Procedure grant issue

Question

I have 2 schema (schema1 and schema2) in same databaase.if I create following procedure in schema1 for selecting a tale in schema2.
CREATE OR REPLACE PROCEDURE schema1.select_test
AUTHID CURRENT_USER as
v_test number;
BEGIN
select count(*)
into v_test
from schema2.table1;
end;
I created a role called SCH1_ROLE for schema1 and granted access of table1 to this role from schema2 but still if I compile the procedure it is saying table does not exist.Please help.

Answer 1

This question is asked many times per week, though there is a plethora of resources available answering it.
Roles are disabled during compilation of stored procedures, as roles are volatile.
There are three solutions to this in order of preference.
1 Make sure the owner of the procedure equals the owner of the table, grant execute privilege on the procedure.
This is called encapsulation
2 Create the procedure with the authid current_user pragma. However this will result in a parse the procedure is invoked for the first time
3 NOT preferred: grant SELECT privilege on the procedure directly, not using roles. This will result in a myriad of grants.
Solution 1 is the best solution.
Sybrand Bakker
Senior Oracle DBA