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Update DBMS/SQL/Week6/writeup.md

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Aadit Agrawal 2025-02-11 16:15:52 +05:30
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DBMS/SQL/Week6/writeup.md
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@ -26,24 +26,23 @@ TOTAL_ACCD(2024)
### 2. Create a procedure to display total damage caused due to an accident for a particular driver on a specific year. ### 2. Create a procedure to display total damage caused due to an accident for a particular driver on a specific year.
```SQL ```SQL
create or replace procedure tot_damage CREATE OR REPLACE PROCEDURE tot_damage
(driver in varchar2, year in number) is (driver IN VARCHAR2, year IN NUMBER) IS
damage number := 0; damage NUMBER := 0;
begin BEGIN
select sum(damage_amount) into damage SELECT NVL(SUM(pa.DAMAGE_AMOUNT), 0) INTO damage
from participated pa FROM participated pa
natural join accident ac JOIN accident ac ON pa.REPORT_NUMBER = ac.REPORT_NUMBER
where pa."driver_id#" = driver WHERE pa.DRIVER_ID# = driver
with quotes AND EXTRACT(YEAR FROM ac.ACCD_DATE) = year;
and extract(year from ac.accd_date) = year;
dbms_output.put_line('total damage: ' || nvl(damage, 0)); DBMS_OUTPUT.PUT_LINE('Total damage: ' || damage);
exception EXCEPTION
when no_data_found then WHEN NO_DATA_FOUND THEN
dbms_output.put_line('no data found for the given driver and year.'); DBMS_OUTPUT.PUT_LINE('No data found for the given driver and year.');
when others then WHEN OTHERS THEN
dbms_output.put_line('an error occurred: ' || sqlerrm); DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM);
end; END;
/ /
``` ```
```sql ```sql