Question { Accenture, 10506 }

3. Suppose Seq Gen is supplying a increamental value to a column
of a table, suppose, table's column value reaches to maximum
value, then what will happen, will the session fail? If it is the
situation, then what should be done so that we can stop this kind
of situation in advance?

Answer

Yes, the Sequence generator will reset but there is a
possiblity of session failure. Lets say for the sake of
argument after seq reset initial value is 1. One of the
possible situation for session failure is that if the
sequence generator is feeding any column that has PK or SK
or Unique Index on the target table and the initial value
after reset i.e., in our scenario it's 1 exist in the table
then the session will fail with Database violation error.