forum

home / developersection / forums / explain unpivot with example in sql server.

Ask Question
Steilla Mitchel

Student

I completed my post-graduation in 2013 in the engineering field. Engineering is the application of science and math to solve problems. Engineers figure out how things work and find practical uses for scientific discoveries. Scientists and inventors often get the credit for innovations that advance the human condition, but it is engineers who are instrumental in making those innovations available to the world. I love pet animals such as dogs, cats, etc.

Follow
Can you answer this question?
Answer

1 Answers

Khushi Singh

Khushi Singh

13-Jan-2025

UNPIVOT, which works with SQL Server is used to turn columns into rows. This is especially valuable in cases when you have to normalize your data or when you prefer to transform a table consisting of columns containing similar data into a table with more rows and one column.

Syntax of UNPIVOT:

SELECT <column_list>
FROM <table_name>
UNPIVOT (value_column FOR name_column IN (column_list)) AS alias;


value_column: The column into which the values of the columns in the transformation process will be migrated.

name_column: The column that will hold the names of the original columns as well.

column_list: The name of the columns that would be unpivoted.

 

Use Cases:

Data Normalization: Converting a wide dataset into a tall format for easier analysis.

Reporting: Generating row-based reports from columnar data.

Integration: Preparing data for systems that require row-based data instead of columnar.

By using UNPIVOT, you can easily transform your data into the desired format.

 

MindStick Training
MindStick Training

Liked By

We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy