# ST\_WITHIN

## Syntax

```sql
ST_WITHIN(g1,g2)
```

## Description

Returns `1` or `0` to indicate whether geometry *`g1`* is spatially within geometry *`g2`*.

This tests the opposite relationship as [ST\_CONTAINS()](https://mariadb.com/docs/server/reference/sql-statements/geometry-constructors/geometry-relations/st-contains).

`ST_WITHIN()` uses object shapes, while [WITHIN()](https://mariadb.com/docs/server/reference/sql-statements/geometry-constructors/geometry-relations/within), based on the original MySQL implementation, uses object bounding rectangles.

## Examples

```sql
SET @g1 = ST_GEOMFROMTEXT('POINT(174 149)');

SET @g2 = ST_GEOMFROMTEXT('POLYGON((175 150, 20 40, 50 60, 125 100, 175 150))');

SELECT ST_WITHIN(@g1,@g2);
+--------------------+
| ST_WITHIN(@g1,@g2) |
+--------------------+
|                  1 |
+--------------------+

SET @g1 = ST_GEOMFROMTEXT('POINT(176 151)');

SELECT ST_WITHIN(@g1,@g2);
+--------------------+
| ST_WITHIN(@g1,@g2) |
+--------------------+
|                  0 |
+--------------------+
```

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