DBMS > Amazon Aurora vs. Oracle vs. XTDB
System Properties Comparison Amazon Aurora vs. Oracle vs. XTDB
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|Editorial information provided by DB-Engines|
|Name||Amazon Aurora Xexclude from comparison||Oracle Xexclude from comparison||XTDB formerly named Crux Xexclude from comparison|
|Description||MySQL and PostgreSQL compatible cloud service by Amazon||Widely used RDBMS||A general purpose database with bitemporal SQL and Datalog and graph queries|
|Primary database model||Relational DBMS||Relational DBMS||Document store|
|Secondary database models||Document store||Document store|
Graph DBMS with Oracle Spatial and Graph
RDF store with Oracle Spatial and Graph
Spatial DBMS with Oracle Spatial and Graph
|Current release||21c, January 2021||1.19, September 2021|
|License Commercial or Open Source||commercial||commercial restricted free version is available||Open Source MIT License|
|Cloud-based only Only available as a cloud service||yes||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||C and C++||Clojure|
|Server operating systems||hosted||AIX|
|All OS with a Java 8 (and higher) VM|
|Data scheme||yes||yes Schemaless in JSON and XML columns||schema-free|
|Typing predefined data types such as float or date||yes||yes||yes, extensible-data-notation format|
|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||yes||no|
|SQL Support of SQL||yes||yes with proprietary extensions||limited SQL, making use of Apache Calcite|
|APIs and other access methods||ADO.NET|
Oracle Call Interface (OCI)
|Supported programming languages||Ada|
|Server-side scripts Stored procedures||yes||PL/SQL also stored procedures in Java possible||no|
|Partitioning methods Methods for storing different data on different nodes||horizontal partitioning||Sharding, horizontal partitioning||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication||Multi-source replication|
|yes, each node contains all data|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no can be realized in PL/SQL||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||yes||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID isolation level can be parameterized||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes Version 12c introduced the new option 'Oracle Database In-Memory'|
|User concepts Access control||fine grained access rights according to SQL-standard||fine grained access rights according to SQL-standard|
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|Related products and services|
|3rd parties||Navicat for Oracle improves the efficiency and productivity of Oracle developers and administrators with a streamlined working environment.|
SQLFlow: Provides a visual representation of the overall flow of data. Automated SQL data lineage analysis across Databases, ETL, Business Intelligence, Cloud and Hadoop environments by parsing SQL Script and stored procedure.
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|Amazon Aurora||Oracle||XTDB formerly named Crux|
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