forum

Home / DeveloperSection / Forums / How to Write a Query to Find the Longest String in a Column in SQL Server?

Ask Question
Ravi Vishwakarma

Ravi Vishwakarma

Follow
Ravi Vishwakarma is a dedicated Software Developer with a passion for crafting efficient and innovative solutions. With a keen eye for detail and years of experience, he excels in developing robust software systems that meet client needs. His expertise spans across multiple programming languages and technologies, making him a valuable asset in any software development project.

Can you answer this question?

Answer

1 Answers

Ravi Vishwakarma

Ravi Vishwakarma

16-Jul-2024

To find the longest string in a column in SQL Server, you can use the LEN function to get the length of each string and then use ORDER BY in combination with TOP 1 to retrieve the longest string. 

Here's how you can write the query:

Example 1

-- Technique 1
SELECT TOP 1 [Description]
FROM
    Article
ORDER BY
    LEN([Description]) DESC;

Example 2

-- Technique 2
SELECT TOP 1 [Description], LEN([Description]) AS length_of_string
FROM
    Article
ORDER BY
    length_of_string DESC;

Example 3

-- Technique 3
select top 1 * 
from (
	select [Description], LEN([Description]) AS [S_Length] from Article
) AS Article
order by [S_Length] desc

Example 4

-- Technique 4
select top 1 * 
from (
	select 
	[Description], 
	LEN([Description]) AS [S_Length],
	ROW_NUMBER() OVER( ORDER BY LEN([Description]) DESC) AS ROWNO
	from Article
) AS Article

Output

answer 6394621607064055

 

Read more

Explain the SQL Server backups and their types

Define the PIVOT Table with examples in the SQL server.

MERGE statement in SQL Server to perform upserts

Explain the SQL CURSOR with an example.

 

MindStick Training

Liked By