Plain SQL Conditional WHERE Clause with two sub-selects

Question

Hi SQL Experts,
I need a bit quick of help with a query.
This is a "select" statement for an OBI repository phyiscal table source object.
So I cant put PL/SQL or Stored Procedures in it. I just need
to have two different conditions/selects depending on the user role (this information comes
from the session).
The above, does not work:
--------------ORA00905. 00000 -  "missing keyword"
  SELECT OFFICENO FROM orgunit
  WHERE
  CASE WHEN 'SESSION_VARIABLE' LIKE '%globalmanager%' THEN  
        ASSIGNEDOFFICES =
        SELECT DISTINCT ASSIGNEDOFFICES
        FROM USERSTABLE INNER JOIN orgunit ON
        orgunit.OFFICEKEY = USERSTABLE.OFFICEKEY
        WHERE USERSTABLE.USERNAME ='VALUEOF(NQ_SESSION.USER)'
  ELSE
        OFFICENO =
        SELECT DISTINCT OFFICENO FROM USERSTABLE
        INNER JOIN orgunit ON
        orgunit.OFFICEKEY = USERSTABLE.OFFICEKEY
        WHERE USERSTABLE.USERNAME ='VALUEOF(NQ_SESSION.USER)'
  END;   
Can anyone help?

Answer 1

Hi,
I can't tell what you want to do just by looking at code that doesn't do it. Maybe:
SELECT  officeno
FROM    orgunit
WHERE   (    session_variable  LIKE '%globalmanager%'
        AND  assignedofficies  IN
                 SELECT  assignedoffices
                 FROM    usertable  u1
                 JOIN    orgunit    o1  ON o1.officekey = u1.officekey
                 WHERE   u1.username    = 'VALUEOF(NQ_SESSION.USER)'
OR      (    NVL ( session_variable
                 )        NOT LIKE '%globalmanager%'
        AND  officeno        IN
                 SELECT  officeno
                 FROM    usertable  u2
                 JOIN    orgunit    o2  ON  o2.officekey = u2.officekey
                 WHERE   u2.username   = 'VALUEOF(NQ_SESSION.USER)'
There might be some simpler and more efficient way, depending on your tables and your reuirements.
The condition u2.username   = 'VALUEOF(NQ_SESSION.USER)' is almost certainly not what you really want.
Whenever you have a question, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) for all tables involved, and also post the results you want from that data.
Explain, using specific examples, how you get those results from that data.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ: https://forums.oracle.com/message/9362002#9362002