Interview Query – 1
Somewhere on internet i found this question. Thought to share it with you all.
We have two tables, school_students and Class_student.
...
2018-09-17 (first published: 2018-09-04)
2,504 reads
Don’t cutoff yourself with dates in T-SQL – Did you know…
Almost all the applications we use have a lot of options. And, sometimes we even stumble across them by accident.
Who’s...
2018-09-04
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Data Professionals at Work – a book-writing adventure
I love to write. It is how I express myself best. During the last fall I was pondering starting on...
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Does The Order Of Index Columns Matter?
When beginning to learn SQL, at some point you learn that indexes can be created to help improve the performance...
2018-09-13 (first published: 2018-09-04)
5,032 reads
Does The Order Of Index Columns Matter?
Watch this week's video on YouTube
When beginning to learn SQL, at some point you learn that indexes can be created to help improve the performance of queries.
Creating your first...
2018-09-04
14 reads
Does The Order Of Index Columns Matter?
Watch this week's video on YouTube
When beginning to learn SQL, at some point you learn that indexes can be created to help improve the performance of queries.
Creating your first...
2018-09-04
7 reads
Looking at the PASS FY 2019 Budget
I just spent a few more minutes looking at the FY 2019 budget. It is hard to assess whether it’s...
2018-09-14 (first published: 2018-09-04)
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T-SQL Tuesday #106 – Trigger Headaches or Happiness
Since I took over the T-SQL Tuesday a few months ago, I decided I ought to host again. Especially since...
2018-09-04
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MongoDB 4.0.2 release
As i was discussing about MongoDB in my earlier blog, on NOSQL ACID stands for Atomic, Consistent, Isolation, and Durable...
2018-09-04
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Volunteer for the PASS NomCom
The call for applications for the Nominating Committee closes on Sep 10th. If you care about the future of PASS...
2018-09-04
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Forums
Let's Talk Certifications
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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