One SSMS Trick That Will Make You a Faster Query Builder
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Here's the scenario: you copy and paste some code into a query you are building. A few minutes later you need that same snippet...
2017-07-25
8 reads
Bert Wagner
How to Use SQL Temporal Tables For Easy Point-In-Time Analysis
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Have you ever needed to look at what data in a table used to look like?
If you have, it probably took a knuckle-cracking filled...
2017-07-20
13 reads
Here's a Quick Way To Generate a Running Total in SQL Server
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Historically it's been difficult to accomplish certain tasks in SQL Server.
Probably the most annoying problem I had to do regularly before SQL Server 2012...
2017-07-18
27 reads
My Most Embarrassing SQL Moment
T-SQL Tuesday #92: Lessons Learned the Hard Way
This post is a response to this month's T-SQL Tuesday prompt. T-SQL Tuesday was created by Adam Machanic and is a way for...
2017-07-11
11 reads
How to Automatically Purge Historical Data From a Temporal Table
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Temporal Tables are awesome.
They make analyzing time-series data a cinch, and because they automatically track row-level history, rolling-back from an "oops" scenario doesn't mean...
2017-07-04
27 reads
How to Put SQL Column Names Onto Multiple Lines in SSMS
SQL in 60 Seconds is a series where I share SQL tips and tricks that you can learn and start using in less than a minute.
Watch this week's video...
2017-06-27
19 reads
5 Business Problems You Can Solve With Temporal Tables
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It's 4:30 pm on Friday and Mr. Manager comes along to tell you that he needs you to run some important ad-hoc analysis for...
2017-06-20
24 reads
Behind the Scenes of an Online Presentation
Last week I presented my session "DBAs vs Developers: JSON in SQL Server 2016" at the online GroupBy Conference.
As I prepared for the event, I thought about all of...
2017-06-13
12 reads
5 Things You Need to Do When Performance Testing JSON in SQL and C#
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Want to learn more about using JSON in SQL Server? Watch me present at the online GroupBy conference on June 9, 2017 at 8am.
I've...
2017-06-06
25 reads
How To Roll-Back Data in a Temporal Table
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So you've started using temporal tables because they make your point-in-time analysis queries super easy.
Your manager is happy because you're getting historical data to...
2017-05-30
36 reads
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...
Alamat Kontak Resmi BCA KCP Kertajaya ??/Wa 08218154393
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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