DBMS > AlaSQL vs. Microsoft Azure SQL Database vs. Netezza

System Properties Comparison AlaSQL vs. Microsoft Azure SQL Database vs. Netezza

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Editorial information provided by DB-Engines
Name	AlaSQL  Xexclude from comparison	Microsoft Azure SQL Database formerly SQL Azure  Xexclude from comparison	Netezza Also called PureData System for Analytics by IBM  Xexclude from comparison
Description	JavaScript DBMS library	Database as a Service offering with high compatibility to Microsoft SQL Server	Data warehouse and analytics appliance part of IBM PureSystems
Primary database model	Document store Relational DBMS	Relational DBMS	Relational DBMS
Secondary database models		Document store Graph DBMS Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.54 Rank #228   Overall #35   Document stores #108   Relational DBMS	Score 84.89 Rank #15   Overall #10   Relational DBMS	Score 18.93 Rank #38   Overall #24   Relational DBMS
Website	alasql.org	azure.microsoft.com/­en-us/­services/­sql-database	www.ibm.com/­products/­netezza
Technical documentation	github.com/­agershun/­alasql	docs.microsoft.com/­en-us/­azure/­azure-sql
Developer	Andrey Gershun & Mathias R. Wulff	Microsoft	IBM
Initial release	2014	2010	2000
Current release		V12
License Commercial or Open Source	Open Source MIT-License	commercial	commercial
Cloud-based only Only available as a cloud service	no	yes	no
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Implementation language	JavaScript	C++
Server operating systems	server-less, requires a JavaScript environment (browser, Node.js)	hosted	Linux included in appliance
Data scheme	schema-free	yes	yes
Typing predefined data types such as float or date	no	yes	yes
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.	no	yes
Secondary indexes	no	yes	yes
SQL Support of SQL	Close to SQL99, but no user access control, stored procedures and host language bindings.	yes	yes
APIs and other access methods	JavaScript API	ADO.NET JDBC ODBC	JDBC ODBC OLE DB
Supported programming languages	JavaScript	.Net C# Java JavaScript (Node.js) PHP Python Ruby	C C++ Fortran Java Lua Perl Python R
Server-side scripts Stored procedures	no	Transact SQL	yes
Triggers	yes	yes	no
Partitioning methods Methods for storing different data on different nodes	none		Sharding
Replication methods Methods for redundantly storing data on multiple nodes	none	yes, with always 3 replicas available	Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	yes
Consistency concepts Methods to ensure consistency in a distributed system	none	Immediate Consistency
Foreign keys Referential integrity	yes	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	yes only for local storage and DOM-storage	ACID	ACID
Concurrency Support for concurrent manipulation of data		yes	yes
Durability Support for making data persistent	yes by using IndexedDB, SQL.JS or proprietary FileStorage	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes
User concepts Access control	no	fine grained access rights according to SQL-standard	Users with fine-grained authorization concept
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More resources
	AlaSQL	Microsoft Azure SQL Database formerly SQL Azure	Netezza Also called PureData System for Analytics by IBM
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