What's the equivalent of "identity"(ms sql) in oracle?

hi,
I want to know how to make a field in a table an autoincrement field. With MS SQL, you just define the field as "identity" and whenever you insert a record,
you don't insert any value for this field and automatically this field will get the value of the
last record field value + 1. How can I do this in Oracle?

Thanks in advance,
Pauline Received on Tue Dec 08 1998 - 11:03:45 CST