Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

SQL calculate a percentage

Posted on 2013-01-22
4
Medium Priority
?
257 Views
Last Modified: 2013-01-22
In this query I'm trying to do a percent calcuation but for some reason anything less than 100% is not being calculated.

SELECT #tmp_ALLORDERS_COUNTS.TOTAL_ORDERS_COUNT, CAST(((#tmp_IVPROTOCOL_COUNTS.IVPROTOCOL_ORDERS_COUNT/#tmp_ALLORDERS_COUNTS.TOTAL_ORDERS_COUNT)*100) as decimal(18,2)) AS PERCENTAGE_USE
	, #tmp_IVPROTOCOL_COUNTS.* FROM  #tmp_ALLORDERS_COUNTS, #tmp_IVPROTOCOL_COUNTS
	WHERE  #tmp_ALLORDERS_COUNTS.DRUG_CODE = #tmp_IVPROTOCOL_COUNTS.DRUG_CODE

Open in new window


results look like this:
percentagecalcsql
0
Comment
Question by:ghettocounselor
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 35

Accepted Solution

by:
johnsone earned 2000 total points
ID: 38807482
It is most likely an issue of data types.  I would cast each individual variable:

CAST(CAST(#tmp_IVPROTOCOL_COUNTS.IVPROTOCOL_ORDERS_COUNT as decimal(18,2))/CAST(#tmp_ALLORDERS_COUNTS.TOTAL_ORDERS_COUNT as decimal(18,2))*100.0) as decimal(18,2))

It is doing integer math and then doing the cast.  You need to do the cast first.
0
 

Author Comment

by:ghettocounselor
ID: 38807963
Needed to wrap with a few more parens but idea was sound. THANKS!

(CAST(CAST(#tmp_IVPROTOCOL_COUNTS.IVPROTOCOL_ORDERS_COUNT as decimal(18,2))/(CAST(#tmp_ALLORDERS_COUNTS.TOTAL_ORDERS_COUNT as decimal (18,2))) as decimal (18,2))*100) AS PERCENTAGE_USE
0
 

Author Closing Comment

by:ghettocounselor
ID: 38807966
As always appreciate quick response!
0
 
LVL 35

Expert Comment

by:johnsone
ID: 38808056
Sorry about the missing parens.  I didn't try it.  It looked like they were all there.  But, you got the idea.
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you have heard of RFC822 date formats, they can be quite a challenge in SQL Server. RFC822 is an Internet standard format for email message headers, including all dates within those headers. The RFC822 protocols are available in detail at:   ht…
An alternative to the "For XML" way of pivoting and concatenating result sets into strings, and an easy introduction to "common table expressions" (CTEs). Being someone who is always looking for alternatives to "work your data", I came across this …
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…

704 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question