DBMS > Adabas vs. Drizzle vs. Microsoft SQL Server vs. Riak KV
System Properties Comparison Adabas vs. Drizzle vs. Microsoft SQL Server vs. Riak KV
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|Editorial information provided by DB-Engines|
|Name||Adabas denotes "adaptable data base" Xexclude from comparison||Drizzle Xexclude from comparison||Microsoft SQL Server Xexclude from comparison||Riak KV Xexclude from comparison|
|Drizzle has published its last release in September 2012. The open-source project is discontinued and Drizzle is excluded from the DB-Engines ranking.|
|Description||OLTP - DBMS for mainframes and Linux/Unix/Windows environments used typically together with the Natural programming platform||MySQL fork with a pluggable micro-kernel and with an emphasis of performance over compatibility.||Microsofts relational DBMS||Distributed, fault tolerant key-value store|
|Primary database model||Multivalue DBMS||Relational DBMS||Relational DBMS||Key-value store with links between data sets and object tags for the creation of secondary indexes|
|Secondary database models||Document store|
|Developer||Software AG||Drizzle project, originally started by Brian Aker||Microsoft||Basho Technologies|
|Current release||7.2.4, September 2012||SQL Server 2019, November 2019||2.1.0, April 2015|
|License Commercial or Open Source||commercial||Open Source GNU GPL||commercial restricted free version is available||Open Source Apache version 2, commercial enterprise edition|
|Cloud-based only Only available as a cloud service||no||no||no||no|
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|Server operating systems||BS2000|
|Typing predefined data types such as float or date||yes||yes||yes||no|
|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||yes||no|
|SQL Support of SQL||yes with add-on product Adabas SQL Gateway||yes with proprietary extensions||yes||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
Tabular Data Stream (TDS)
Native Erlang Interface
|Supported programming languages||Natural||C|
|C unofficial client library|
C++ unofficial client library
Clojure unofficial client library
Dart unofficial client library
Go unofficial client library
Groovy unofficial client library
Haskell unofficial client library
Lisp unofficial client library
Perl unofficial client library
Scala unofficial client library
Smalltalk unofficial client library
|Triggers||no||no hooks for callbacks inside the server can be used.||yes||yes pre-commit hooks and post-commit hooks|
|Partitioning methods Methods for storing different data on different nodes||yes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas Vista||Sharding||tables can be distributed across several files (horizontal partitioning); sharding through federation||Sharding no "single point of failure"|
|Replication methods Methods for redundantly storing data on multiple nodes||yes, with add-on product Event Replicator||Master-master replication|
|yes, but depending on the SQL-Server Edition||selectable replication factor|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no||yes|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Eventual Consistency|
|Foreign keys Referential integrity||no||yes||yes||no links between data sets can be stored|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||ACID||no|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||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)||Pluggable authentication mechanisms e.g. LDAP, HTTP||fine grained access rights according to SQL-standard||no|
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|Adabas denotes "adaptable data base"||Drizzle||Microsoft SQL Server||Riak KV|
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