mysql_num_rows - mariadb-corporation/mariadb-connector-c GitHub Wiki

mysql_num_rows - Returns number of rows in a result set.

#include <mysql.h>

my_ulonglong mysql_num_rows(MYSQL_RES * );

Returns number of rows in a result set.

• MYSQL_RES - a result set identifier returned by mysql_store_result() or mysql_use_result().

The behaviour of mysql_num_rows() depends on whether buffered or unbuffered result sets are being used. For unbuffered result sets, mysql_num_rows() will not return the correct number of rows until all the rows in the result have been retrieved.

• mysql_affected_rows()
• mysql_use_result()
• mysql_store_result()