Dimensional Modelling Case Study Part 1 - Age Group
Learn how you can handle dimensional modeling in a data warehouse when your data uses different categorization for ages.
2024-01-12
2,261 reads
Data Warehouse
Time-Series Data Analysis with Apache Druid
Learn the basics of Apache Druid and how it can be used to ingest data into a data lake.
2023-11-10
14,166 reads
Upserts in Amazon Redshift
This article discusses different approaches of Upserts (update+inserts) in Amazon Redshift
2023-08-09
26,768 reads
A Overview of Amazon Redshift
This article gives an overview of Amazon Redshift, the cloud data warehouse in AWS.
2023-07-24
25,373 reads
How do you secure sensitive data in a modern Data Warehouse?
In 2019 Canadian Broadcasting Corporation (CBC) news reported a massive data breach at the Desjardins Group, which is a Canadian financial service cooperative and the largest federation of credit unions in North America. The report indicated, a "malicious" employee copied sensitive personal information collected by Desjardins from their data warehouse. The data breach compromised the […]
2022-03-30
2,927 reads
Infrastructure Planning for a SQL Server Data Warehouse
In this tip we look at some things you should think about when planning for a SQL Server data warehouse.
2019-02-12
2,879 reads
Modern Data Warehouse Design Pattern – Part I
The modern data warehouse design helps in building a hub for all types of data to initiate integrated and transformative solutions. To achieve these goals and to support modern designs, Microsoft has introduced a set of fully managed, cloud-based services that not only support modern data warehouse design patterns but also provide the advantages of inbuilt scalability, high availability, good performance, and flexibility.
2018-09-04
3,797 reads
Using the DbFit Framework for Data Warehouse Regression Testing
It is ironic that the users of database application need to rely on the very technologists that created the system to then devise and run their acceptance tests. Surely someone has devised a test system for databases that is simple enough for ordinary tech-savvy people to use and for them to create the tests? Yes they have. Fitnesse DbFit is a mature product that can, and does, test SQL Server databases, and Nat Sundar explains how to set it up and do it.
2017-05-18
3,142 reads
Mastering Dimensions of Time
A method to create and populate Date and Time dimension tables for a data warehouse project.
2014-01-21
12,457 reads
Data Warehouse Development: Version 0
What do you do first when developing a data warehouse? MVP Andy Leonard brings us a look at the foundation he uses, which might surprise you.
2011-04-07
9,070 reads
Blogs
Redgate Summit Comes to the Windy City
By Steve Jones
I love Chicago. I went to visit three times in 2023: a Redgate event,...
Non-Functional Requirements
By Brian Kelley
I have found that non-functional requirements (NFRs) can be hard to define for a...
Techorama 2024 – Slides
You can find the slidedeck for my Techorama session “Microsoft Fabric for Dummies” on...
Forums
AG listener cant be removed
Testing with AG on Linux with Cluster=NONE. it was all going ok and as...
Remove comma inside Comma Delimited File csv in SSIS Using Script task
Hi, I have two tables: one for headers with 9 fields and another for...
Inserting 100K rows Performance - Baseline Performance
We're trying to understand how quick new versions of SQL server can be. Obviously...
Question of the Day
The "ORDER BY" clause behavior
Let’s consider the following script that can be executed without any error on both SQL Sever and PostgreSQL. We define the table t1 in which we insert three records:
create table t1 (id int primary key, city varchar(50)); insert into t1 values (1, 'Rome'), (2, 'New York'), (3, NULL);If we execute the following query, how will the records be sorted in both environments?
select city from t1 order by city;See possible answers