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#include <mysql.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
void show_error(MYSQL *mysql)
{
printf("Error(%d) [%s] \"%s\"", mysql_errno(mysql),
mysql_sqlstate(mysql),
mysql_error(mysql));
mysql_close(mysql);
exit(-1);
}
int main(int argc, char *argv[])
{
MYSQL *mysql;
const char *query;
MYSQL_RES *result;
mysql= mysql_init(NULL);
if (!mysql_real_connect(mysql, "localhost", "example", "example_pw",
"example_db", 0, "/tmp/mysql.sock", 0))
show_error(mysql);
query= "DROP TABLE IF EXISTS affected_rows";
if (mysql_real_query(mysql, query, strlen(query)))
show_error(mysql);
query= "CREATE TABLE affected_rows (id int not null, my_name varchar(50),"
"PRIMARY KEY(id))";
if (mysql_real_query(mysql, query, strlen(query)))
show_error(mysql);
/* Affected rows with INSERT statement */
query= "INSERT INTO affected_rows VALUES (1, \"First value\"),"
"(2, \"Second value\")";
if (mysql_real_query(mysql, query, strlen(query)))
show_error(mysql);
printf("Affected_rows after INSERT: %lu\n",
(unsigned long) mysql_affected_rows(mysql));
/* Affected rows with REPLACE statement */
query= "REPLACE INTO affected_rows VALUES (1, \"First value\"),"
"(2, \"Second value\")";
if (mysql_real_query(mysql, query, strlen(query)))
show_error(mysql);
printf("Affected_rows after REPLACE: %lu\n",
(unsigned long) mysql_affected_rows(mysql));
/* Affected rows with UPDATE statement */
query= "UPDATE affected_rows SET id=1 WHERE id=1";
if (mysql_real_query(mysql, query, strlen(query)))
show_error(mysql);
printf("Affected_rows after UPDATE: %lu\n",
(unsigned long) mysql_affected_rows(mysql));
query= "UPDATE affected_rows SET my_name=\"Monty\" WHERE id=1";
if (mysql_real_query(mysql, query, strlen(query)))
show_error(mysql);
printf("Affected_rows after UPDATE: %lu\n",
(unsigned long) mysql_affected_rows(mysql));
/* Affected rows after select */
query= "SELECT id, my_name FROM affected_rows";
if (mysql_real_query(mysql, query, strlen(query)))
show_error(mysql);
result= mysql_store_result(mysql);
printf("Affected_rows after SELECT and storing result set: %lu\n",
(unsigned long) mysql_affected_rows(mysql));
mysql_free_result(result);
/* Affected rows with DELETE statment */
query= "DELETE FROM affected_rows";
if (mysql_real_query(mysql, query, strlen(query)))
show_error(mysql);
printf("Affected_rows after DELETE: %lu\n",
(unsigned long) mysql_affected_rows(mysql));
mysql_close(mysql);
return 0;
}
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