DATEADD("m "？ ,? 1? ,? " 3 1-Jan-98 ")？

Results:

February 28th, 98?

If the table has been built, use the following statement:

Alter? Table? table_name？ Modify? Column? WillDate？ DEFAULT (dateadd ("m ",1, Lenddate) If not, the default constraint will be added when the table is built.