troubleshooting Question

Ratio of successive rows in SQL Server

Avatar of AlHal2
AlHal2Flag for United Kingdom of Great Britain and Northern Ireland asked on
9 Comments2 Solutions54 ViewsLast Modified:
Suppose I have a table where the first column is a date and the second an integer.

2016-06-01    10
2017-02-03    20
2017-07-04    30
2018-03-06    40

I'd like an SQL query to return both columns with an extra column containing the ratio of the previous column to the current column.

2016-06-01    10  Null
2017-02-03    20  0.5
2017-07-04    30  0.666
2018-03-06    40  0.75
Sharath S
Data Engineer

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Log in to continue reading
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform for $9.99/mo
View membership options
Unlock 2 Answers and 9 Comments.
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
See how we're fighting big data
The Value of Experts Exchange in My Daily IT Life

Experts Exchange (EE) has become my company's go-to resource to get answers. I've used EE to make decisions, solve problems and even save customers. OutagesIO has been a challenging project and... Keep reading >>


Owner of Outages.IO
Phoenix, Arizona, United States
Member Since 2016
Join a full scale community that combines the best parts of other tools into one platform.
Unlock 2 Answers and 9 Comments.
View membership options
“All of life is about relationships, and EE has made a virtual community a real community. It lifts everyone's boat.”
William Peck

Member since 2004