DBMS > Adabas vs. VelocityDB
System Properties Comparison Adabas vs. VelocityDB
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|Editorial information provided by DB-Engines|
|Name||Adabas denotes "adaptable data base" Xexclude from comparison||VelocityDB Xexclude from comparison|
|Description||OLTP - DBMS for mainframes and Linux/Unix/Windows environments used typically together with the Natural programming platform||A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)|
|Primary database model||Multivalue DBMS||Graph DBMS|
Object oriented DBMS
|Developer||Software AG||VelocityDB Inc|
|License Commercial or Open Source||commercial||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||BS2000|
|Any that supports .NET|
|Typing predefined data types such as float or date||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|
|SQL Support of SQL||yes with add-on product Adabas SQL Gateway||no|
|APIs and other access methods||HTTP API with add-on software Adabas SOA Gateway|
SOAP-based API with add-on software Adabas SOA Gateway
|Supported programming languages||Natural||.Net|
|Server-side scripts Stored procedures||in Natural||no|
|Triggers||no||Callbacks are triggered when data changes|
|Partitioning methods Methods for storing different data on different nodes||yes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas Vista||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||yes, with add-on product Event Replicator|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID|
|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||yes|
|User concepts Access control||only with OS-specific tools (e.g. IBM RACF, CA Top Secret)||Based on Windows Authentication|
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|Adabas denotes "adaptable data base"||VelocityDB|
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