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Homework 1 Managing Data(bases) using SQL

Objective: CREATE TABLE statement, Primary/Foreign key constraints

Problem 1:

Create the following table:

    • Table name: customer

    • Columns:

    o customerID (whole number max 4 digits)

        o customerName (variable character max 50 characters) o customerSince (date)

    • Primary key on column customerID named customer_pk

Problem 2:

Execute the following two statements (inserting one sample record into table customer and verifying that record was correctly inserted):

    • INSERT INTO customer VALUES(1008, 'New Customer', sysdate);

    • SELECT * FROM customer;

Problem 3:

Create a second table:

    • Table name: orders

    • Columns:

        o orderID (whole number max 8 digits) o orderDate (date)

o shippingMethod (variable character max 25 characters) o customerID (whole number max 4 digits)

    • Primary key on column orderID named orderID_pk

    • Foreign key on column customerID relating to column customerID in table customer named customerid_fk

Problem 4:

Execute the following statements:

    • INSERT INTO orders VALUES(12345678, sysdate, '2-Day', 1008);

    • INSERT INTO orders VALUES(88888888, sysdate, '2-Day', 1009);

    • SELECT * FROM orders;

Problem 5:

Explain why the second INSERT statement under 4. failed with an error (No screenshot needed, simply a written answer).

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