Sequence higher number

Question

in a table, on cloumn is bound to a sequence. the sequence is defined to start at 1 and goes to unlimited, step 1. the last value given was 49997.
i have delete all content from the table an inport new records. the values for the column bound to the sequence currently are 27316 to 53776. now, i can not add new records unsing the sequence, because when i ask for a new value and try to add the record, i get the ora-00001 unique constraint violation.
how can i make the sequence to continue give values from a higher value which are not in the table now, e.g. from 54000 and up.....
htx.
robert

Answer 1

A few options:
- Drop the sequence and recreate using the "START WITH" clause (but this will invalidate your trigger and any code which references the sequence)
- alter the sequence to temporarily increment it by a value which sets it to the desired value; select the next value; alter the sequence again to increment by 1
SQL> create sequence myseq;
Sequence created.
SQL> select myseq.nextval from dual;
   NEXTVAL
         1
SQL> alter sequence myseq increment by 999;
Sequence altered.
SQL> select myseq.nextval from dual;
   NEXTVAL
      1000
SQL> alter sequence myseq increment by 1;
Sequence altered.
SQL> select myseq.nextval from dual;
   NEXTVAL
      1001