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DBMS > AlaSQL vs. Impala

System Properties Comparison AlaSQL vs. Impala

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Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonImpala  Xexclude from comparison
DescriptionJavaScript DBMS libraryAnalytic DBMS for Hadoop
Primary database modelDocument store
Relational DBMS
Relational DBMS
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.48
Rank#204  Overall
#28  Document stores
#98  Relational DBMS
Score14.86
Rank#37  Overall
#23  Relational DBMS
Websitealasql.orgwww.cloudera.com/­products/­open-source/­apache-hadoop/­impala.html
Technical documentationgithub.com/­agershun/­alasqlwww.cloudera.com/­documentation/­enterprise/­latest/­topics/­impala.html
DeveloperAndrey Gershun & Mathias R. WulffCloudera
Initial release20142013
Current release3.2.0, March 2019
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoApache Version 2
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptC++
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)Linux
Data schemeschema-freeyes
Typing infopredefined data types such as float or datenoyes
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 indexesnoyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.SQL-like DML and DDL statements
APIs and other access methodsJavaScript APIJDBC
ODBC
Supported programming languagesJavaScriptAll languages supporting JDBC/ODBC
Server-side scripts infoStored proceduresnoyes infouser defined functions and integration of map-reduce
Triggersyesno
Partitioning methods infoMethods for storing different data on different nodesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infoquery execution via MapReduce
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual Consistency
Foreign keys infoReferential integrityyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageno
Concurrency infoSupport for concurrent manipulation of datayes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlnoAccess rights for users, groups and roles infobased on Apache Sentry and Kerberos

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More resources
AlaSQLImpala
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