Data and Databases

What’s inside

• Which property of a relational database ensures that each row in a table can be uniquely identified?
• What is the main purpose of normalization in a relational database?
• Which SQL command is used to retrieve records from one or more tables?
• In a database, what does a foreign key normally represent?
• Match each database concept with its most accurate description.
• Match each SQL statement with the operation it performs.
• Match each data concept with its best example or explanation.
• Match each database constraint with its typical purpose.