DBMS > AlaSQL vs. Microsoft SQL Server vs. VoltDB
System Properties Comparison AlaSQL vs. Microsoft SQL Server vs. VoltDB
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|Editorial information provided by DB-Engines|
|Name||AlaSQL Xexclude from comparison||Microsoft SQL Server Xexclude from comparison||VoltDB Xexclude from comparison|
|Primary database model||Document store|
|Relational DBMS||Relational DBMS|
|Secondary database models||Document store|
|Developer||Andrey Gershun & Mathias R. Wulff||Microsoft||VoltDB Inc.|
|Current release||SQL Server 2022, November 2022||11.3, April 2022|
|License Commercial or Open Source||Open Source MIT-License||commercial restricted free version is available||Open Source AGPL for Community Edition, commercial license for Enterprise, AWS, and Pro Editions|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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OS X for development
|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|
|SQL Support of SQL||Close to SQL99, but no user access control, stored procedures and host language bindings.||yes||yes only a subset of SQL 99|
Tabular Data Stream (TDS)
RESTful HTTP/JSON API
Erlang not officially supported
|Server-side scripts Stored procedures||no||Transact SQL, .NET languages, R, Python and (with SQL Server 2019) Java||Java|
|Partitioning methods Methods for storing different data on different nodes||none||tables can be distributed across several files (horizontal partitioning); sharding through federation||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||none||yes, but depending on the SQL-Server Edition||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||none||Immediate Consistency|
|Foreign keys Referential integrity||yes||yes||no FOREIGN KEY constraints are not supported|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||yes only for local storage and DOM-storage||ACID||ACID Transactions are executed single-threaded within stored procedures|
|Concurrency Support for concurrent manipulation of data||yes||yes Data access is serialized by the server|
|Durability Support for making data persistent||yes by using IndexedDB, SQL.JS or proprietary FileStorage||yes||yes Snapshots and command logging|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes|
|User concepts Access control||no||fine grained access rights according to SQL-standard||Users and roles with access to stored procedures|
More information provided by the system vendor
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|AlaSQL||Microsoft SQL Server||VoltDB|
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