DBMS > Adabas vs. Dragonfly vs. Oracle Rdb
System Properties Comparison Adabas vs. Dragonfly vs. Oracle Rdb
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|Editorial information provided by DB-Engines|
|Name||Adabas denotes "adaptable data base" Xexclude from comparison||Dragonfly Xexclude from comparison||Oracle Rdb Xexclude from comparison|
|Description||OLTP - DBMS for mainframes and Linux/Unix/Windows environments used typically together with the Natural programming platform||A drop-in Redis replacement that scales vertically to support millions of operations per second and terabyte sized workloads, all on a single instance|
|Primary database model||Multivalue DBMS||Key-value store||Relational DBMS|
|Developer||Software AG||DragonflyDB team and community contributors||Oracle, originally developed by Digital Equipment Corporation (DEC)|
|Current release||1.0, March 2023||22.214.171.124, 2021|
|License Commercial or Open Source||commercial||Open Source BSL 1.1||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||BS2000|
|Linux||HP Open VMS|
|Data scheme||yes||scheme-free||Flexible Schema (defined schema, partial schema, schema free)|
|Typing predefined data types such as float or date||yes||strings, hashes, lists, sets, sorted sets, bit arrays||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||no|
|SQL Support of SQL||yes with add-on product Adabas SQL Gateway||no||yes|
|APIs and other access methods||HTTP API with add-on software Adabas SOA Gateway|
SOAP-based API with add-on software Adabas SOA Gateway
|Proprietary protocol RESP - REdis Serialization Protocol|
|Supported programming languages||Natural||C|
|Server-side scripts Stored procedures||in Natural||Lua|
|Triggers||no||publish/subscribe channels provide some trigger functionality|
|Partitioning methods Methods for storing different data on different nodes||yes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas Vista|
|Replication methods Methods for redundantly storing data on multiple nodes||yes, with add-on product Event Replicator||Source-replica replication|
|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||Eventual Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||Atomic execution of command blocks and scripts||yes, on a single node|
|Concurrency Support for concurrent manipulation of data||yes||yes, strict serializability by the server||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||yes||no|
|User concepts Access control||only with OS-specific tools (e.g. IBM RACF, CA Top Secret)||Password-based authentication|
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|Adabas denotes "adaptable data base"||Dragonfly||Oracle Rdb|
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