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ISAM Conversion to VFP table or delimited text file
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À
30/08/1999 18:51:46
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00259435
Message ID:
00259489
Vues:
12
>I have am ISAM file that I need to convert over to a foxpro table, delimited text file, or anything else readable by VFP. Has anyone here worked with ISAM? I'm converting from an old, undocumented system and don't know what the structure is supposed to look like. (
>I just have the files)
>
>Any help is appreciated.
>
>-Rick

Your best bet is probably to write a program to read the ISAM file in sequential mode, write it out as a non-ISAM (physical sequential) file, and go from there. This presumes you have access to the machine where the ISAM file resides, along with the facility to write, compile, and run such a program. Even at that, you would need to know the record size and field definitions. If there is no documentation, you could probably get this information from the source listing for a program that accessed this file.

You didn't say what kind of machine the file is on. If it's a mainframe, then you'll need to be concerned with EBCDIC to ASCII character conversion, as well as potentially incompatible field data formats, such as packed decimal numeric fields. I've done some conversions like this, it's tedious but do-able.
Rick Borup, MCSD

recursion (rE-kur'-shun) n.
  see recursion.
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