# SQL Logical Operators

SQL Logical Operators evaluate boolean conditions to filter data, primarily used in `WHERE` and `HAVING` clauses. They are fundamental for constructing precise data retrieval queries and controlling program  flow based on dataset characteristics. Understanding their behavior is essential for writing effective and performant database interactions.

## Logical Operator Keywords

| Logical Operator | Explanation                                                        |
| :--------------- | :----------------------------------------------------------------- |
| ALL              |  Returns TRUE if all comparisons in a subquery are TRUE.          |
| ANY              | Returns TRUE if any comparison in a subquery is TRUE.              |
| AND              | Returns TRUE if both boolean expressions are TRUE.                  |
| EXISTS           | Evaluates to TRUE if the subquery returns one or more rows.        |
| IN               | Checks if a value matches any value in a list or subquery.         |
| BETWEEN          |  Tests if a value is within a given range (inclusive).              |
| NOT              | Negates a boolean expression.                                      |
| OR               | Returns TRUE if either boolean expression is TRUE.                 |