Year-to-date period totals

I have a table with 12 columns labeled Period1 to Period12. All columns contain numerical values.

Period1 | Period2 | Period3 etc.
 1000      2000       500

I would like to create a function, or stored procedure, which you can pass in the Current Period and create a Year to Date total.

Year to Date for Period 2 -
 YTDTotal
  3000

Year to Date for Period 3 -
 YTDTotal
  3500
etc.

Hope you can answer this. Have looked at other answers, and all are based on summing a fixed number of columns. This needs to be more dynamic.

    Requires Free Membership to View

    Login

    By submitting your registration information to SearchOracle.com you agree to receive email communications from TechTarget and TechTarget partners. We encourage you to read our Privacy Policy which contains important disclosures about how we collect and use your registration and other information. If you reside outside of the United States, by submitting this registration information you consent to having your personal data transferred to and processed in the United States. Your use of SearchOracle.com is governed by our Terms of Use. You may contact us at webmaster@TechTarget.com.

Here's what you will need --

select Period1 
      +Period2
  from ...

select Period1 
      +Period2 
      +Period3
  from ...  
  
etc.

The way to make this "dynamic" is to generate the SQL in your application code (whether this is in a stored procedure or whatever). This won't be truly dynamic because you will need to EXEC the dynamic query string.

A better solution is to design your table differently. Instead of 12 columns, create a table with two columns -- Period Number and Amount. Then in Period 1 there would be one row, in Period 2 you add another row, and so on. In this way, you can make the SQL truly dynamic, like this --

select sum(Amount)
  from ...
 where PeriodNumber <= 2

select sum(Amount)
  from ...
 where PeriodNumber <= 3
  
etc.

Now, that's a lot nicer, isn't it? And by making the period number a parameter, the query can be compiled in the stored proc and so be even more efficient.

This was first published in April 2006

Join the conversationComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.
    Back to top