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)
5,121 reads
dba
How much Space can I expect to recover from a rebuild after dropping a column?
Check how much space you may expect to recover from a rebuild after dropping a column!
2024-07-05
1,294 reads
Identify Tables With Dropped Columns
How easily can we find tables with dropped columns that need cleanup?
2024-06-07
2,673 reads
Takeaways from Data Grillen 2024
Two days of Data, Beer and Bratwurst. What did it bring me, find out by reading this photo-rich article.
2024-05-24
513 reads
Different Ways to Populate the List of Tables
This article shows how you can query different types of tables, based on certain criteria that may be important to you. A good list of basics for any database administrator that will help you find tables in your database.
2023-10-06
2,059 reads
The role of forethought for a computer engineer
If you have ever played a game of chess against someone good, or perhaps against a computer, you know that a good player is always thinking multiple moves ahead. Being a DBA and/or a database programmer is like playing several chess games simultaneously.
2023-07-19
Cheat Sheet for SQL Server DBAs - Monitoring Current Activity, Blocking and Performance
It seems like every DBA has a USB stick or a shared drive filled with scripts they can pull up in almost any situation. How can I build such a library of T-SQL files?
2023-06-26
Oracle ASM: Migrating from UDEV devices to the ASM Filter Driver
This article looks at the way in which you can convert unmanaged devices to the ASM filter drive in an Oracle system.
2022-03-04
4,797 reads
Where's the best place to live as a DBA?
Got wanderlust? We thought it would be fun to look at where the best place to live in the world is as a DBA. Find the winners and weigh in on the debate here!
2022-01-17
DBAs at work #3: The finance company Manager DBA
Want an insight into how your fellow DBAs work? This episode features Kevin Davis, Manager of Database Administration at Tower Loan, a consumer finance company with 250 branches across the US.
2021-12-29
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The Empty Aggregate
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Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers