static int char_sql_init(void) {
	char_db_ = numdb_init();

	//DB connection initialized
	mysql_init(&mysql_handle);
	printf("Connect Character DB server");
	if(char_server_charset[0]) {
		printf(" (charset: %s)",char_server_charset);
	}
	printf("...\n");

	if(!mysql_real_connect(&mysql_handle, char_server_ip, char_server_id, char_server_pw,
		char_server_db ,char_server_port, (char *)NULL, 0)
	) {
		printf("%s\n",mysql_error(&mysql_handle));
		exit(1);
	} else {
		printf ("Connect Success! (Character Server)\n");
	}
	if(char_server_charset[0]) {
		sprintf(tmp_sql,"SET NAMES %s",char_server_charset);
		if (mysql_query(&mysql_handle, tmp_sql)) {
			printf("DB server Error (charset)- %s\n", mysql_error(&mysql_handle));
		}
	}

	return 1;
}