When do Statistics get updated?
Statistics objects are important for allowing the SQL Server Optimizer to make good estimates and form efficient execution plans. Related to that it's useful for us to understand when...
2023-06-28
156 reads
Blog Posts
Parameter Sensitive Plan Optimization in SQL Server 2022. What is it and is it any good?
Parameter Sensitive Plan (PSP) optimization is a new feature in SQL Server 2022 that aims to improve the performance of parameterized queries. It is part of the Intelligent Query...
2023-06-26 (first published: 2023-06-08)
330 reads
Using Azure Automation and Runbooks to Run Azure SQL Database Maintenance Tasks
I’ve been using Azure SQL Database for quite some while and have set up it in many various ways to run Ola’s Index Optimize and
The post Using Azure Automation...
2023-06-26 (first published: 2023-06-06)
457 reads
A New Word: Volander
volander: n. the ethereal feeling of looking down at the world through an airplane window, able to catch a glimpse of far-flung places you’d never see in person, free...
2023-06-23
103 reads
ChatGpt Experiments–Getting Documentation
I get asked questions by salespeople all the time. Usually this is because a customer is struggling and I try to educate the salesperson as well as give them...
2023-06-23 (first published: 2023-06-02)
410 reads
Create and Verify Microsoft Fabric Capacity
From June 1, 2023, Microsoft Fabric (preview) capacities are available via the Azure portal. Now, we can provision Microsoft fabric easily using Microsoft PowerBI premium per capacity or using...
2023-06-23 (first published: 2023-06-05)
442 reads
Notes from SQLSaturday Jacksonville 2023
Year 15 for Jacksonville! SQLSaturday Jax was held on May 6 this year, back at the usual location on the campus of the University of North Florida. At the...
2023-06-23 (first published: 2023-06-13)
173 reads
Agile West–How Do I Get Started with Database DevOps
This week I had the chance to deliver a talk at Agile West in Las Vegas. I linked some resources on my blog, and feel free to check them...
2023-06-21
60 reads
Using a tnsnames.ora file with the Microsoft Connector for Oracle in SSIS
One of the nice things about the Microsoft Connector for Oracle is that it doesn’t require installation of an Oracle client. But because of this, you may not have...
2023-06-21 (first published: 2023-06-03)
390 reads
What are Statistics in SQL Server?
Statistics are vitally important in allowing SQL Server to find the most efficient way to execute your queries. In this post we learn more about them, what they are...
2023-06-21
313 reads
Blogs
AI Helps Me with My Sloppiness
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
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...
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