Boat Hull Flotation StyroFoam Help! Hey everybody, I am wondering about pulling the styrofoam out of my hull in my 10 x 4 foot jon boat. It is Fiberglass and has Hull shaped StyroFoam in the front and the rear and then under the cup holders.
This Oracle tutorial explains how to use the Oracle/PLSQL ROWNUM function with syntax and examples. The Oracle/PLSQL ROWNUM function returns a number that represents the order that a row is selected by Oracle from a table or joined tables. The first row has a ROWNUM of 1, the second has a ROWNUM of 2, and so on.
Here is an Oracle syntax example of a row level trigger that is called AFTER an update FOR EACH ROW affected. This trigger is called on an update to a phone book database. When the trigger called it adds an entry into a separate table named phone_book_audit. Also take note of triggers being able to take advantage of schema objects like sequences, in this example audit_id_sequence.nexVal is used to generate unique primary keys in the phone_book_audit table.