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DBMS > AlaSQL vs. Apache Impala vs. Ehcache vs. EJDB vs. LokiJS

System Properties Comparison AlaSQL vs. Apache Impala vs. Ehcache vs. EJDB vs. LokiJS

Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonApache Impala  Xexclude from comparisonEhcache  Xexclude from comparisonEJDB  Xexclude from comparisonLokiJS  Xexclude from comparison
DescriptionJavaScript DBMS libraryAnalytic DBMS for HadoopA widely adopted Java cache with tiered storage optionsEmbeddable document-store database library with JSON representation of queries (in MongoDB style)In-memory JavaScript DBMS
Primary database modelDocument store
Relational DBMS
Relational DBMSKey-value storeDocument storeDocument store
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.46
Rank#260  Overall
#40  Document stores
#121  Relational DBMS
Score13.77
Rank#40  Overall
#24  Relational DBMS
Score4.89
Rank#67  Overall
#8  Key-value stores
Score0.27
Rank#297  Overall
#44  Document stores
Score0.43
Rank#264  Overall
#42  Document stores
Websitealasql.orgimpala.apache.orgwww.ehcache.orggithub.com/­Softmotions/­ejdbgithub.com/­techfort/­LokiJS
Technical documentationgithub.com/­AlaSQL/­alasqlimpala.apache.org/­impala-docs.htmlwww.ehcache.org/­documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdtechfort.github.io/­LokiJS
DeveloperAndrey Gershun & Mathias R. WulffApache Software Foundation infoApache top-level project, originally developed by ClouderaTerracotta Inc, owned by Software AGSoftmotions
Initial release20142013200920122014
Current release4.1.0, June 20223.10.0, March 2022
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoApache Version 2Open Source infoApache Version 2; commercial licenses availableOpen Source infoGPLv2Open Source
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptC++JavaCJavaScript
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)LinuxAll OS with a Java VMserver-lessserver-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeyesschema-freeschema-freeschema-free
Typing infopredefined data types such as float or datenoyesyesyes infostring, integer, double, bool, date, object_idno
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.nononono
Secondary indexesnoyesnonoyes infovia views
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.SQL-like DML and DDL statementsnonono
APIs and other access methodsJavaScript APIJDBC
ODBC
JCachein-process shared libraryJavaScript API
Supported programming languagesJavaScriptAll languages supporting JDBC/ODBCJavaActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
JavaScript
Server-side scripts infoStored proceduresnoyes infouser defined functions and integration of map-reducenonoView functions in JavaScript
Triggersyesnoyes infoCache Event Listenersnoyes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingSharding infoby using Terracotta Servernonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factoryes infoby using Terracotta Servernonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infoquery execution via MapReducenonoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual ConsistencyTunable Consistency (Strong, Eventual, Weak)none
Foreign keys infoReferential integrityyesnonono infotypically not needed, however similar functionality with collection joins possibleno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storagenoyes infosupports JTA and can work as an XA resourcenono infoatomic operations within a single collection possible
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoRead/Write Locking
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesyes infousing a tiered cache-storage approachyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesyes
User concepts infoAccess controlnoAccess rights for users, groups and roles infobased on Apache Sentry and Kerberosnonono

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More resources
AlaSQLApache ImpalaEhcacheEJDBLokiJS
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