A Guide to SQL Study Set 2
Quiz 2 :
Database Design Fundamentals
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Q21 Q21 Q21
In the following shorthand representation of a database, the underlined items are _____. INVOICES (INVOICE_NUM, INVOICE_DATE, CUST_ID) INVOICE_LINE (INVOICE_NUM, ITEM_ID, QUANTITY, QUOTED_PRICE) ITEM (ITEM_ID, DESCRIPTION, ON_HAND, CATEGORY, LOCATION, PRICE)
Q22 Q22 Q22
You receive the following requirements for a caterer's database: For a customer, store a customer ID, last name, first name, billing address, and phone number For an order, store an order number, order date, event date, customer ID, description of services, and total price for services When designing this database, which step do you take first?
Q26 Q26 Q26
You are working with a QUOTATIONS table that contains no repeating groups and has a primary key consisting of the SERVICE_CODE and SPECS columns. You realize that some other columns in the table functionally depend on either SERVICE_CODE or SPECS, but not both, whereas the rest depend on both. How should you improve this table?