Joined: 14 Jan 2009
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Topic: When to use Global or Shared variables Posted: 07 Oct 2009 at 6:37pm
Is it good practice to use SHARED variables in a main report to share values between formulas in the main report or should you always use GLOBAL in the main report and only use a SHARED variable when you are using a sub-report? That isn't very clear to me in the book.
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Posted: 08 Oct 2009 at 6:13am
I use shared all the time, because I know if I ever put a subreport into the report, the variables will access it. Also, I use if for the simple fact, that I want a variable that is seen everywhere (global), which in CR is shared. In the grand scheme of things, I don't know if this is the most effect use of resources, but it makes it that much easier for me to remember.
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Posted: 08 Oct 2009 at 6:32am
Just puzzles me that most of the books show examples of GLOBAL. I have been teaching it that way in my classes but a someone challenged me on it. I guess I need to change and teach that SHARED is better than GLOBAL. I hate it when the student is right ha ha ha.... Thanks for your input.
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Posted: 08 Oct 2009 at 6:54am
Well....I hate that CR called Global, and it is not truly global...shared is. I try to avoid subreports, so shared and global become the same, as there is no boundary to cross...just easier for me to remember.
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Posted: 08 Oct 2009 at 3:06pm
Lockwelle,
I discovered today by reading my SAP CR Report Design III book that if you use the repository you can save Custome Functions in the repository and then use them in other reports so there is one instance where you could use a variable between reports. (page 5-3) But you can put LOCAL, SHARED or GLOBAL in a Custom Function. But we dont use the repository feature so that still does not settle the question. Thanks for taking the time to share your thoughts with me. Cvail
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