mosh98 / JDBC-assignment

Java database connection and operations

Basic CRUD

Postgres hosted on heroku

Tested Using PgAppRunner class

@Autowired

@Component
public class PgAppRunner implements ApplicationRunner {
    CustomerRepository customerRepository;

    @Autowired
    public PgAppRunner(CustomerRepository customerRepository) {this.customerRepository = customerRepository;}

    @Override
    public void run(ApplicationArguments args) throws Exception {
        // this is where we tested the different crud operations
        //...
        //....
    }
}

CRUD operations include

• Find All Customer

CustomerRepository.findAll();

• Find All Customer

CustomerRepository.findById();

• Find By Name

CustomerRepository.findByName();

• Find Customer Page (with limit & offset)

CustomerRepository.findCustomersPage(limit, offset);

• Add Customer

CustomerRepository.addCustomer(CustomerObject);

• Update Customer

CustomerRepository.updateCustomer(CustomerObject);

• Find Country with most customers

CustomerRepository.findCountryWithMostCustomers();

-Find Customer with highest Spending

CustomerRepository.findCustomerWithHighestSpending();

-Find most popular genre for a customer

CustomerRepository.mostPopGenre(customer_id);