DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. DuckDB vs. EJDB vs. MaxDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. DuckDB vs. EJDB vs. MaxDB

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Editorial information provided by DB-Engines

Name

Description

An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum

An embeddable, in-process, column-oriented SQL OLAP RDBMS

Embeddable document-store database library with JSON representation of queries (in MongoDB style)

A robust and reliable RDBMS optimized to run all major SAP solutions

Primary database model

Relational DBMS

Document store

Relational DBMS

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

Score	0.79
Rank	#213	Overall
	#101	Relational DBMS

Score	5.61
Rank	#60	Overall
	#34	Relational DBMS

Score	0.13
Rank	#331	Overall
	#46	Document stores

Score	2.15
Rank	#115	Overall
	#55	Relational DBMS

Website

www.alibabacloud.com/product/hybriddb-postgresql

duckdb.org

github.com/Softmotions/ejdb

maxdb.sap.com

Technical documentation

www.alibabacloud.com/help/en/analyticdb-for-postgresql/latest/product-introduction-overview

duckdb.org/docs

github.com/Softmotions/ejdb/blob/master/README.md

maxdb.sap.com/documentation

Developer

Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group

Softmotions

SAP, acquired from Software AG (Adabas-D) in 1997

Initial release

2016

2018

2012

1984

Current release

1.0.0, June 2024

7.9.10.12, February 2024

License

Commercial or Open Source

commercial

Open Source

MIT License

Open Source

GPLv2

commercial

Limited community edition free

Cloud-based only

Only available as a cloud service

yes

DBaaS offerings (sponsored links)

Database as a Service

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

Implementation language

C++

Server operating systems

hosted

server-less

AIX
HP-UX
Linux
Solaris
Windows

Data scheme

yes

schema-free

yes

Typing

predefined data types such as float or date

yes

string, integer, double, bool, date, object_id

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

yes

APIs and other access methods

JDBC
ODBC

Arrow Database Connectivity (ADBC)
CLI Client
JDBC
ODBC

in-process shared library

ADO.NET
JDBC
ODBC
WebDAV

Supported programming languages

C
Java
Perl
Python
R

C
C#

3rd party driver
C++
Crystal

3rd party driver
Go

3rd party driver
Java
Lisp

3rd party driver
Python
R
Ruby

3rd party driver
Rust
Swift
Zig

3rd party driver

Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby

.Net
C#
Java
Perl
PHP
Python

Server-side scripts

Stored procedures

yes

Triggers

yes

Partitioning methods

Methods for storing different data on different nodes

Sharding

Implicit feature of the cloud service

none

Replication methods

Methods for redundantly storing data on multiple nodes

yes

Implicit feature of the cloud service

none

Source-replica replication

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

typically not needed, however similar functionality with collection joins possible

yes

Transaction concepts

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

ACID

Concurrency

Support for concurrent manipulation of data

yes

yes, multi-version concurrency control (MVCC)

yes

Read/Write Locking

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

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