# Conditional statements part 3

Conditions are booleans. Boolean is a data type with two possible values: `TRUE` or `FALSE`.

For example

<div class="Lesson_content__j6FUx" id="bkmrk-10-%3E-100%C2%A0--false-10-">- `10 > 100` - FALSE
- `10 > 5` - TRUE
- `10 > 5 AND 100 < 5` - FALSE

</div>Boolean columns have only two values - either 1 or 0. `TRUE` indicates 1 and `FALSE` indicates 0

We can replace columns such as employed or unemployed to `1` or `0` to make it easier to filter data. To filter data using booleans we will use the `IS TRUE` or `IS NOT TRUE` keywords.

```sql
SELECT *
FROM table1
WHERE col1 IS NOT FALSE AND col2 IS TRUE
```