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DBMS > Druid vs. RocksDB vs. Snowflake

System Properties Comparison Druid vs. RocksDB vs. Snowflake

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Editorial information provided by DB-Engines
NameDruid  Xexclude from comparisonRocksDB  Xexclude from comparisonSnowflake  Xexclude from comparison
DescriptionOpen-source analytics data store designed for OLAP queries on timeseries dataEmbeddable persistent key-value store optimized for fast storage (flash and RAM)Cloud-based data warehousing service for structured and semi-structured data
Primary database modelRelational DBMS
Time Series DBMS
Key-value storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.79
Rank#117  Overall
#58  Relational DBMS
#7  Time Series DBMS
Score2.52
Rank#103  Overall
#19  Key-value stores
Score2.56
Rank#101  Overall
#50  Relational DBMS
Websitedruid.iorocksdb.orgwww.snowflake.com
Technical documentationdruid.io/­docs/­latest/­design/­index.htmlgithub.com/­facebook/­rocksdb/­wikidocs.snowflake.net/­manuals/­index.html
DeveloperMetamarkets Group and contributorsFacebook, Inc.Snowflake Computing Inc.
Initial release201220132014
Current release6.3.6, October 2019
License infoCommercial or Open SourceOpen Source infoApache license v2Open Source infoBSDcommercial
Cloud-based only infoOnly available as a cloud servicenonoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++
Server operating systemsLinux
OS X
Unix
hosted
Data schemeyes infoschema-less columns are supportedschema-freeyes infosupport of semi-structured data formats (JSON, XML, Avro)
Typing infopredefined data types such as float or dateyesnoyes
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.nonoyes
Secondary indexesyesno
SQL infoSupport of SQLSQL support via Apache Calcite adapternoyes
APIs and other access methodsJSON over HTTPC++ API
Java API
CLI Client
JDBC
ODBC
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
C++
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresnonouser defined functions
Triggersnonono infosimilar concept for controling cloud resources
Partitioning methods infoMethods for storing different data on different nodesShardingnoneyes
Replication methods infoMethods for redundantly storing data on multiple nodesyes, via HDFS, S3 or other storage enginesnoneyes
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 integritynonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoyesACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno
User concepts infoAccess controlno infoavailable via extensionsnoUsers with fine-grained authorization concept, user roles and pluggable authentication

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More resources
DruidRocksDBSnowflake
Recent citations in the news

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