DBMS > AlaSQL vs. Alibaba Cloud TSDB vs. Hawkular Metrics vs. Microsoft Azure Synapse Analytics

System Properties Comparison AlaSQL vs. Alibaba Cloud TSDB vs. Hawkular Metrics vs. Microsoft Azure Synapse Analytics

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Editorial information provided by DB-Engines
Name	AlaSQL  Xexclude from comparison	Alibaba Cloud TSDB  Xexclude from comparison	Hawkular Metrics  Xexclude from comparison	Microsoft Azure Synapse Analytics previously named Azure SQL Data Warehouse  Xexclude from comparison
Description	JavaScript DBMS library	A stable, reliable, and cost-effective online high-performance time series database service	Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.	Elastic, large scale data warehouse service leveraging the broad eco-system of SQL Server
Primary database model	Document store Relational DBMS	Time Series DBMS	Time Series DBMS	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.51 Rank #256   Overall #40   Document stores #118   Relational DBMS	Score 0.29 Rank #301   Overall #26   Time Series DBMS	Score 0.08 Rank #366   Overall #39   Time Series DBMS	Score 19.93 Rank #31   Overall #19   Relational DBMS
Website	alasql.org	www.alibabacloud.com/­product/­hitsdb	www.hawkular.org	azure.microsoft.com/­services/­synapse-analytics
Technical documentation	github.com/­AlaSQL/­alasql	www.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdb	www.hawkular.org/­hawkular-metrics/­docs/­user-guide	docs.microsoft.com/­azure/­synapse-analytics
Developer	Andrey Gershun & Mathias R. Wulff	Alibaba	Community supported by Red Hat	Microsoft
Initial release	2014		2014	2016
License Commercial or Open Source	Open Source MIT-License	commercial	Open Source Apache 2.0	commercial
Cloud-based only Only available as a cloud service	no	yes	no	yes
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	JavaScript		Java	C++
Server operating systems	server-less, requires a JavaScript environment (browser, Node.js)	hosted	Linux OS X Windows	hosted
Data scheme	schema-free	schema-free	schema-free	yes
Typing predefined data types such as float or date	no	Numeric data and Strings	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	no	no	no
Secondary indexes	no	no	no	yes
SQL Support of SQL	Close to SQL99, but no user access control, stored procedures and host language bindings.	no	no	yes
APIs and other access methods	JavaScript API	HTTP REST	HTTP REST	ADO.NET JDBC ODBC
Supported programming languages	JavaScript	Java	Go Java Python Ruby	C# Java PHP
Server-side scripts Stored procedures	no	no	no	Transact SQL
Triggers	yes	no	yes via Hawkular Alerting	no
Partitioning methods Methods for storing different data on different nodes	none		Sharding based on Cassandra	Sharding, horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	none		selectable replication factor based on Cassandra	yes
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	no	no
Consistency concepts Methods to ensure consistency in a distributed system	none	Immediate Consistency	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra	Immediate Consistency
Foreign keys Referential integrity	yes	no	no	no docs.microsoft.com/­en-us/­azure/­synapse-analytics/­sql-data-warehouse/­sql-data-warehouse-table-constraints
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	yes only for local storage and DOM-storage	no	no	ACID
Concurrency Support for concurrent manipulation of data		yes	yes	yes
Durability Support for making data persistent	yes by using IndexedDB, SQL.JS or proprietary FileStorage	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes	no	no
User concepts Access control	no	Access managed on TSDB instance level	no	yes
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More resources
	AlaSQL	Alibaba Cloud TSDB	Hawkular Metrics	Microsoft Azure Synapse Analytics previously named Azure SQL Data Warehouse
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