A CASE SQL statement is ________?
- A way to establish a loop in SQL.
- A way to establish an IF-THEN-ELSE in SQL
- A way to establish a data definition in SQL
- All of the above.
Explanation: A CASE statement is one of the control flow function that allows us to write an if-else or if-then-else logic in a SQL query. This expression validates various conditions and shows the output when the first condition is true, and stops traversing. If any condition is not true, it executes the else block. It shows a null value if the else block is not found.