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DBMS > Apache Drill vs. Firebase Realtime Database vs. H2 vs. IBM Cloudant vs. XTDB

System Properties Comparison Apache Drill vs. Firebase Realtime Database vs. H2 vs. IBM Cloudant vs. XTDB

Editorial information provided by DB-Engines
NameApache Drill  Xexclude from comparisonFirebase Realtime Database  Xexclude from comparisonH2  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionSchema-free SQL Query Engine for Hadoop, NoSQL and Cloud StorageCloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.Full-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.Database as a Service offering based on Apache CouchDBA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelDocument store
Relational DBMS
Document storeRelational DBMSDocument storeDocument store
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.95
Rank#127  Overall
#23  Document stores
#60  Relational DBMS
Score14.29
Rank#39  Overall
#6  Document stores
Score8.13
Rank#49  Overall
#31  Relational DBMS
Score2.68
Rank#106  Overall
#20  Document stores
Score0.11
Rank#343  Overall
#46  Document stores
Websitedrill.apache.orgfirebase.google.com/­products/­realtime-databasewww.h2database.comwww.ibm.com/­products/­cloudantgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationdrill.apache.org/­docsfirebase.google.com/­docs/­databasewww.h2database.com/­html/­main.htmlcloud.ibm.com/­docs/­Cloudantwww.xtdb.com/­docs
DeveloperApache Software FoundationGoogle infoacquired by Google 2014Thomas MuellerIBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014Juxt Ltd.
Initial release20122012200520102019
Current release1.20.3, January 20232.2.220, July 20231.19, September 2021
License infoCommercial or Open SourceOpen Source infoApache Version 2commercialOpen Source infodual-licence (Mozilla public license, Eclipse public license)commercialOpen Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenoyesnoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaErlangClojure
Server operating systemsLinux
OS X
Windows
hostedAll OS with a Java VMhostedAll OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeschema-freeyesschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyesnoyes, 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.nonononono
Secondary indexesnoyesyesyesyes
SQL infoSupport of SQLSQL SELECT statement is SQL:2003 compliantnoyesnolimited SQL, making use of Apache Calcite
APIs and other access methodsJDBC
ODBC
RESTful HTTP API
Android
iOS
JavaScript API
RESTful HTTP API
JDBC
ODBC
RESTful HTTP/JSON APIHTTP REST
JDBC
Supported programming languagesC++Java
JavaScript
Objective-C
JavaC#
Java
JavaScript
Objective-C
PHP
Ruby
Clojure
Java
Server-side scripts infoStored proceduresuser defined functionslimited functionality with using 'rules'Java Stored Procedures and User-Defined FunctionsView functions (Map-Reduce) in JavaScriptno
TriggersnoCallbacks are triggered when data changesyesyesno
Partitioning methods infoMethods for storing different data on different nodesShardingnoneShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesWith clustering: 2 database servers on different computers operate on identical copies of a databaseMulti-source replication
Source-replica replication
yes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual Consistency infoif the client is offline
Immediate Consistency infoif the client is online
Immediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoyesACIDno infoatomic operations within a document possibleACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes, multi-version concurrency control (MVCC)yes infoOptimistic lockingyes
Durability infoSupport for making data persistentDepending on the underlying data sourceyesyesyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.Depending on the underlying data sourceyesno
User concepts infoAccess controlDepending on the underlying data sourceyes, based on authentication and database rulesfine grained access rights according to SQL-standardAccess rights for users can be defined per database

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More resources
Apache DrillFirebase Realtime DatabaseH2IBM CloudantXTDB infoformerly named Crux
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