 20212022.1.6, December 20221.19, September 2021
License infoCommercial or Open SourceOpen Source infoBSDcommercialcommercialOpen Source infoMIT License
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, ScalaClojure
Server operating systemsIllumos
Linux
OS X
Windows
LinuxAll OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeyesschema-free
Typing infopredefined data types such as float or datenoyes, ANSI Standard SQL Typesyes, extensible-data-notation format
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 indexesnonoyes
SQL infoSupport of SQLnoyesSQL-like query languagelimited SQL, making use of Apache Calcite
APIs and other access methods.Net
JDBC
ODBC
OpenCypherHTTP REST
JDBC
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
C++
Java
JavaScript (Node.js)
Python
Clojure
Java
Server-side scripts infoStored proceduresnouser defined functions in Pythonno
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal and vertical partitioninghorizontal partitioningnone
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyes infowith automatic compression on writesyesyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
User concepts infoAccess controlnoyes

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More resources
LevelDBSQream DBTranswarp StellarDBXTDB infoformerly named Crux
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