Department of Redundancy Department
Ever wonder all the reasons that we use databases instead of file systems? While we don’t think of it too much anymore, the first reason that databases came into existence was to remove redundancies.
2024-04-12
Database modelling
Dimensional Modeling Case Study Part 2 - Days Dimension
Learn how you can model days in a dimension that might need to be aggregated in different ways for your data warehouse operations.
2024-02-07
1,813 reads
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
2,233 reads
Having Data Modeling Standards
Today Steve talks about data modeling and how standards can transfer knowledge between developers.
2023-11-22
348 reads
Cone of Uncertainty
Our design and modeling is often done with some level of uncertainty. Steve has a few guidelines today.
2022-10-26
157 reads
2020-09-15
175 reads
Database Modeling - Relationships
A proper relationship between two people, places or things improves the communication between them. In every real-world based application, this logic holds and a database is no different. This article discusses the different relationship types possible between database objects. The designing of these relationships between them is called modeling, and the three types of relationships […]
2020-08-31
7,077 reads
Five Online Database Modelling Services
To design, or redesign, a database of any complexity, the Entity-Relationship modelling tool becomes essential. The specialized tools that have dominated the industry for a long while are expensive and are installed on a workstation. Now that browser technology has progressed so rapidly, the online database modelling tools have become viable and are starting to attract the attention of database designers. Are they good enough to use now? Robert Sheldon finds out.
2016-03-11
4,547 reads
Blogs
How Long Will It Take to Learn SQL? The Truth Might Surprise You
In today's data-driven world, SQL (Structured Query Language) is a blazing-hot skill. It's your...
Flying Halfway Around the World to Australia
By Steve Jones
I leave tonight for Australia. I was in London 3 days ago, so this...
Dealing with Change – Two Resources
By Brian Kelley
As I look at the state of information technology today, I see one constant:...
Forums
Db growth rate
Sample data: jan 10gb feb 15gb mar 16gb april 14gb(truncate data) may 18gb june...
Reference for doing Data Warehousing in SQL Server
Everybody (well almost) knows that if you want to learn the design patterns for...
Question of the Day
Using Table Hints in a Query
How many table hints can I include in a query?
See possible answers