4.Procedure Exercise: A.Write a procedure that displays the number of countries in a given region whose highest elevations exceed a given value. The procedure should accept two formal parameters, one for 3 a region_id and the other for an elevation value for comparison. Use DBMS_OUTPUT.PUT_LINE to display the results in a message. Save your procedure code.
B.Execute your procedure using the value 5 for the region_id and 2000 for the highest elevation.
C.DESCRIBE your procedure to check the names and datatypes of its formal parameters.