How do I fix my procedure country_demographics? - oracle

Question

CREATE OR REPLACE PROCEDURE country_demographics
(p_country_name IN countries.country_name%TYPE,
p_country_demo_rec OUT ed_type)
IS
TYPE ed_type IS RECORD (
c_name countries.country_name%TYPE,
c_location countries.location%TYPE,
c_capitol countries.capitol%TYPE,
c_population countries.population%TYPE,
c_airports countries.airports%TYPE,
c_climate countries.climate%TYPE);
BEGIN
SELECT country_name, location, capitol, population, airports, climate
INTO ed_type.c_name, ed_type.c_location, ed_type.c_capitol, ed_type.population, ed_type.airports, ed_type.climate
FROM countries;
DBMS_OUTPUT.PUT_LINE('Country Name:' || v_country_demo_rec.country_name ||
'Location:' || v_country_demo_rec.location ||
'Capitol:' || v_country_demo_rec.capitol ||
'Population:' || v_country_demo_rec.population ||
'Airports:' || v_country_demo_rec.airports ||
'Climate:' || v_country_demo_rec.climate );
IF SQL%NOTFOUND THEN
RAISE_APPLICATION_ERROR(-20201, 'This country does not exist.');
END IF;
END;
The problem is asking me to create a procedure called country_demograhics. Pass the country_name as an IN parameter. Display CONTRY_NAME, LOCATION, CAPITOL, POPULATION, AIRPORTS, CLIMATE. Use a user-defined record structure for the INTO clause of your select statement. Raise an exception if the country does not exist.
Now here is a copy of my code, that keeps coming back with an error of:
Error at line 0: PL/SQL: Compilation unit analysis terminated.

Answer 1

That error should be the second error which tells you, it will not look any further. There should be another error too. I guess that ed_type doesn't exist outside of the procedure so it can not have an ed_type as OUT parameter. ed_type isn't known outside.

Answer 2

First thing - Look you used the different variable in declaring(p_country_demo_rec ) and begin(v_country_demo_rec) part. I think that might be one mistake.
Try following script:- it may help you.
CREATE OR REPLACE PROCEDURE COUNTRY_DEMOGRAPHICS
IS
TYPE ED_TYPE IS TABLE OF countries%ROWTYPE;
p_country_demo_rec ED_TYPE;
BEGIN
SELECT * BULK COLLECT INTO p_country_demo_rec FROM countries;
FOR i IN p_country_demo_rec.FIRST..p_country_demo_rec.LAST
LOOP
DBMS_OUTPUT.PUT_LINE('Country Name:'||p_country_demo_rec(i).country_name ||
'Location:' || p_country_demo_rec(i).location ||
'Capitol:' || p_country_demo_rec(i).capitol ||
'Population:' || p_country_demo_rec(i).population ||
'Airports:' || p_country_demo_rec(i).airports ||
'Climate:' || p_country_demo_rec(i).climate );
END LOOP;
IF SQL%NOTFOUND THEN
RAISE_APPLICATION_ERROR(-20201, 'This country does not exist.');
END IF;
END;
/
EXECUTE COUNTRY_DEMOGRAPHICS;
Note:- You can use the one parameter(IN parameter) in a procedure to get the specific country demographics data and that parameter use in select statement for filter out the specific country.
Example:
CREATE OR REPLACE PROCEDURE COUNTRY_DEMOGRAPHICS(p_country_name IN varchar2)
Select statement looks like:
SELECT * BULK COLLECT INTO p_country_demo_rec FROM countries where
country_name = ||p_country_name;
Execute part:
EXECUTE COUNTRY_DEMOGRAPHICS(p_country_name);