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cisam FILEDEF change questions


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#1 Rob Fantini

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Posted 15 May 2018 - 08:10 PM

I assume the following. 

 

- variables can be renamed in @F and functions.

 

- in order to add variables 

   or indexes ,

  the filedef will need to be copied to a new file , then existing data copied over . etc.

 

 

- storage format  or length can not be changed.

 

 

 are those true?

 

 any other things you may remember to watch out for?

 

 



#2 Rob Fantini

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Posted 16 May 2018 - 12:44 AM

to make that clearer   - storage format  or length can not be changed.

 

filedef would need to be copied to new file like adding index or variables.



#3 Rob Donovan

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Posted 16 May 2018 - 06:58 AM

Yep, that is correct.

 

You will need to write a Lookup / Add Update to convert each file if you change lengths, types or order of any fields.



#4 Rob Fantini

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Posted 16 May 2018 - 08:41 PM

thanks Rob.





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