What happens when we drop a column on a SQL Server table? Where's my space?
You have dropped a column and wondering why you haven't recovered any space? Let's take a look.
2024-08-01 (first published: 2024-04-26)
4,932 reads
You have dropped a column and wondering why you haven't recovered any space? Let's take a look.
2024-08-01 (first published: 2024-04-26)
4,932 reads
Check how much space you may expect to recover from a rebuild after dropping a column!
2024-07-05
1,240 reads
How easily can we find tables with dropped columns that need cleanup?
2024-06-07
2,578 reads
Here you will learn about the key differences between the binary and SQL/Windows collations. You will see that even with all sensitivity flags enabled, SQL/Windows collation cannot behave the same way as the binary collations.
2024-03-15
1,988 reads
Dive deep into the powerful SQL window functions, LAG() and LEAD(). Explore their intricacies, discover real-world examples, and avoid common pitfalls.
2023-12-11
10,827 reads
Learn how to use CTEs through the use of a number of examples.
2023-10-20
10,559 reads
I need to convert an integer to a string value, what options are available in Microsoft SQL Server with T-SQL scripts and stored procedures?
2023-09-22
To move a table into a schema in T-SQL, you can use the ALTER SCHEMA statement along with the TRANSFER option. Here are the steps to do this: Assuming you have an existing schema named "NewSchema" and a table named "YourTable" that you want to move into this schema: Open SQL Server Management Studio or […]
2023-09-29 (first published: 2023-09-18)
5,609 reads
I’ve long been a huge advocate for always referencing objects with a schema prefix in SQL Server.
In spite of what may be a controversial title to many of my regular blog readers, I don’t really want you to stop that practice in most of your T-SQL code, because the schema prefix is important and useful most of the time. At Stack Overflow, though, there is a very specific pattern we use where not specifying the schema is beneficial.
2023-09-13
Learn how to use the DatabasePropertyEX() function to query your database for settings.
2022-08-29
2,204 reads
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
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Comments posted to this topic are about the item How We Handled a Vendor...
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