Solved

"A month number must be between 1 and 12" error in formula

Posted on 2008-10-27
5
2,103 Views
Last Modified: 2012-05-05
I've created a report that will run for the last twelve months based on the current date (a rolling 12 month report).

I'd like to make some corresponding labels for the month values.  I was using this:
monthname (Month (CurrentDate), True)
monthname (Month (CurrentDate) - 1, True)
etc.

and it was working great until I got to month - 10.  Then I got this error:

A month number must be between 1 and 12


Any ideas?  Is there another way to accomplish my goal?  Also, I have to keep the labels short for space consideration which is why I need "Oct" instead of "October".

Thanks in advance,

Steve
0
Comment
Question by:SStroz
5 Comments
 
LVL 77

Accepted Solution

by:
peter57r earned 400 total points
ID: 22810718
for previous months..
monthname (Month (dateadd("m",-1, CurrentDate) , True)
monthname (Month (dateadd("m",-2, CurrentDate) , True)
etc
0
 
LVL 16

Expert Comment

by:wykabryan
ID: 22812870
Peter is correct.

The problem that you are running into with taking a month minus 1 is that month is a number not a date, so 1-1 = 0 but Crystal then tries to reapply date functionality to it and errors cause there is no 0 month. I stress this to all of my developers, anytime you are doing a date modification use the dateadd function. It will prevent many issues down the road.
0
 
LVL 100

Expert Comment

by:mlmcc
ID: 22819129
I agree.  Good explanation.

It also solves the year issue.

mlmcc
0
 
LVL 7

Author Comment

by:SStroz
ID: 22819212
peter57r,

When I try:
monthname (Month (dateadd("m",-10, CurrentDate) , True)

I get an error that "the ) is missing".  If I add a ")" at the end of the statement I get an error that Too many arguments have been given to this function.

What am I missing?

Steve
0
 
LVL 100

Assisted Solution

by:mlmcc
mlmcc earned 100 total points
ID: 22819269
Put it after CurrentDate

monthname (Month (dateadd("m",-10, CurrentDate) ), True)

mlmcc
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

Suggested Solutions

Crystal Reports: 5 Tests for Top Performance It is complete, your masterpiece report.  Not only does it meet your customer’s expectations, it blows them out the water, all they want is beautifully summarised and displayed in a myriad of ways. …
There have always been a lot of questions related to when Crystal Reports evaluates report components (such as formulas, summaries, cross-tabs, charts, to name a few examples). Crystal Reports uses a two-pass reporting process to provide greater …
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

823 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