elasticsearch/docs/reference/query-languages/sql/sql-operators-logical.md

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---
mapped_pages:
- https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-operators-logical.html
---
# Logical operators [sql-operators-logical]
Boolean operator for evaluating one or two expressions.
## `AND` [sql-operators-and]
```sql
SELECT last_name l FROM "test_emp" WHERE emp_no > 10000 AND emp_no < 10005 ORDER BY emp_no LIMIT 5;
```
## `OR` [sql-operators-or]
```sql
SELECT last_name l FROM "test_emp" WHERE emp_no < 10003 OR emp_no = 10005 ORDER BY emp_no LIMIT 5;
```
## `NOT` [sql-operators-not]
```sql
SELECT last_name l FROM "test_emp" WHERE NOT emp_no = 10000 LIMIT 5;
```