Problem 54
Define an SQL query that returns the address of every customer in the Customer table who lives on Lois Lane.
Problem 57
Define an SQL statement that deletes the customer with a Customerld of 103 .
Problem 58
What is an ER diagram?
Problem 59
How are entities and relationships represented in an ER diagram?
Problem 60
How are attributes represented in an ER diagram?
Problem 61
What are cardinality constraints, and how are they shown in ER diagrams?
Problem 62
What are the three general cardinality constraints?
Problem 65
What were some of the webbased technologies that allowed e-commerce to become viable?
Problem 66
What is big data? How does it relate to spreadsheets and databases?
Problem 67
Name three challenges in big data analysis.
