DBMS > Amazon Aurora vs. LevelDB vs. SAP Advantage Database Server vs. XTDB

System Properties Comparison Amazon Aurora vs. LevelDB vs. SAP Advantage Database Server vs. XTDB

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Editorial information provided by DB-Engines
Name	Amazon Aurora  Xexclude from comparison	LevelDB  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison	XTDB formerly named Crux  Xexclude from comparison
Description	MySQL and PostgreSQL compatible cloud service by Amazon	Embeddable fast key-value storage library that provides an ordered mapping from string keys to string values	Low-cost RDBMS with access to ISAM and FoxPro data structures	A general purpose database with bitemporal SQL and Datalog and graph queries
Primary database model	Relational DBMS	Key-value store	Relational DBMS	Document store
Secondary database models	Document store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 12.86 Rank #45   Overall #29   Relational DBMS	Score 3.03 Rank #101   Overall #19   Key-value stores	Score 3.59 Rank #92   Overall #48   Relational DBMS	Score 0.00 Rank #356   Overall #47   Document stores
Website	aws.amazon.com/­rds/­aurora	github.com/­google/­leveldb	www.sap.com/­products/­advantage-database-server.html	github.com/­xtdb/­xtdb xtdb.com
Technical documentation	docs.aws.amazon.com/­AmazonRDS/­latest/­AuroraUserGuide/­CHAP_Aurora.html	github.com/­google/­leveldb/­blob/­master/­doc/­index.md		xtdb.com/­docs
Developer	Amazon	Google	Sybase, SAP	Juxt Ltd.
Initial release	2015	2011	1993	2019
Current release		1.23, February 2021		1.19, September 2021
License Commercial or Open Source	commercial	Open Source BSD	commercial	Open Source MIT License
Cloud-based only Only available as a cloud service	yes	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		C++		Clojure
Server operating systems	hosted	Illumos Linux OS X Windows	Linux Windows	All OS with a Java 8 (and higher) VM Linux
Data scheme	yes	schema-free	yes	schema-free
Typing predefined data types such as float or date	yes	no	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	no	no	no
Secondary indexes	yes	no	yes	yes
SQL Support of SQL	yes	no	yes	limited SQL, making use of Apache Calcite
APIs and other access methods	ADO.NET JDBC ODBC		.NET Client API ADO.NET JDBC ODBC OLE DB	HTTP REST JDBC
Supported programming languages	Ada C C# C++ D Delphi Eiffel Erlang Haskell Java JavaScript (Node.js) Objective-C OCaml Perl PHP Python Ruby Scheme Tcl	C++ Go Java 3rd party binding JavaScript (Node.js) 3rd party binding Python 3rd party binding	Delphi Perl PHP	Clojure Java
Server-side scripts Stored procedures	yes	no	yes	no
Triggers	yes	no	yes	no
Partitioning methods Methods for storing different data on different nodes	horizontal partitioning	none	none	none
Replication methods Methods for redundantly storing data on multiple nodes	Source-replica replication	none	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication	yes, each node contains all data
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	Immediate Consistency
Foreign keys Referential integrity	yes	no	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no	ACID	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes with automatic compression on writes	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		no caching of (temporary) tables can be configured
User concepts Access control	fine grained access rights according to SQL-standard	no	fine grained access rights according to SQL-standard
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More resources
	Amazon Aurora	LevelDB	SAP Advantage Database Server former name: Sybase ADS	XTDB formerly named Crux
DB-Engines blog posts	Cloud-based DBMS's popularity grows at high rates 12 December 2019, Paul Andlinger The popularity of cloud-based DBMSs has increased tenfold in four years 7 February 2017, Matthias Gelbmann Amazon - the rising star in the DBMS market 3 August 2015, Matthias Gelbmann show all