What steps are there to move to safe automated database deployments?
Database deployments are scary, you have all this data and if you drop the wrong table, run the wrong delete statement or have an error in a stored procedure...
2019-06-10
5 reads
Ed Elliott
How do you choose which columns to include in your SQL Server clustered index?
Database Engineering: Database Modelling: Do I need to have an incrementing identity int/bigint as my clustered index in a SQL Server database? When you want to produce a professional...
2019-06-03
10 reads
How do you choose which columns to include in your SQL Server clustered index?
Database Engineering: Database Modelling: Do I need to have an incrementing identity int/bigint as my clustered index in a SQL Server database? When you want to produce a professional...
2019-06-03
17 reads
Why is my pivot query not returning any data? How to debug a PIVOT query
If you have a PIVOT query and it isn’t returning the data you expect, what can you do to troubleshoot it? The thing to do is to break it...
2019-05-21
32 reads
Why is my pivot query not returning any data? How to debug a PIVOT query
If you have a PIVOT query and it isn't returning the data you expect, what can you do to troubleshoot it? The thing to do is to break it...
2019-05-21
8 reads
How to delete a lot of data from a SQL Server database
How to delete data efficiently When we delete data from a table in SQL Server, we can often find that the delete is slower than even the original insert,...
2019-05-15
338 reads
How to delete a lot of data from a SQL Server database
How to delete data efficiently When we delete data from a table in SQL Server, we can often find that the delete is slower than even the original insert,...
2019-05-15
12 reads
How to load test a SQL database
How do you know whether a database code change is going to be great, okay or awful? If you want to test a new version of SQL Server how...
2019-05-08
293 reads
How to load test a SQL database
How do you know whether a database code change is going to be great, okay or awful? If you want to test a new version of SQL Server how...
2019-05-08
9 reads
Should I pluralize table names, is it Person, Persons, People or People?
Reading Time: 5 minutes (just do it!)
There is a lot of confusion when it comes to designing tables in SQL Server around whether to pluralize names or not. How...
2019-05-02
30 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...
WITH clause gets a 26ai boost!
By way of background, a while back I did video called “My New Favourite...
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
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