Oracle DB View in Repository physical layer. Missing grant.

Hello,
I have a table and a view in my Oracle DB Schema and in my connection pool (obi repository - phyiscal layer).
When I use OBI Answers I can see the data in the table, so all the connection information
is correct.
However, when I want to see the data in the view using OBI Answers, I see the following error:
OPR4ONWY:U9IM8TAC:OI2DL65P ORA-00942: table or view does not exist
I have the strong suspicion that the technical user that is used to connect to the Oracle DB
does not have rights to the schema from which the view selects. In other words, the view
uses data from other schemas and the grants are missing. Thats my idea, why the data of the view is not displayed
but in the same connection pool the data in the table is displayed fine.
If my suspicion is right, I wonder what is the user that I should be granting to?
The view works fine when I check it with SQLDeveloper.
Thanks for any help.

The base tables of the aliases are correct. but the problem is not between alias or not.
its between Oracle db view vs. table and the views are also specified as "physical table".
Instead of the "phyiscal table" I changed the table type to selection and
wrote a query that is very very similar to what is in the view:
Oracle SQL view query
SELECT 997 AS "ID",
2 AS "LOADID",
SYSTIMESTAMP AS "TIME_STAMP",
NULL AS "TYPOF",
'2' AS "KEYVAL",
2 AS "SORTING",
'01.03.2012' AS "DESCRI"
FROM DUAL
--Data types in OBI repository
Name Typ Length
ID Numeric
DESCRI Varchar 300
LOADID Numeric
SORTING Numeric
KEYVAL Varchar 20
TYPOF Varchar 20
TIME_STAMP Timestamp
with the above query I also get the incorrect data type error.
I have a strong feeling it might be something with the time stamps.
even if the data is the same in the tables.

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Oracle DB View in Repository physical layer. Missing grant.

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