DBMS > Kingbase vs. Memcached vs. SAP HANA vs. VelocityDB

System Properties Comparison Kingbase vs. Memcached vs. SAP HANA vs. VelocityDB

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Editorial information provided by DB-Engines

Name

Description

An enterprise-class RDBMS compatible with PostgreSQL and Oracle and widely used in China.

In-memory key-value store, originally intended for caching

In-memory, column based data store. Available as appliance or cloud service

A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)

Primary database model

Relational DBMS

Key-value store

Relational DBMS

Graph DBMS
Object oriented DBMS

Secondary database models

Document store
Spatial DBMS

Document store
Graph DBMS

with SAP Hana, Enterprise Edition
Spatial DBMS

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	0.37
Rank	#260	Overall
	#121	Relational DBMS

Score	24.95
Rank	#33	Overall
	#4	Key-value stores

Score	55.09
Rank	#21	Overall
	#13	Relational DBMS

Score	0.03
Rank	#336	Overall
	#35	Graph DBMS
	#17	Object oriented DBMS

Website

www.kingbase.com.cn

www.memcached.org

www.sap.com/products/hana.html

velocitydb.com

Technical documentation

bbs.kingbase.com.cn/chess_wenku-index.html

github.com/memcached/memcached/wiki

help.sap.com/hana

velocitydb.com/UserGuide

Developer

BeiJing KINGBASE Information technologies inc.

Danga Interactive

originally developed by Brad Fitzpatrick for LiveJournal

SAP

VelocityDB Inc

Initial release

1999

2003

2010

2011

Current release

V8.0, August 2021

1.6.15, March 2022

2.0 SPS05 (June 26, 2020), June 2020

7.x

License

Commercial or Open Source

commercial

Open Source

BSD license

commercial

Cloud-based only

Only available as a cloud service

also available as a cloud based service

DBaaS offerings (sponsored links)

Database as a Service

Providers of DBaaS offerings, please contact us to be listed.

Implementation language

C and Java

Server operating systems

Linux
Windows

FreeBSD
Linux
OS X
Unix
Windows

Appliance or cloud-service

Any that supports .NET

Data scheme

yes

schema-free

yes

Typing

predefined data types such as float or date

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

Secondary indexes

yes

SQL

Support of SQL

Standard with numerous extensions

yes

APIs and other access methods

ADO.NET
gokb
JDBC
kdbndp
ODBC
PDI
PDO
Pro*C
psycopg2
QT

Proprietary protocol

JDBC
ODBC

.Net

Supported programming languages

.Net
C
C++
Go
Java
JavaScript (Node.js)
Perl
PHP
Python

.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby

.Net

Server-side scripts

Stored procedures

user defined functions

SQLScript, R

Triggers

yes

Callbacks are triggered when data changes

Partitioning methods

Methods for storing different data on different nodes

horizontal partitioning (by range, list and hash) and vertical partitioning

none

yes

Sharding

Replication methods

Methods for redundantly storing data on multiple nodes

yes

none

Repcached, a Memcached patch, provides this functionallity

yes

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Foreign keys

Referential integrity

yes

Transaction concepts

Support to ensure data integrity after non-atomic manipulations of data

ACID

Concurrency

Support for concurrent manipulation of data

yes

Durability

Support for making data persistent

yes

In-memory capabilities

Is there an option to define some or all structures to be held in-memory only.

yes

User concepts

Access control

fine grained access rights according to SQL-standard

yes

using SASL (Simple Authentication and Security Layer) protocol

yes

Based on Windows Authentication

More information provided by the system vendor

Specific characteristics

An enterprise-class RDBMS compatible with PostgreSQL and Oracle. It has the following...
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Competitive advantages

Complete database management platform with Integrated Development Environment Tool,...
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Typical application scenarios

New applications for transactional and mixed workloads that need to integrate with...
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Key customers

The main customers are: China National Petroleum Corporation China Petrochemical...
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Market metrics

At present, the main market is in China, but expansion to the international market...
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Licensing and pricing models

Business license. Various sales modes: for example, sales by set, sales by CPU quantity,...
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