SQL Server Storage Internals Part 5 - Properties of Clustered and Non Clustered Index pages
In this article, I thought of explaining different types and levels of index pages. but while start preparing for that, I realise...
Strike Force
Would you want to be part of a Strike Force or "A-Team" in IT? Steve Jones thinks most of us would rather just do a good job and go home.
The Twelve Days of (SQL) Christmas
Once upon a time a group of twelve bloggers agreed to each pick a post (or posts) they found interesting...
Resolve to Plan Your Year
Today we have a guest editorial from Andy Warren that asks you to look forward to the next year and think about your future.
Slipstreaming SP\CU During Setup
This article shows how to slipstream the SP and CU during the SQL Server setup process.
The Professional Student
This week Steve Jones talks about the need for people working in technology to be professional students. Get a few ideas of what you can learn this week from Database Weekly.
TSQL Challenge 46 - Remove leading occurrences of the first character
This challenge is a slightly enhanced version of the ‘remove leading zeros’ problem
SQL Server Storage Internals Part 2 - Partitions and Allocation Units
Before moving on to see anatomy of different types of pages, lets spend some time to understand
The relationship among sys.objects,...
Using INSERT / OUTPUT in a SQL Server Transaction
Frequently I find myself in situations where I need to insert records into a table in a set-based operation wrapped inside of a transaction where secondarily, and within the same transaction, I spawn-off subsequent inserts into related tables where I need to pass-in key values that were the outcome of the initial INSERT command. Thanks to a Transact/SQL enhancement in SQL Server, this just became much easier and can be done in a single statement... WITHOUT A TRIGGER!
Connection Strings 101
This article introduces connection strings and suggests using MDAC to easily write efficient connection strings for those new to SQL Integration.
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...
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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...
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