Rotating Keys
This Friday's poll deals with security. Steve Jones asks how often you might rotate those encryption keys to ensure that your systems are secure.
ROW_NUMBER(): An Efficient Alternative to Subqueries
The ROW_NUMBER function has drastically changed the way we can write a number of queries in T-SQL. New author Francis Rodrigues brings us a few places where this function can improve the efficiency of your code.
Brad's Sure DBA Checklist
Sometimes, all a DBA needs, to help with day-to-day work, is a checklist of best-practices and dos and don’ts. It provides a handy reminder. Brad has come up with a new update to his famous checklist...
Microsoft SQL Server vs. MySQL
Is Microsoft SQL Server superior to MySQL or not? What are the pros and cons of using SQL Server over MySQL? Is MySQL mature enough to compete with a big player like Microsoft and Oracle? Can we fairly compare both products?
Working with ADO.Net variables in SSIS scripts
I am always looking to improve the performance of my SSIS packages. I try to do as much work within...
Arrogance Has No Place in Security
Arrogance has no place in assessing threats and attempting to build security to mitigate them.
Automating SQL Server Health Check (SQL Server 2005)
This article explain how to automate SQL Database server health checks, exactly what an ideal DBA desires.
Andy on Twitter
Just prior to the 2009 PASS Summit I posted about giving Twitter a try, and thought I’d report back on...
Are You on Twitter?
Like many busy DBAs, I used to be very dismissive of Twitter. It seemed like a self-indulgent waste of time....
Exceptional PowerShell DBA Pt2 - The Morning Checklist
Laerte Junior takes us further into the world of an Exceptional PowerShell DBA, showing us how he uses PowerShell 2.0 to take all the headaches out of even more of his daily checklist. What could be better than having your morning checklist run itself?
Blogs
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
The Goldilocks problem – Materialized Views
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
Monday Monitor Tips: Virtual Machine Usage and Cost
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
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...
How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
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