Solved

Oracle - Calculate Business Days

Posted on 2013-11-06
8
617 Views
Last Modified: 2013-11-06
Is there a way to calculate dates with only business days?

For example, based on today's date, how many business days are left for the week?
Answer would be 2.
0
Comment
Question by:patriotpacer
[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
  • 3
  • 3
  • 2
8 Comments
 
LVL 74

Accepted Solution

by:
sdstuber earned 500 total points
ID: 39628045
Assuming you mean days that aren't Saturday or Sunday and you don't want to include the current day, then try something like this...

change

TO_DATE('2013-11-09', 'yyyy-mm-dd')

to whatever end-point you're interested in


SELECT COUNT(*)
  FROM (    SELECT TRUNC(SYSDATE) + LEVEL  d
              FROM DUAL
        CONNECT BY TRUNC(SYSDATE) + LEVEL <= TO_DATE('2013-11-09', 'yyyy-mm-dd'))
 WHERE TO_CHAR(d, 'Dy') NOT IN ('Sat', 'Sun')



Since today is 11/6,  this generates the days 11/7, 11/8, 11/9  in the inner query  (tomorrow through end of period)

then throws out 11/9 because it's Saturday and counts what is left over
0
 
LVL 32

Expert Comment

by:awking00
ID: 39628074
How would you want to treat the case where today is Saturday or Sunday?
0
 
LVL 74

Expert Comment

by:sdstuber
ID: 39628099
the query above would already handle that.  Assuming, of course, that Saturday and Sunday aren't considered business days.


Here's a slightly more versatile version of the above.  Simply change the start_date and end_date values to whatever you want.

If you want to use "today" as the start_date or end_date,  then use   TRUNC(SYSDATE) as shown above in the original query.

SELECT COUNT(*)
  FROM (    SELECT start_date + LEVEL d
              FROM (SELECT DATE '2013-11-02' start_date, DATE '2013-11-09' end_date FROM DUAL)
        CONNECT BY start_date + LEVEL <= end_date)
 WHERE TO_CHAR(d, 'Dy') NOT IN ('Sat', 'Sun');


This example returns 5 business days between last Saturday and this coming Saturday
0
SharePoint Admin?

Enable Your Employees To Focus On The Core With Intuitive Onscreen Guidance That is With You At The Moment of Need.

 

Author Closing Comment

by:patriotpacer
ID: 39628113
Thanks.  This was what I needed.
0
 
LVL 32

Expert Comment

by:awking00
ID: 39628121
Assume today was Sunday, how many business days are left in the week, 0 or 5?
0
 
LVL 32

Expert Comment

by:awking00
ID: 39628174
If the query is never going to be run on Saturday or Sunday, I kind of like the following for simplicity:
select 6 - to_char(sysdate,'d') busdaysleft from dual;
0
 

Author Comment

by:patriotpacer
ID: 39628185
awking00 - Thank you for your post.  Unfortunately, the query will need to run every day.

BTW - I'm about to post a follow up to this question.
0
 

Author Comment

by:patriotpacer
ID: 39628189
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Suggested Solutions

How to Create User-Defined Aggregates in Oracle Before we begin creating these things, what are user-defined aggregates?  They are a feature introduced in Oracle 9i that allows a developer to create his or her own functions like "SUM", "AVG", and…
Checking the Alert Log in AWS RDS Oracle can be a pain through their user interface.  I made a script to download the Alert Log, look for errors, and email me the trace files.  In this article I'll describe what I did and share my script.
This video shows syntax for various backup options while discussing how the different basic backup types work.  It explains how to take full backups, incremental level 0 backups, incremental level 1 backups in both differential and cumulative mode a…
This video explains what a user managed backup is and shows how to take one, providing a couple of simple example scripts.

732 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