There will be a text file that come daily. The file will update the master database dbf. The file may have 30 files daily but it may be less one day. You may lose 2 record from the file and you have on 28 files in the text document. So you must scan the master dbf for the missing file and remove it from the dbf. You can one day have ove 32 files and that mean that 2 more files were missing from the database. You have to scan the database to add the missing file.
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