Procedure with select from mysql db link problem

Hi,
first of all Oracle is new to me so if there are better ways to do this every suggestion would help.
My problem is simple i cant use select from dblink inside a procedure.
In Oralce SQL Developer 1.5.5:
Im using oracle 11g and mysql 5.5.13 with mysql odbc 5.1
in both db the user is root
CREATE PUBLIC DATABASE LINK "MYSQL"
CONNECT TO "root" IDENTIFIED BY "****"
AUTHENTICATED BY "root" IDENTIFIED BY "****"
USING 'mysql';
select * from t1@mysql;
run; -> result OK
select "MAXID" from t1@mysql where "TNAME"='first';
run; -> result OK
create or replace
PROCEDURE T1_IDS_PROC AS
maxi number;
BEGIN
select "MAXID" into maxi from t1@mysql where "TNAME"='first';
END T1_IDS_PROC;
compile -> not working:
Fehler(7,3): PL/SQL: SQL Statement ignored
Fehler(7,47): PL/SQL: ORA-00904: "TNAME": unknown identifier
How to solve this?

Thanks for replay,
yes the owner of the procedure can acces the remote table.
I can use
select count(*) into i from t1@mysql
inside the procedure, but if i use specific columns inside the select i cant compile.
Why i need double quote?
I dont know if i need them but i read some tutorial for dblink to mysql and there was explanied
Oracle use upercase names and Mysql is case sensitive for odbc 5.1 so i have to double qoute mysql names.
But with or without double qoute it dont work inside procedures ;(

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