DBMS > AlaSQL vs. Graph Engine vs. Snowflake
System Properties Comparison AlaSQL vs. Graph Engine vs. Snowflake
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|Editorial information provided by DB-Engines|
|Name||AlaSQL Xexclude from comparison||Graph Engine former name: Trinity Xexclude from comparison||Snowflake Xexclude from comparison|
|Primary database model||Document store|
|Developer||Andrey Gershun & Mathias R. Wulff||Microsoft||Snowflake Computing Inc.|
|License Commercial or Open Source||Open Source MIT-License||Open Source MIT License||commercial|
|Cloud-based only Only available as a cloud service||no||no||yes|
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|Data scheme||schema-free||yes||yes support of semi-structured data formats (JSON, XML, Avro)|
|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||no||yes|
|SQL Support of SQL||Close to SQL99, but no user access control, stored procedures and host language bindings.||no||yes|
|Server-side scripts Stored procedures||no||yes||user defined functions|
|Triggers||yes||no||no similar concept for controling cloud resources|
|Partitioning methods Methods for storing different data on different nodes||none||horizontal partitioning||yes|
|Replication methods Methods for redundantly storing data on multiple nodes||none||yes|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||none||Immediate Consistency|
|Foreign keys Referential integrity||yes||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||yes only for local storage and DOM-storage||no||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||optional: either by committing a write-ahead log (WAL) to the local persistent storage or by dumping the memory to a persistent storage||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes||no|
|User concepts Access control||no||Users with fine-grained authorization concept, user roles and pluggable authentication|
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|AlaSQL||Graph Engine former name: Trinity||Snowflake|
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