SQL Window Functions Series: LAG() and LEAD()
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
11,828 reads
OVER()
2023-11-29
487 reads
2023-11-22
483 reads
2021-05-31
647 reads
2019-08-05
Getting top ranked employee detail for each department
Using OVER clause with ROW_NUMBER() function to get top ranked employee detail as per each department.
2016-10-25 (first published: 2016-10-03)
835 reads
Understanding the OVER Clause in SQL Server
Having a solid knowledge of the window functions if vital to high performance T-SQL Code. The key to these functions is how the OVER clause is used. This article will dive into how to use the OVER clause.
2016-09-30 (first published: 2015-10-14)
182,772 reads
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Split Large Queries in Athena with a Simple Modulo Trick
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Finding Trailing Spaces
Comments posted to this topic are about the item Finding Trailing Spaces
Question of the Day
Finding Trailing Spaces
I have some data in a SQL Server 2025 database. It looks like this for the dbo.Customer table:
CustomerID CustomerName PreferredName 1 Steve Steve 2 Andy Andy 3 Brian Brian 4 Allan Allan 5 Devin Devin 6 Steve Steve 7 Sally SallyI want to detect which names have a single trailing space. The CustomerName is a varchar() and the PreferredName is a CHAR(). Does this query detect the problem rows?
SELECT
CustomerID,
CustomerName,
PreferredName
FROM Customer
WHERE CustomerName <> RTRIM(CustomerName)
OR PreferredName <> RTRIM(PreferredName); See possible answers