1. Cloud AnalyticDB for PostgreSQL :
The AnalyticDB is an online analytical processing database system on Alibaba cloud. It offers both PostgreSQL and MySQL versions. The AnalyticDB for PostgreSQL is an online MPP (Massively Parallel Processing) data warehousing service based on the Greenplum Open Source Database program and is enhanced with some in-depth extensions by Alibaba Cloud.
2. AllegroGraph :
The AllegroGraph is a high performance, persistent RDF store with additional support for Graph DBMS. It operates as a Document Store designed for storing, retrieving and managing document-oriented information, in JSON-LD format. The first version of AllegroGraph was release in 2004.
Difference between Alibaba Cloud AnalyticDB for PostgreSQL and AllegroGraph :
|S.NO.||Alibaba Cloud AnalyticDB for PostgreSQL||ALLEGROGRAPH|
|1.||It was developed By Alibaba, Pivotal Software Inc. and PostgreSQL Global Development Group in 2016.||It was developed By Franz Inc. in 2004.|
|2.||It is an online MPP (Massively Parallel Processing) data warehousing service based on Greenplum.||It is a high performance, persistent RDF store with additional support for Graph DBMS.|
|3.||In Alibaba Cloud AnalyticDB for PostgreSQL there are hosted server operating systems.||Server operating systems for AllegroGraph are linux, OS X and Windows.|
|4.||The license of Alibaba Cloud AnalyticDB for PostgreSQL is commercial.||The license of AllegroGraph is also commercial.|
|5.||It supports XML Format.||It does not support XML Format.|
|7.||It supports partitioning methods.||The partitioning can be done with Federation.|
|8.||It supports SQL query language.||It supports SPARQL as query language.|
|9.||It supports replication methods.||It support two replication methods : Master-Slave Replication and Multi-Master Replication.|
|10.||AnalyticDB for PostgreSQL provides the concept of Referential Integrity. Hence, there are Foreign Keys.||AllegroGraph does not provide the concept of Referential Integrity. Hence, no Foreign Keys.|
|11.||It does not support in-memory capabilities.||It also does not support in-memory capabilities.|
|12.||It does not offer any API for user-defined Map/Reduce methods.||It also does not offer any API for user-defined Map/Reduce methods.|
|13.||It is available as a cloud service.||It is not available as a cloud service.|
|14.||Programming languages supported are C, Java, Perl, Python and R.||Programming languages supported are C#, Clojure, Java, Lisp, Perl, Python, Ruby and Scala.|
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