Introduction
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Date and time
Instruction
Wow, perfect! We can now move on to another data type.
BOOLEAN is a data type used to store logical values: true or false. This data type usually answers a yes/no question like "Does the user keep pets?". BOOLEAN types are convenient because they require really little space.
For your information, some databases don't have a separate BOOLEAN type and they simulate it using other types.
Exercise
Some users complain that there are fake accounts on the dating website. Peters wants to introduce a new feature - user verification. For now, let's create a simple table called verification with two columns: user_id (integer) and is_verified (boolean).
Stuck? Here's a hint!
Type
CREATE TABLE verification (
user_id int,
is_verified boolean
);
