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Bonus TIPS for Successful Posting

Try a Search First
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Disappearing file

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    Disappearing file

    I have one file that has begun to disappear at least once a day. Table name is "from" and the from.ddx file is just gone. It's a small table, only 2 fields and 20 records. Now that I know it's the culprit, I can copy it from backup, but it's a pain when we hit that particular field and Alpha locks up suddenly. Any ideas?

    Re: Disappearing file

    Not much to go on there. What is the purpose of the table? Any new virus software installed recently?
    There can be only one.


      Re: Disappearing file

      the ".DDX" file is one of three supporting dictionary files for your table. The other two dictionary files have ".DDD" and ".DDM" filename extensions.

      Best practice is to ALWAYS copy these together. Best practice is to NEVER replace or copy over a single supporting dictionary file. Think of them as a group. All members of the group should be replaced / copied over if any member of the group is replaced / copied over.


        Re: Disappearing file

        The table in question is just a lookup table. With such a small number of (unchanging) records, I could just as easily make it a list lookup instead of a table lookup. And no, no new antivirus software.


          Re: Disappearing file

          make the lookup use "previous values". that way, you are in effect, creating a "table" lookup


            Re: Disappearing file

            May I suggest:
            copy the complete set of files from the most recent backup(from.dbf, from.ddm, from.ddx, from.cdx . Then Drop it from the adb and the add it back to the adb. after doing that, rename the table to something else, like afrom. Yes I know renaming causes a little extra work.
            Reason, some errant program/alpha/virus/ or other on your computer may be deleting from.??x or anything named from.dd?. It is probably deleting yours as an error, if that is the case at all.
            Dave Mason
            [email protected]
            Skype is dave.mason46