c语言实现数据库连接
#include <stdio.h>
#include <mysql/mysql.h>
int main(int argc, char *argv[])
{
MYSQL *conn = NULL;
if((conn = mysql_init(NULL)) == NULL)
{
printf("init error\n");
return 1;
}
const char *host = "localhost";
const char *user = "root";
const char *passwd = "1";
const char *db = "sq_test";
if(mysql_real_connect(conn,
host,
user,
passwd,
db,
0, NULL, 0) == NULL)
{
printf("connect error\n");
return 1;
}
mysql_query(conn, "select * from sq_students");
MYSQL_RES *result = NULL;
result = mysql_use_result(conn);
MYSQL_ROW row;
int j = 0;
while((row = mysql_fetch_row(result)) != NULL)
{
for(j = 0; j < mysql_num_fields(result); j++)
{
printf("%s ", row[j]);
}
printf("\n");
}
mysql_free_result(result);
mysql_close(conn);
return 0;
}