Thanks mdipierro for ur reply :) Am using MySQL
but after i did the following: db.define_table("member", Field("membership_id", "integer",notnull=True), Field("first_name", "string", notnull=True,length=100), Field("middle_name", "string", notnull=True,length=100), Field("last_name", "string", notnull=True,length=100), Field("birthdate", "date"), Field("degree",db.academic_degree), # the new field migrate=True,fake_migrate=True) it cause an error : OperationalError: (1054, "Unknown column 'member.degree' in 'field list'") because the field wasn't created into the database. How can i fix this ? Thanks in Advance