linux下c语言查询mysql数据库

#include<stdio.h>

#include<mysql.h>

int main(int argc,char **argv){

   MYSQL mysql_conn;

   MYSQL_RES *mysql_result;

   MYSQL_ROW mysql_row;

   char execsql[256];

   int f1,f2,num_row,num_col;

   

   if(mysql_init(&mysql_conn)!=NULL)

    {

        if(mysql_real_connect(&mysql_conn,"localhost","root","111111","test",MYSQL_PORT,NULL,0)!=NULL)

          {

              printf("connect success!!!\n");

              sprintf(execsql,"select * from info");

              if(mysql_query(&mysql_conn,execsql)==0)

              {

                 printf("query success!\n");

                 mysql_result=mysql_store_result(&mysql_conn);

                 num_row=mysql_num_rows(mysql_result);

                 num_col=mysql_num_fields(mysql_result);

                 printf("row: %d,col: %d\n",num_row,num_col);

                    for(f1=0;f1<num_row;f1++)

                       {

                          mysql_row=mysql_fetch_row(mysql_result);

                            for(f2=0;f2<num_col;f2++)

                              {

                                printf("[Row %d,Col %d]==>[%s]\n",f1,f2,mysql_row[f2]);

                              }

                       }

             }else

              {

                 printf("query error!!!\n");

              }

        }else

          {

             printf("connect failed\n");

          }

  }else

     {

        printf("initial failed\n");

     }

     mysql_free_result(mysql_result);

     mysql_close(&mysql_conn);

     return 0;

}

编译： gcc xxx.c -o yyy I/usr/include/mysql/  -L/usr/lib/mysql/ -lmysqlclient