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c連線MYSQL例子

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;
}