A. A key used to sort data in a specific order
B. A unique identifier for a record in a table
C. A key that is used to establish a relationship between two tables
D. A temporary key generated during query execution
A. UNION ALL
B. INTERSECT
C. UNION
D. MINUS
A. Rectangles
B. Diamonds
C. Arrows
D. Ovals
A. A set of privileges that can be granted to users or other roles
B. A database object used to enforce constraints
C. A predefined SQL statement stored in the database
D. A user-defined function
A. To improve query performance
B. To enforce unique constraints on a table
C. To automatically generate numeric values for a column
D. To provide simplified and consistent access to an object
A. All employee IDs
B. Employees with salaries greater than 10
C. Employee IDs from departments with no employees
D. Employee IDs from department 10
