Modify DBF Structure

[Jeff Barnes]

Is there a way via code to adjust the field size in a DBF file ?

I have a numeric field that is currently 4 chars in size.
I would like to be able to use code to change it to a size of 6 (no decimals)

[Enrico Maria Giordano]

As far as I know, you have to create a new DBF structure and copy the old data to the new DBF.

EMG

[driessen]

Jeff, this is the way I change DBF structures while upgrading my application.

I have a folder called DATA, containing all the DBF-files with the data of my application.
I have a second folder, called DATABESC, containing the same DBF-files, but only containing 1 record.

While upgrading, in de folder DATA, I take the first DBF-file (let's call it FILE1.DBF), rename it to FILE1OLD.DBF.
Then I make a new FILE1.DBF, using the structure of FILE1.DBF in the folder DATABESC.
Then I copy all the records from FIL1OLD.DBF to FILE1.DBF.
If a field is added, I give the field in my records the same value as it has in FIL1.DBF in de DATABESC-folder.
After having copied all the records to FILE1.DBF, this file has been changed to the new DBF-structure.
Finally, FILE1OLD.DBF is deleted.

So, if I need to change the DBF-structure, I change it in the DBF-file in the DATABESC-folder after which my upgrade-program is run.

I hope I was able to make myself clear.

Good luck.