mysql_use_result

Name

mysql_use_result - returns an unbuffered result set

Synopsis

#include <mysql.h>

MYSQL_RES * mysql_use_result(MYSQL * mysql);

Description

Used to initiate the retrieval of a result set from the last query executed using the mysql_real_query() function on the database connection. Either this or the mysql_store_result() function must be called before the results of a query can be retrieved, and one or the other must be called to prevent the next query on that database connection from failing.

Parameters

• mysql is a connection identifier, which was previously allocated by mysql_init() and connected by mysql_real_connect().

Notes

The mysql_use_result() function does not transfer the entire result set. Hence several functions like mysql_num_rows() or mysql_data_seek() cannot be used. mysql_use_result() will block the current connection until all result sets are retrieved or result set was released by mysql_free_result().

Return value

Returns an unbuffered result set or NULL if an error occurred.

See also

• mysql_store_result()
• mysql_free_result()