> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/connectors/mariadb-connector-c/api-functions/mysql_num_fields.md).

# mysql\_num\_fields

## Syntax

```c
unsigned int mysql_num_fields(MYSQL_RES * );
```

## Parameter

* `MYSQL RES *` - A result set identifier returned by [mysql\_store\_result()](/docs/connectors/mariadb-connector-c/api-functions/mysql_store_result.md) or [mysql\_use\_result()](/docs/connectors/mariadb-connector-c/api-functions/mysql_use_result.md).

## Description

Returns number of fields in a specified result set.

## Return Value

Returns number of fields.

## See Also

* [mysql\_fetch\_field()](/docs/connectors/mariadb-connector-c/api-functions/mysql_fetch_field.md)
* [mysql\_field\_count()](/docs/connectors/mariadb-connector-c/api-functions/mysql_field_count.md)

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