DBMS > Hawkular Metrics vs. Kingbase vs. SAP Advantage Database Server vs. XTDB

System Properties Comparison Hawkular Metrics vs. Kingbase vs. SAP Advantage Database Server vs. XTDB

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Editorial information provided by DB-Engines
Name	Hawkular Metrics  Xexclude from comparison	Kingbase  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison	XTDB formerly named Crux  Xexclude from comparison
			SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.	An enterprise-class RDBMS compatible with PostgreSQL and Oracle and widely used in China.	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	Time Series DBMS	Relational DBMS	Relational DBMS	Document store
Secondary database models		Document store Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.08 Rank #366   Overall #39   Time Series DBMS	Score 0.50 Rank #257   Overall #119   Relational DBMS		Score 0.18 Rank #332   Overall #46   Document stores
Website	www.hawkular.org	www.kingbase.com.cn	www.sap.com/products/advantage-database-server.html	github.com/­xtdb/­xtdb www.xtdb.com
Technical documentation	www.hawkular.org/­hawkular-metrics/­docs/­user-guide			www.xtdb.com/­docs
Developer	Community supported by Red Hat	BeiJing KINGBASE Information technologies inc.	Sybase, SAP	Juxt Ltd.
Initial release	2014	1999	1993	2019
Current release		V8.0, August 2021		1.19, September 2021
License Commercial or Open Source	Open Source Apache 2.0	commercial	commercial	Open Source MIT License
Cloud-based only Only available as a cloud service	no	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Java	C and Java		Clojure
Server operating systems	Linux OS X Windows	Linux Windows	Linux Windows	All OS with a Java 8 (and higher) VM Linux
Data scheme	schema-free	yes	yes	schema-free
Typing predefined data types such as float or date	yes	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.	no	yes	no	no
Secondary indexes	no	yes	yes	yes
SQL Support of SQL	no	Standard with numerous extensions	yes	limited SQL, making use of Apache Calcite
APIs and other access methods	HTTP REST	ADO.NET gokb JDBC kdbndp ODBC PDI PDO Pro*C psycopg2 QT	.NET Client API ADO.NET JDBC ODBC OLE DB	HTTP REST JDBC
Supported programming languages	Go Java Python Ruby	.Net C C++ Go Java JavaScript (Node.js) Perl PHP Python	Delphi Perl PHP	Clojure Java
Server-side scripts Stored procedures	no	user defined functions	yes	no
Triggers	yes via Hawkular Alerting	yes	yes	no
Partitioning methods Methods for storing different data on different nodes	Sharding based on Cassandra	horizontal partitioning (by range, list and hash) and vertical partitioning	none	none
Replication methods Methods for redundantly storing data on multiple nodes	selectable replication factor based on Cassandra	yes	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	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	yes	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	ACID	ACID	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	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.	no		no caching of (temporary) tables can be configured
User concepts Access control	no	fine grained access rights according to SQL-standard	fine grained access rights according to SQL-standard
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More resources
	Hawkular Metrics	Kingbase	SAP Advantage Database Server former name: Sybase ADS	XTDB formerly named Crux
Recent citations in the news	Waiting for Red Hat OpenShift 4.0? Too late, 4.1 has already arrived… • DEVCLASS 5 June 2019, DevClass provided by Google News	Made in China 2025 is back, with a new name and a focus on database companies – The China Project 19 December 2022, The China Project Opening preparation - Alekhine defense, Saemisch variation 18 April 2016, Chess.com Backup & Recovery Solutions from China 4 August 2022, Хабр Distributed Database Market 2023 Trends with Analysis on Key Players Tencent, OceanBase, PingCAP 8 May 2024, Motions Online provided by Google News	SAP Announces Q3 2023 Results: Asia Pacific and Japan View 19 October 2023, SAP News provided by Google News

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