DBMS > Adabas vs. EJDB vs. MonetDB
System Properties Comparison Adabas vs. EJDB vs. MonetDB
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|Editorial information provided by DB-Engines|
|Name||Adabas denotes "adaptable data base" Xexclude from comparison||EJDB Xexclude from comparison||MonetDB Xexclude from comparison|
|Description||OLTP - DBMS for mainframes and Linux/Unix/Windows environments used typically together with the Natural programming platform||Embeddable document-store database library with JSON representation of queries (in MongoDB style)||A relational database management system that stores data in columns|
|Primary database model||Multivalue DBMS||Document store||Relational DBMS|
|Secondary database models||Document store|
|Developer||Software AG||Softmotions||MonetDB BV|
|Current release||Jul2021-SP2, July 2021|
|License Commercial or Open Source||commercial||Open Source GPLv2||Open Source Mozilla Public License 2.0|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Server operating systems||BS2000|
|Typing predefined data types such as float or date||yes||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||yes with add-on product Adabas SQL Gateway||no||yes SQL 2003 with some extensions|
|APIs and other access methods||HTTP API with add-on software Adabas SOA Gateway|
SOAP-based API with add-on software Adabas SOA Gateway
|in-process shared library||JDBC|
native C library MAPI library (MonetDB application programming interface)
|Supported programming languages||Natural||Actionscript|
|Server-side scripts Stored procedures||in Natural||no||yes, in SQL, C, R|
|Partitioning methods Methods for storing different data on different nodes||yes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas Vista||none||Sharding via remote tables|
|Replication methods Methods for redundantly storing data on multiple nodes||yes, with add-on product Event Replicator||none||none Source-replica replication available in experimental status|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency|
|Foreign keys Referential integrity||no||no typically not needed, however similar functionality with collection joins possible||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes Read/Write Locking||yes|
|Durability Support for making data persistent||yes||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||only with OS-specific tools (e.g. IBM RACF, CA Top Secret)||no||fine grained access rights according to SQL-standard|
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|Adabas denotes "adaptable data base"||EJDB||MonetDB|
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