7) Consider the following entities and their relationship.
Route(route_no, source, destination, no_of_station)
Bus (bus_no, capacity, depot_name)
Relationship between Route and Bus is one-to-many
Constraints: primary key, foreign key,
depot_name should not be null,
bus capacity should be greater than 40.
Create a RDB in 3NF and write PL/SQL blocks in Oracle for the following:
Write a procedure which will display all bus details for a given route.
Write a trigger that restricts insertion of route having number of station less than zero. (Raise user defined exception and give appropriate message)
create table Route(route_no number primary key, source varchar2(20), destination varchar2(20), no_of_station number);
create table Bus(bus_no number primary key, capacity number check(capacity>40), depot_name varchar2(20),route_no references Route(route_no));
insert into Route values(1,'chikhali','akurdi',3);
insert into Route values(2,'chikhali','nigdi',4);
insert into Route values(3,'akurdi','pune',10);
insert into Bus values(101,43,'nigdi',1);
insert into Bus values(102,43,'chikhali',1);
insert into Bus values(103,43,'nigdi',2);
insert into Bus values(104,43,'pimpri',1);
Q1)
create or replace procedure p7(rt in number)
as
cursor c1 is select bus_no, capacity, depot_name from Route r ,Bus b
where r.route_no=b.route_no and r.route_no=rt;
begin
for x in c1 loop
dbms_output.put_line(x.bus_no||' '||x.capacity||' '||x.depot_name);
end loop;
end;
declare
begin
p7(1);
end;
Q2)
create or replace trigger t11
before insert or update on Route
for each row
begin
if(:new.no_of_station<0) then
raise_application_error(-2013,'the no of station should be greater than zero');
end if;
end;
Search
Recent Posts
Mail Management System
Posted on 2019-07-18Online food ordering system
Posted on 2019-07-18Library Management System
Posted on 2019-07-17Health center system project
Posted on 2019-07-17Gym Management System
Posted on 2019-07-17furniture management system
Posted on 2019-07-17Electronic shop management system
Posted on 2019-07-17Automobile Workshop Management
Posted on 2019-07-17Online Visa Processing System
Posted on 2019-07-17Inventory management System
Posted on 2019-07-17petrol-management system
Posted on 2019-07-17Cloths management system
Posted on 2019-07-17Society Management system
Posted on 2019-07-17Mall management system
Posted on 2019-07-17school management system
Posted on 2019-07-17Sales Order Processing System
Posted on 2019-07-17Retail sales management
Posted on 2019-07-17Raw Materials Management
Posted on 2019-07-17railway reservation system
Posted on 2019-07-17purchase and sales management system
Posted on 2019-07-17Placement Management System
Posted on 2019-07-17Pet Shop Management System
Posted on 2019-07-17petrol pump management system
Posted on 2019-07-17Patient Information System
Posted on 2019-07-17news agency system
Posted on 2019-07-17Cinema Booking System
Posted on 2019-07-17Medical Store System
Posted on 2019-07-17leave management System
Posted on 2019-07-17Laboratory Information Management System
Posted on 2019-07-17content management system
Posted on 2019-07-17Inventory management System
Posted on 2019-07-17Institute Management System
Posted on 2019-07-17Hotel management System
Posted on 2019-07-17Gym Management System
Posted on 2019-07-17Garage Management System
Posted on 2019-07-17Furniture shop management system
Posted on 2019-07-17Fisheries management System
Posted on 2019-07-17Fertilizer scheduling system
Posted on 2019-07-17online eye care system
Posted on 2019-07-17Dental Clinic Management System
Posted on 2019-07-17Cyber Café Management
Posted on 2019-07-17Milk Billing System
Posted on 2019-07-17Colddrink management system
Posted on 2019-07-17Cable management System
Posted on 2019-07-17Beauty parlor management system
Posted on 2019-07-17Facebook Clone
Posted on 2019-05-28Dance Class Management System
Posted on 2019-05-24Library Management System
Posted on 2019-05-24Cab Management System
Posted on 2019-05-23Blood Bank Management system
Posted on 2019-05-23Beauty Parlour Management System
Posted on 2019-05-23vissa proccesing system
Posted on 2019-05-23Toll Plazza
Posted on 2019-05-23BILLING APPLICATION
Posted on 2019-05-23FLORICULTURE MANAGEMENT SYSTEM
Posted on 2019-05-23Car On Rent
Posted on 2019-05-23E-commers Shop
Posted on 2019-05-23