What's a Passive Server?
Today Steve Jones talks about licensing and the complexity if brings in various scenarios. Do your passive servers have to be licensed? What is the definition of "passive"?
7 Things that High Availability is Not
Wesley has heard High Availablity touted as all sorts of technological cure-all for busy SysAdmins and DBAs, and now he's taking a stand against it. There are a range of things that High Availability is regularly confused with (either deliberately or innocently), and Wesley's clearing it all up
A Great Deal of Hot Air
Even though neither the science nor politics of climate change is fully established yet, the legislators and bureaucrats have smelt an opportunity to further tighten their grip on IT. A sign of things to come is the EU’s Code of Conduct for Data Centers on Energy Efficiency.
It's Almost Always the Humans
Today we have a reprint of an editorial from Sept 19, 2005 as Steve Jones is on vacation. In this one, Steve Jones reminds companies that saving money sometimes on Customer Service isn't as easy as you think.
Which of Your Stored Procedures are Using the Most Resources?
Dynamic Management Views and Functions aren't always easy to understand. However, they are the easiest way of finding out which of your stored procedures are using up the most resources. Greg takes the time to explain how and why these DMVs and DMFs get their information. Suddenly, it all gets clearer.
How To Get Table Row Counts Quickly And Painlessly
Use sysindexes\DMVs insead of select count(*) to retreive table row counts
31 Days of SSIS – Generating Row Numbers (23/31)
31 Days of SSIS
It’s Sunday afternoon and a good time to be putting up post twenty-three for the 31 Days...
Internals and Performance class in Dallas
At last, my blog is starting to pay real dividends. Not only do I get the opportunity to publish my...
Showplan Operator of the Week - Merge Interval
When Fabiano agreed to undertake the epic task of describing each showplan operator, none of us quite predicted the interesting ways that the series helps to understand how the query optimizer works. With the Merge Interval, Fabiano comes up with some insights about the way that the Query optimizer handles overlapping ranges efficiently.
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