DBMS > Blueflood vs. UniData,UniVerse
System Properties Comparison Blueflood vs. UniData,UniVerse
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|Editorial information provided by DB-Engines|
|Name||Blueflood Xexclude from comparison||UniData,UniVerse Xexclude from comparison|
|Description||Scalable TimeSeries DBMS based on Cassandra||MultiValue database and application server with SQL mapping layer and meta database capabilities|
|Primary database model||Time Series DBMS||Multivalue DBMS|
|License Commercial or Open Source||Open Source Apache 2.0||commercial|
|Cloud-based only Only available as a cloud service||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||Linux|
|Data scheme||predefined scheme||schema-free|
|Typing predefined data types such as float or date||yes||optional|
|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|
|SQL Support of SQL||no||yes|
|APIs and other access methods||HTTP REST||Java API JPA|
RESTful HTTP API
|Supported programming languages||.Net|
Basic U2 Basic
|Server-side scripts Stored procedures||no||yes|
|Triggers||no||yes U2 Basic|
|Partitioning methods Methods for storing different data on different nodes||Sharding based on Cassandra||none|
|Replication methods Methods for redundantly storing data on multiple nodes||selectable replication factor based on Cassandra||Source-replica replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency based on Cassandra|
Immediate Consistency based on Cassandra
|Foreign keys Referential integrity||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID configurable|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no|
|User concepts Access control||no||Access rights according to SQL-standard and operating system based|
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