what you have to is :1. create a sequence
2. create a trigger on the table and inside the trigger , fetch the nexval of the sequence and assign the value for the column. there are plenty of threads are talking on this issue , please do a search on it
2. create a trigger on the table and inside the trigger , fetch the nexval of the sequence and assign the value for the column. there are plenty of threads are talking on this issue , please do a search on it
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