MYSQL_RES*result;unsignedintnum_fields;unsignedintnum_rows;if(mysql_query(&mysql,query_string)){// error}else// query succeeded, process any data returned by it{result=mysql_store_result(&mysql);if(result)// there are rows{num_fields=mysql_num_fields(result);// retrieve rows, then call...
MYSQL_RES*result;unsignedintnum_fields;unsignedintnum_rows;if(mysql_query(&mysql,query_string)){// error}else// query succeeded, process any data returned by it{result=mysql_store_result(&mysql);if(result)// there are rows{num_fields=mysql_num_fields(result);// retrieve rows, then call...
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C API 函数概览 my_init() mysql_affected_rows() mysql_autocommit() mysql_change_user() mysql_character_set_name() mysql_client_find_plugin() mysql_client_register_plugin() mysql_close() mysql_commit() mysql_connect() mysql_create_db() mysql_data_seek() mysql_debug() mysql_drop_db() ...
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Up C API Basic Function Descriptions Next mysql_num_rows() 5.4.48 mysql_num_fields() unsigned int mysql_num_fields(MYSQL_RES *result) To pass a MYSQL* argument instead, use unsigned int mysql_field_count(MYSQL *mysql). Description Returns the number of columns in a result set. You...
MYSQL_RES*result;unsignedintnum_fields;unsignedintnum_rows;if(mysql_query(&mysql,query_string)){// error}else// query succeeded, process any data returned by it{result=mysql_store_result(&mysql);if(result)// there are rows{num_fields=mysql_num_fields(result);// retrieve rows, then call...
MySQL Connector/Python Developer Guide/Connector/Python C Extension API Reference/ _mysql_connector.MySQL.num_fields() Method 11.31 _mysql_connector.MySQL.num_fields() Method Syntax: count=ccnx.num_fields() Returns the number of columns in the active result set....
MYSQL_RES*result;unsignedintnum_fields;unsignedintnum_rows;if(mysql_query(&mysql,query_string)){// error}else// query succeeded, process any data returned by it{result=mysql_store_result(&mysql);if(result)// there are rows{num_fields=mysql_num_fields(result);// retrieve rows, then call...
MYSQL_RES*result;unsignedintnum_fields;unsignedintnum_rows;if(mysql_query(&mysql,query_string)){// error}else// query succeeded, process any data returned by it{result=mysql_store_result(&mysql);if(result)// there are rows{num_fields=mysql_num_fields(result);// retrieve rows, then call...