how to alter sequence.

Hai friends,
I have a sequence called raj_seq with max value 3000.
I have a table, with one field haveing
nextvalu('raj_seq') as default value.;
now i wanted to increase the max value of the raj_seq
to 9999999.
How to do this change?
If i drop and recreate the raj_seq, then i have to
recreate the table and all triggers working on that
table.But it is not an acceptable solution.
So with out droping raj_seq , how do I solve this
problem.
Thanks in advance.
have a nice time.
raja



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