Refer to IDENTITY Columns with syb_identity

Once you have defined an IDENTITY column, you need not remember the actual column name. You can use the syb_identity keyword, qualified by the table name where necessary, in a select, insert, update, or delete statement on the table.

For example, this query selects the row for which sale_id equals 1:

select * from sales_monthly
    where syb_identity = 1