> 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-prepared-statement-functions/mysql_stmt_field_count.md).

# mysql\_stmt\_field\_count

## Syntax

```c
unsigned int mysql_stmt_field_count(MYSQL_STMT * stmt);
```

## Parameter

* `stmt` - a statement handle, which was previously allocated by [mysql\_stmt\_init()](/docs/connectors/mariadb-connector-c/api-prepared-statement-functions/mysql_stmt_init.md).

## Description

Returns the number of fields in a result set of a prepared statement.

## Return Value

Number of fields or zero if the prepared statement has no result set.

{% hint style="info" %}
The number of fields will be available after calling [mysql\_stmt\_prepare()](/docs/connectors/mariadb-connector-c/api-prepared-statement-functions/mysql_stmt_prepare.md)

`mysql_stmt_field_count()` returns zero for `UPSERT` statements which don't produce a result set.
{% endhint %}

## See Also

* [mysql\_stmt\_prepare()](/docs/connectors/mariadb-connector-c/api-prepared-statement-functions/mysql_stmt_prepare.md)
* [mysql\_stmt\_param\_count()](/docs/connectors/mariadb-connector-c/api-prepared-statement-functions/mysql_stmt_param_count.md)

{% @marketo/form formId="4316" %}