# <=

## Syntax

```sql
<=
```

## Description

Less than or equal operator. Evaluates both SQL expressions and returns `1` if the left value is less than or equal to the right value and `0` if it is not, or `NULL` if either expression is `NULL`. If the expressions return different data types, (for instance, a number and a string), performs type conversion.

When used in row comparisons these two queries return the same results:

```sql
SELECT (t1.a, t1.b) <= (t2.x, t2.y) 
FROM t1 INNER JOIN t2;

SELECT (t1.a < t2.x) OR ((t1.a = t2.x) AND (t1.b <= t2.y))
FROM t1 INNER JOIN t2;
```

## Examples

```sql
SELECT 0.1 <= 2;
+----------+
| 0.1 <= 2 |
+----------+
|        1 |
+----------+
```

```sql
SELECT 'a'<='A';
+----------+
| 'a'<='A' |
+----------+
|        1 |
+----------+
```

## See Also

* [Operator Precedence](https://mariadb.com/docs/server/reference/sql-structure/operators/operator-precedence)

<sub>*This page is licensed: GPLv2, originally from*</sub> [<sub>*fill\_help\_tables.sql*</sub>](https://github.com/MariaDB/server/blob/main/scripts/fill_help_tables.sql)

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