Sirius Blog: You ask, we answer!

  • What is ERP?

    A Quick intro for the SME as to what ERP is, and why might it be useful for a growing business. A guest post from Sirius partner uzERP, experts in Open Source ERP for the Enterprise.


    There are many essential processes involved in running any organisation, no matter its size....

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  • PostgreSQL: New features in Version 13 - Index Deduplication

    With the second beta release of PostgreSQL 13, we now have first sight of the full range of new features the PostgreSQL and Open Source world is getting excited about! Naturally, Sirius engineers are getting deep into them, and we'd like to share these exciting new features with you!

    Today’s post will examine one of the new features of PostgreSQL 13 – B-tree index de-duplication.

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  • Microsoft SQL Server to PostgreSQL Migration using Pgloader


    To continue our migration series, today’s post will focus on pgloader. Pgloader is another Open Source data migration utility for PostgreSQL from MySQL and SQL Server. Today’s demo will migrate a sample database (StackOverflow) from MS SQL Server 2019 to Postgresql v10.

    StackOverflow contains the following tables

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  • Oracle to PostgreSQL Migration using ORA2PG

    One of the hottest topics in the PostgreSQL world is migration, and especially from Oracle to PostgreSQL.

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  • An Introduction to PostgreSQL - Part 2

    In Part 1 we looked at how PostgreSQL handles data concurrency, MVCC, and learned that understanding MVCC is critical for understanding PostgreSQL. Part 2 continues with MVCC and focuses on concurrent access.

    Let's start by reviewing the four core characteristics of a database transaction (which gives us the acronym ACID):

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