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c:mysql:mysql.h:mysql_info
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mysql_info

description of mysql_info

A character string containing additional information about the most recent query. NULL if no information about the request are available.

compile with gcc mysql_info.c -o mysql_info `mysql_config –cflags –libs` -Wall

#include <stdio.h> /* including standard library */ 
#include <mysql/mysql.h>
 
MYSQL *my;
 
int main( void ){
char host[20];
char user[20];
char pass[20];
 
my = mysql_init(NULL);
 
 
sprintf(host,"localhost");
sprintf(user,"username");
sprintf(pass,"password");
 
if (my == NULL ) {
printf("Cant initalisize MySQL\n");
return 1;
}
 
if( mysql_real_connect (my,host,user,pass,NULL,0,NULL,0)  == NULL) {
  printf("Error cant login\n");
  } else {
  printf("Login correct\n");
  }
 
mysql_select_db(my,"test");
mysql_query(my, "INSERT INTO `test`.`collection`"
	        " (`id`, `name`, `title`, `published`)"
		" VALUES (NULL, 'Demian', 'Debian 6.0', '2013-02-14');");
 
printf("MySQL Info: %s\n", mysql_info(my));
 
mysql_query(my, "UPDATE `test`.`collection`"
	        " SET name = 'Debian'"
		" WHERE `name` LIKE 'Demian';");
printf("MySQL Info: %s\n", mysql_info(my));
 
mysql_close(my);
return 0;
}

db for this mysql_info example

sql
--
-- Database: `test`
--
CREATE DATABASE `test` DEFAULT CHARACTER SET latin1 COLLATE utf8_general_ci;
USE `test`;
 
-- --------------------------------------------------------
 
--
-- Tablestructure for Table `collection`
--
 
CREATE TABLE IF NOT EXISTS `collection` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(90) NOT NULL,
  `title` varchar(255) NOT NULL,
  `published` date NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;

output of mysql_info c example

  Login correct
  MySQL Info: (null)
  MySQL Info: Rows matched: 1 Changed: 1 Warnings: 0
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c/mysql/mysql.h/mysql_info.txt · Last modified: 2013/02/26 16:34 by 158.181.88.241

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