Simple SQL: Attribute Splitting
If the design of a relational database is wrong, no amount of clever DML SQL will make it work well. Dr. Codd’s Information Principle is that you have, inside the entity tables, the columns that model the attributes of that entity. The columns contain scalar values. Tables that model relationships can have attributes, but they must have references to entities in the schema. You split those attributes at your peril. Joe Celko explains the basics.
Azure DWH part 11: Data Warehouse Migration Utility
There is a new utility to import data from SQL Server on premises or Azure SQL to Azure SQL Data Warehouse (ASDW)
Short Names
Today Steve Jones talks about the short cuts that developers might take, many of which aren't necessarily helpful.
Are your automated tests slowing you down?
Slow, unreliable tests prevent teams doing great work, and make continuous delivery impossible. So what can you do to improve your automated tests?
Getting Started with Azure SQL Data Warehouse - Part 6
Azure SQL Data Warehouse is Microsoft’s new enterprise-class, elastic petabyte-scale, data warehouse service that can scale according to organizational demands in just few minutes. In this installment, Arshad Ali covers the different ways to load data into SQL Data Warehouse.
Cool Projects
This week Steve Jones wants to know what type of really interesting projects you are working on. Is there something you really enjoy and look forward to building?
What do you do when you make a mistake?
We all make mistakes, what you do next is what is important.
Performance Myths: Oversizing string columns
Aaron Bertrand shows a quick demo that illustrates why you should be very careful about oversizing varchar / nvarchar columns.
Blogs
From Planning to Practice: Setting Up Your FinOps Framework
By HeyMo0sh
As someone who works in DevOps, I’m always focused on creating systems that are...
“We love to debate minutiae”
By Brian Kelley
I am guilty as charged. The quote was in reference to how people argue...
Advice I Like: Knots
By Steve Jones
Learn how to tie a bowline knot. Practice in the dark. With one hand....
Forums
Restoring On Top II
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SQL Art 2: St Patrick’s Day in SSMS (Shamrock + Pint + Pixel Text)
Comments posted to this topic are about the item SQL Art 2: St Patrick’s...
Breaking Down Your Work
Comments posted to this topic are about the item Breaking Down Your Work
Question of the Day
Restoring On Top II
I have a database, DNRTest, that has a number of tables and other objects in it. The other day, I was trying to mock up a test and ran this code on the same server:
-- run yesterday CREATE DATABASE DNRTest2 GO USE DNRTest2 GO CREATE TABLE NewTable (id INT) GOToday, I realize that I need a copy of DNRTest for another mockup, and I run this:
-- run today USE Master BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO RESTORE DATABASE DNRTest2 FROM DISK = 'dnrtest.bak' WITH REPLACEWhat happens? See possible answers