DBMS > Adabas vs. Drizzle vs. Microsoft SQL Server vs. UniData,UniVerse
System Properties Comparison Adabas vs. Drizzle vs. Microsoft SQL Server vs. UniData,UniVerse
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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||UniData,UniVerse 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||MultiValue database and application server with SQL mapping layer and meta database capabilities|
|Primary database model||Multivalue DBMS||Relational DBMS||Relational DBMS||Multivalue DBMS|
|Secondary database models||Document store|
|Developer||Software AG||Drizzle project, originally started by Brian Aker||Microsoft||Rocket Software|
|Current release||7.2.4, September 2012||SQL Server 2019, November 2019|
|License Commercial or Open Source||commercial||Open Source GNU GPL||commercial restricted free version is available||commercial|
|Cloud-based only Only available as a cloud service||no||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||BS2000|
|Typing predefined data types such as float or date||yes||yes||yes||optional|
|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|
|SQL Support of SQL||yes with add-on product Adabas SQL Gateway||yes with proprietary extensions||yes||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
Tabular Data Stream (TDS)
|Java API JPA|
RESTful HTTP API
|Supported programming languages||Natural||C|
Basic U2 Basic
|Server-side scripts Stored procedures||in Natural||no||Transact SQL, .NET languages, R, Python and (with SQL Server 2019) Java||yes|
|Triggers||no||no hooks for callbacks inside the server can be used.||yes||yes U2 Basic|
|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||none|
|Replication methods Methods for redundantly storing data on multiple nodes||yes, with add-on product Event Replicator||Multi-source replication|
|yes, but depending on the SQL-Server Edition||Source-replica replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes||yes||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||ACID||ACID configurable|
|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||Access rights according to SQL-standard and operating system based|
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|Adabas denotes "adaptable data base"||Drizzle||Microsoft SQL Server||UniData,UniVerse|
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