Question

Multiple schema function

Asked by: bungy_1

Trying to write a PLSQL function in Shema A and select data from Schema B.  I have read privileges in scheam B but cannot create a function.

CREATE OR REPLACE FUNCTION SCHEMA_A.GET_DEPT (EMP_NO varchar) RETURN NUMBER IS
DEPARTMENT NUMBER;
BEGIN
   select DEPARTMENT INTO DEPARTMENT 
   from SCHEMA_B.EMPLOYEE_TBL
   where EMP_NO = (EMP_NO);
   RETURN DEPARTMENT;
   EXCEPTION
     WHEN NO_DATA_FOUND THEN
       NULL;
     WHEN OTHERS THEN
       RAISE;
END GET_DEPT;
/

                                  
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Asked On
2009-10-09 at 10:40:01ID24799987
Topic

PL / SQL

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: ytarkanPosted on 2009-10-10 at 00:36:56ID: 25541191

Your PLSQL code is correct. Are you sure you can log in using SchemaA user and select from SchemaB.Employee_Tbl ?!
This is certainly an access right problem.

 

by: markgeerPosted on 2010-02-05 at 19:42:19ID: 26501164

It depends on how the "read privileges" were granted.  If schema A has permission via a role, then that is exactly what will happen: you will be able to select from chema B using an SQL query in SQL*Plus or TOAD or SQL Developer, etc. But, in order to do this same select in PL\SQL, you must have a direct grant from schema B to schema A for this table, since PL\SQL does *NOT* use role-based security.  Why not?  I don't know, but that's the documented way that Oracle security is designed to work .

20120131-EE-VQP-002

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