DBMS > Adabas vs. Drizzle vs. Microsoft Azure SQL Data Warehouse vs. Microsoft SQL Server vs. TerarkDB
System Properties Comparison Adabas vs. Drizzle vs. Microsoft Azure SQL Data Warehouse vs. Microsoft SQL Server vs. TerarkDB
|Editorial information provided by DB-Engines|
|Name||Adabas denotes "adaptable data base" Xexclude from comparison||Drizzle Xexclude from comparison||Microsoft Azure SQL Data Warehouse Xexclude from comparison||Microsoft SQL Server Xexclude from comparison||TerarkDB 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.||Elastic, large scale data warehouse service leveraging the broad eco-system of SQL Server||Microsofts relational DBMS||A key-value store forked from RocksDB with advanced compression algorithms. It can be used standalone or as a storage engine for MySQL and MongoDB|
|Primary database model||Multivalue DBMS||Relational DBMS||Relational DBMS||Relational DBMS||Key-value store|
|Secondary database models||Document store|
|Developer||Software AG||Drizzle project, originally started by Brian Aker||Microsoft||Microsoft||Terark|
|Current release||7.2.4, September 2012||SQL Server 2019, November 2019|
|License Commercial or Open Source||commercial||Open Source GNU GPL||commercial||commercial restricted free version is available||commercial restricted open source version available|
|Cloud-based only Only available as a cloud service||no||no||yes||no||no|
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|Server operating systems||BS2000|
|Typing predefined data types such as float or date||yes||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||no||yes||no|
|SQL Support of SQL||yes with add-on product Adabas SQL Gateway||yes with proprietary extensions||yes||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)
|Supported programming languages||Natural||C|
|Server-side scripts Stored procedures||in Natural||no||Transact SQL||Transact SQL, .NET languages, R, Python and (with SQL Server 2019) Java||no|
|Triggers||no||no hooks for callbacks inside the server can be used.||no||yes||no|
|Partitioning methods Methods for storing different data on different nodes||yes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas Vista||Sharding||Sharding, horizontal partitioning||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||Master-master replication|
|yes||yes, but depending on the SQL-Server Edition||none|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes||yes||yes||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||ACID||ACID||no|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes||yes||yes|
|Durability Support for making data persistent||yes||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||yes|
|User concepts Access control||only with OS-specific tools (e.g. IBM RACF, CA Top Secret)||Pluggable authentication mechanisms e.g. LDAP, HTTP||yes||fine grained access rights according to SQL-standard||no|
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|Adabas denotes "adaptable data base"||Drizzle||Microsoft Azure SQL Data Warehouse||Microsoft SQL Server||TerarkDB|
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