Performance Tuning Using Extended Events: Part 2
Part 2 of identifying performance puning opportunities using Extended Events. Learn how about shredding XML.
Querying database schema using graph tables
SQL Server 2017 introduced the concept of graph data tables as part of the SQL Server database engine. With SQL Server 2019, there were some enhancements like ‘shortest path’ function and constraints on edge tables that make this feature more usable – although it is far from a full-fledged graph database. Graph tables are essentially […]
How to Restore Model Database in SQL Server
In this tip we look at how to restore a missing or corrupt SQL Server model database.
SQL Prompt by Keyboard
Phil Factor shares a handy keyboard shortcut diagram that reveals some of the most useful of Prompt's keyboard shortcuts, and a wallchart showing every piece of Prompt functionality, what it does, where to find it in the various menus, and of course its keyboard shortcut.
Learn to Change
This week Grant talks about the need for change and growth to adapt to the changing world.
Performance Tuning Using Extended Events: Part 3
Identifying Performance Tuning Opportunities Using Extended Events: Part 3 Aggregate Report
Server Hardware or Coffee?
Today Steve Jones looks at the relative cost of hardware and how we sometimes cause ourselves issues by not spending enough.
Controlling how SQL Prompt Formats your Code: The Knobs and Dials
Phil Factor explores and discusses the current state of the art in SQL Formatting, as done automatically by SQL Prompt.
Overview of Azure SQL Database Networking
Learn about the range of connectivity options available for Azure SQL Database deployments.
Finding Non Current Cumulative Updates
A short article to help you quickly find a CU that isn't the latest one.
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