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Creat same serial number but I set the serial number unique

Question asked by Thanksgiving on Nov 24, 2008
Latest reply on Dec 2, 2008 by Thanksgiving

Title

Creat same serial number but I set the serial number unique

Post

 The database is used for warehouse in/out administration; and there is an in/out record list on which each record should have a unique serial number that is generated automatically. But sometimes it generates the same serial number, for example serial number A00001 appeared twice in the list; and several days later the repeating serial number (the second A00001 in this case) disappeared with the record. That changes the content of the list.

I don't konw what happend.

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