DBMS > EJDB vs. Newts
System Properties Comparison EJDB vs. Newts
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|Editorial information provided by DB-Engines|
|Name||EJDB Xexclude from comparison||Newts Xexclude from comparison|
|Description||Embeddable document-store database library with JSON representation of queries (in MongoDB style)||Time Series DBMS based on Cassandra|
|Primary database model||Document store||Time Series DBMS|
|License Commercial or Open Source||Open Source GPLv2||Open Source Apache 2.0|
|Cloud-based only Only available as a cloud service||no||no|
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|Server operating systems||server-less||Linux|
|Typing predefined data types such as float or date||yes string, integer, double, bool, date, object_id||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|
|SQL Support of SQL||no||no|
|APIs and other access methods||in-process shared library||HTTP REST|
|Supported programming languages||Actionscript|
|Server-side scripts Stored procedures||no||no|
|Partitioning methods Methods for storing different data on different nodes||none||Sharding based on Cassandra|
|Replication methods Methods for redundantly storing data on multiple nodes||none||selectable replication factor based on Cassandra|
|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 typically not needed, however similar functionality with collection joins possible||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||no|
|Concurrency Support for concurrent manipulation of data||yes Read/Write Locking||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||no|
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