What is a Persistent Layer?
The persistent layer contains as set of persistent tables that record the full history of changes to the data of the table/query that is the source of the Persistent table. The source could a source...
View ArticleWhy you need a Persistent Layer in your Data Warehouse – Top 5 Reasons
Why you Need a Persistent Layer 1. All history, all of the time, instead of some history some of the time Including a persistent layer in your architecture is a paradigm shift in how you see the data...
View ArticlePersistent Staging Case Study – Employee Fact in Human Resources Data Warehouse
This post is the second in a series of detailed cases studies discussing the ETL strategies that can be used when a Persistent staging layer is included in your Data Warehouse. It’s intended as a...
View ArticleConversations with Data Warehouse Experts – Klaus Lindinger
In this episode, I had the pleasure of speaking with Klaus Lindinger, Digital Innovation Officer at dataWerks & Partner at Infoteam Sales Process Consulting, based in Frankfurt. Over the past 30...
View ArticleCreate a User to run ETL on Azure SQL Data Warehouse – Quick Tip
To run ETL on Azure Data Warehouse, it’s a good idea to create a user in a higher resource class. There are a number of ways to authenticate to Azure DW. See – Controlling and granting database access...
View ArticleHow to handle NULL in Polybase – Quick Tip
How to prepare a file for ingestion into Azure SQL Data Warehouse using Polybase, when there are NULLs in the data? There are only a few web pages that talk about how Polybase handles NULL values… And...
View ArticleAzure Data Warehouse- Alternative for @@ROWCOUNT or ROWCOUNT_BIG – Quick Tip
This quick tip describes how to get Row Count in Azure Data Warehouse. Azure Data Warehouse doesn’t support @@ROWCOUNT or ROWCOUNT_BIG. The link offers an alternative. This article modified that...
View ArticleWe believe in the power of a Data Warehouse!
“The report of my death has been grossly exaggerated.” – Mark Twain. Have you heard “The Data Warehouse is dead”? This claim appears from time to time, usually accompanied by the latest next big thing...
View ArticleMetadata Driven Data Warehouse (MDW) vs Traditional ETL tools
Here at Dimodelo Solutions, we are passionate about data warehouses and the benefits they can bring an organisation. But we are equally passionate about the art and practice (the how) of building these...
View ArticleData Warehouse Automation as a Crucial Part of Your Company’s Digital...
Preparing your business for the digital age can be a daunting task, with so many options available to you. A digital transformation can take many forms depending on your business and the direction you...
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