DBMS > 4D vs. Adabas vs. Microsoft SQL Server
System Properties Comparison 4D vs. Adabas vs. Microsoft SQL Server
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|Editorial information provided by DB-Engines|
|Name||4D former name: 4th Dimension Xexclude from comparison||Adabas denotes "adaptable data base" Xexclude from comparison||Microsoft SQL Server Xexclude from comparison|
|Description||Application development environment with integrated database management system||OLTP - DBMS for mainframes and Linux/Unix/Windows environments used typically together with the Natural programming platform||Microsofts flagship relational DBMS|
|Primary database model||Relational DBMS||Multivalue DBMS||Relational DBMS|
|Secondary database models||Document store|
|Developer||4D, Inc||Software AG||Microsoft|
|Current release||v18 R5, January 2021||SQL Server 2019, November 2019|
|License Commercial or Open Source||commercial||commercial||commercial restricted free version is available|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Server operating systems||OS X|
|Typing predefined data types such as float or date||yes||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.||yes||no||yes|
|SQL Support of SQL||yes close to SQL 92||yes with add-on product Adabas SQL Gateway||yes|
|APIs and other access methods||ODBC|
RESTful HTTP API by using 4D Mobile
|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||4D proprietary IDE|
|Server-side scripts Stored procedures||yes||in Natural||Transact SQL, .NET languages, R, Python and (with SQL Server 2019) Java|
|Partitioning methods Methods for storing different data on different nodes||none||yes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas Vista||tables can be distributed across several files (horizontal partitioning); sharding through federation|
|Replication methods Methods for redundantly storing data on multiple nodes||Multi-source replication||yes, with add-on product Event Replicator||yes, but depending on the SQL-Server Edition|
|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||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||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||no||yes|
|User concepts Access control||Users and groups||only with OS-specific tools (e.g. IBM RACF, CA Top Secret)||fine grained access rights according to SQL-standard|
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|4D former name: 4th Dimension||Adabas denotes "adaptable data base"||Microsoft SQL Server|
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