A Beginners Look at Hadoop
Hadoop has been making a lot of noise in the Big Data world. Despite my lack of Linux experience I decided to take the plunge and this is what I found.
Getting Started with HDInsight - Part 3 - Creating an HDInsight Cluster in Microsoft Azure Cloud
In this tip we will look at two different ways of creating an HDInsight Cluster: Creating an HDInsight Cluster through Azure Management Portal, and creating an HDInsight Cluster through Windows Azure PowerShell.
The 2015 Plan
As we look to the new year, Steve Jones wonders what improvements you might be planning for your career.
SQL Server Data Import System to Alert For Missed Imports
In this tip Tim Smith looks at how to set up a system that allows automatic notification if a process doesn't import new data into SQL Server.
Database Build Automation – The First Step to Continuous Integration
So you're keen to take the first steps to the continuous integration of your database. You have to start by getting your database into source control. You can then begin to automate your build processes in order to generate and test a database. By doing this regularly, you'll be much better prepared for the deployment process because you'll have solved integration issues when they happen, and facilitated the broader testing process.
SQL Server 2014 Checklist for Performance
A checklist to help optimize the performance of SQL Server
Blogs
AI Helps Me with My Sloppiness
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
WITH clause gets a 26ai boost!
By way of background, a while back I did video called “My New Favourite...
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
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Question of the Day
Getting the Average
I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers