DBMS > Adabas vs. Google Cloud Spanner vs. Oracle Rdb
System Properties Comparison Adabas vs. Google Cloud Spanner vs. Oracle Rdb
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|Editorial information provided by DB-Engines|
|Name||Adabas denotes "adaptable data base" Xexclude from comparison||Google Cloud Spanner Xexclude from comparison||Oracle Rdb Xexclude from comparison|
|Description||OLTP - DBMS for mainframes and Linux/Unix/Windows environments used typically together with the Natural programming platform||A horizontally scalable, globally consistent, relational database service. It is the externalization of the core Google database that runs the biggest aspects of Google, like Ads and Google Play.|
|Primary database model||Multivalue DBMS||Relational DBMS||Relational DBMS|
|Developer||Software AG||Oracle, originally developed by Digital Equipment Corporation (DEC)|
|Current release||18.104.22.168, 2021|
|License Commercial or Open Source||commercial||commercial||commercial|
|Cloud-based only Only available as a cloud service||no||yes||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||BS2000|
|hosted||HP Open VMS|
|Data scheme||yes||yes||Flexible Schema (defined schema, partial schema, schema free)|
|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.||no||no||no|
|SQL Support of SQL||yes with add-on product Adabas SQL Gateway||yes Query statements complying to ANSI 2011||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
|gRPC (using protocol buffers) API|
JDBC At present, JDBC supports read-only queries. No support for DDL or DML statements.
RESTful HTTP API
|Supported programming languages||Natural||Go|
|Server-side scripts Stored procedures||in Natural||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|
|Replication methods Methods for redundantly storing data on multiple nodes||yes, with add-on product Event Replicator||Multi-source replication with 3 replicas for regional instances.|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||yes using Google Cloud Dataflow||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes by using interleaved tables, this features focuses more on performance improvements than on referential integrity||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID Strict serializable isolation||yes, on a single node|
|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||no|
|User concepts Access control||only with OS-specific tools (e.g. IBM RACF, CA Top Secret)||Access rights for users, groups and roles based on Google Cloud Identity and Access Management (IAM)|
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|Adabas denotes "adaptable data base"||Google Cloud Spanner||Oracle Rdb|
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