Applied SQL: sys.objects
I introduce this whole concept in Applied SQL: You Have Homework. Find all assignments on the Applied SQL page.
Prerequisites: basic...
2011-08-17
1,383 reads
Jen McCown
Applied SQL: You Have Homework
I found myself saying this week – for the N-zillionth time – that while studying is vital, it isn’t everything. What do...
2011-08-17
585 reads
We Are TOTALLY Amused: A T-SQL Error
This has to be the best error I’ve ever seen:
Msg 195, Level 15, State 10, Line 2
‘SUM’ is not a...
2011-08-11
837 reads
Roundup for Un-SQL Friday #005: Bad Interviews
It’s time for the Un-SQL Friday #005 roundup!
From managers…
First up, The Lone DBA admits that he wasn’t always (ahem) one of us…he’s got...
2011-07-29
1,777 reads
Speaking Schedule! I’m here (and there, and there…) to help
Depending on whether you’re (A) me, or (B) you, the next few weeks are either (A) an insanely busy but enjoyable...
2011-07-25
572 reads
Un-SQL Friday #005: Bad Interviews
Yesterday a friend told me a tale of an interview he conducted with a, shall we say, less than desirable...
2011-07-19
705 reads
Search Argument Case Study: WHERE the year was 2002…
Content Rating: Beginner, Tips
It’s entirely possible that you’re fiddling with your search arguments too much, and missing out on the...
2011-07-18
815 reads
SELECT INTO and IDENTITY (or, BOL is Sorta Wrong)
I am easily distracted. Lucky for all of us, I tend to be distracted by cool tidbits in SQL Server...
2011-07-14
988 reads
Meme Monday SQLstrology – Table Valued Zodiac Function
It’s Meme Monday time! Our topic is SQL Horoscopes, or more catchily, SQLStrology.
We’re going to have to figure out what astrological...
2011-07-11
952 reads
T-SQL Formatting Workaround (Word Macro)
Hi all! I’m on vacation this week, but I’ve cleverly scheduled this blog post so you won’t miss me too...
2011-06-20
1,578 reads
Blogs
Announcements from the Microsoft Fabric Community Conference — Barcelona 2026
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
Au Revoir for now
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
Forums
Let's Talk Certifications
Comments posted to this topic are about the item Let's Talk Certifications, which is...
The Hidden Security Risks of Role Combination in SSAS Tabular
Comments posted to this topic are about the item The Hidden Security Risks of...
The Empty Aggregate
Comments posted to this topic are about the item The Empty Aggregate
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