c連線MYSQL例子
阿新 • • 發佈:2019-02-07
testsql.c:
/* testsql.c ** An example to use MYSQL C API
** Copyright 2004 Coon Xu.
** Author: Coon Xu
** Date: 05 Nov 2004
*/
#include <mysql.h>
#include <stdio.h>
int main()
{
MYSQL mysql; // need a instance to init
MYSQL_RES *res;
MYSQL_ROW row;
char *query;
int t,r;
// connect the database
mysql_init(&mysql);
if (!mysql_real_connect(&mysql,"localhost", "mmim", "mmim", "test",0,NULL,0))
{
printf( "Error connecting to database: %s/n",mysql_error(&mysql));
}
else
printf("Connected.../n");
// get the result from the executing select query
query = "select * from t1";
t = mysql_real_query(&mysql,query,(unsigned int) strlen(query));
if (t)
{
printf("Error making query: %s/n", mysql_error(&mysql));
}
else
printf("[%s] made.../n", query);
res = mysql_store_result(&mysql);
while(row = mysql_fetch_row(res))
{
for(t=0;t<mysql_num_fields(res);t++)
{
printf("%s ",row[t]);
}
printf("/n");
}
printf("mysql_free_result.../n");
mysql_free_result(res); //free result after you get the result
sleep(1);
// execute the insert query
query = "insert into t1(id, name) values(3, 'kunp')";
t = mysql_real_query(&mysql,query,(unsigned int) strlen(query));
if (t)
{
printf("Error making query: %s/n", mysql_error(&mysql));
}
else
printf("[%s] made.../n", query);
mysql_close(&mysql);
return 0;
}
/* testsql.c ** An example to use MYSQL C API
** Copyright 2004 Coon Xu.
** Author: Coon Xu
** Date: 05 Nov 2004
*/
#include <mysql.h>
#include <stdio.h>
int main()
{
MYSQL mysql; // need a instance to init
MYSQL_RES *res;
MYSQL_ROW row;
char *query;
int t,r;
// connect the database
mysql_init(&mysql);
if (!mysql_real_connect(&mysql,"localhost", "mmim", "mmim", "test",0,NULL,0))
{
printf( "Error connecting to database: %s/n",mysql_error(&mysql));
}
else
printf("Connected.../n");
// get the result from the executing select query
query = "select * from t1";
t = mysql_real_query(&mysql,query,(unsigned int) strlen(query));
if (t)
{
printf("Error making query: %s/n", mysql_error(&mysql));
}
else
printf("[%s] made.../n", query);
res = mysql_store_result(&mysql);
while(row = mysql_fetch_row(res))
{
for(t=0;t<mysql_num_fields(res);t++)
{
printf("%s ",row[t]);
}
printf("/n");
}
printf("mysql_free_result.../n");
mysql_free_result(res); //free result after you get the result
sleep(1);
// execute the insert query
query = "insert into t1(id, name) values(3, 'kunp')";
t = mysql_real_query(&mysql,query,(unsigned int) strlen(query));
if (t)
{
printf("Error making query: %s/n", mysql_error(&mysql));
}
else
printf("[%s] made.../n", query);
mysql_close(&mysql);
return 0;
}