dbconnect.cpp

mysql controll. connection and sql

#define SOCKET int

#include <string.h>
#include <stdio.h>
#include <mysql.h>

#pragma comment(lib, "libmysql.lib")
#pragma comment(lib, "ws2_32.lib")   

#define DB_HOST ""
#define DB_USER ""
#define DB_PASS ""
#define DB_NAME ""

#define SQL_CREATE_TABLE "CREATE TABLE `mysql_api_test` (\
    `id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY ,\
    `num` INT NULL ,\
    `string` VARCHAR( 20 ) NULL \
    ) TYPE = MYISAM ;" //"
#define SQL_INSERT_RECORD "INSERT INTO `mysql_api_test` ( `id` , `num` , `string` ) \
    VALUES (\
    NULL , '%d', '%s'\
    );" //"
#define SQL_SELECT_RECORD "SELECT * FROM `mysql_api_test`"
#define SQL_DROP_TABLE "DROP TABLE `mysql_api_test`"

int main()
{
    MYSQL *connection=NULL, conn;
    MYSQL_RES *sql_result;
    MYSQL_ROW sql_row;
    int query_stat;
    int i;

    char query[255];

    mysql_init(&conn);

    // DB 楷搬
    connection = mysql_real_connect(&conn, DB_HOST,
        DB_USER, DB_PASS,DB_NAME, 3306,(char *)NULL, 0);
    if(connection==NULL)
    {
        fprintf(stderr, "Mysql connection error : %s", mysql_error(&conn));
        return 1;
    }

    // 抛捞喉 积己
    query_stat=mysql_query(connection,SQL_CREATE_TABLE);
    if (query_stat != 0)
    {
        fprintf(stderr, "Mysql query error : %s", mysql_error(&conn));
        return 1;
    }

    // 饭内靛 火涝
    for(i=0;i<5;i++)
    {
        sprintf(query,SQL_INSERT_RECORD,100+i,"救崇窍技夸 瘤倒胶鸥抗夸~");
        query_stat = mysql_query(connection, query);
        if (query_stat != 0)
        {
            fprintf(stderr, "Mysql query error : %s", mysql_error(&conn));
            return 1;
        }
    }

    // 伎泛飘
    query_stat=mysql_query(connection,SQL_SELECT_RECORD);
    if (query_stat != 0)
    {
        fprintf(stderr, "Mysql query error : %s", mysql_error(&conn));
        return 1;
    }

    // 搬苞 免仿
    sql_result=mysql_store_result(connection);
    while((sql_row=mysql_fetch_row(sql_result))!=NULL)
    {
        printf("%2s %2s %s\n",sql_row[0],sql_row[1],sql_row[2]);
    }
    mysql_free_result(sql_result);

    // 抛捞喉 昏力
    query_stat=mysql_query(connection,SQL_DROP_TABLE);
    if (query_stat != 0)
    {
        fprintf(stderr, "Mysql query error : %s", mysql_error(&conn));
        return 1;
    }

    // DB 楷搬 摧扁
    mysql_close(connection);
    return 0;
}