How to deploy MOLAP cube with OWB?

Hi.
I'm having some questions about MOLAP in OWB.
1. Why OWB puts everything in snowflake? Every new dimension level will be in new table... Is this ok if I use 'level-based hierarchy'? If I use value-based-hierarchy will I have only one table per dimension?
2. When I try to deploy dimension an error occured:
Name
Action
Status
Log
DEMO_CUBE
Create
Error
ORA-20101: 10:20:14 ***Error Occured: Can not Create Aggregation Solve [b]SOLVE_DEMO_CUBE_MY_MEASURE2E29A0.SOLVE1.AGGREGATIONSOLVE. Solve Definition DEMO_CUBE.DEMO_CUBE_MY_MEASURE.AGGREGATIONDEFINITION does not Exist.
ORA-06512: at "MY_MOLAP_USER.OWB$XMLCLOB_MY_MOLAP_USER", line 311
ORA-06512: at "MY_MOLAP_USER.OWB$XMLCLOB_MY_MOLAP_USER", line 337
ORA-06512: at line 3
Cube have 3 dimension, what I need to set correctly?
3. Why I can't use multiple reference to a same dimension? For example in ROLAP (in fact table) I have 4 different dates (4 foreign key-s) and everything was ok, but how to do this in MOLAP?
4. How to store some text data in MOLAP cube. For example in ROLAP (fact) I had some text data. Do I need to create dimension (text dimension with domain value) in MOLAP, for every text data that was in ROLAP (fact).
Thanks.
Deep

1. For ROLAP OWB can create star or snowflake implemented dimensions. By default the wizard creates a star style implementation table (a single table).
2. Not sure why you are seeing this.
3. Need a different dimension for each dimension role (its an AW/ MOLAP restriction for now)
4. You can have a measure that has data type VARCHAR2 for example and define no aggregation for that measure.
Cheers
David

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I executed the same code in a different user and the MOLAP Cube was created successfully.
But, I donât know what is the privilege/role, that permits this second user to create a MOLAP cube with the package DBMS_AWM.
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======
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EXECUTE               |SYS     |DBMS_OBFUSCATION_TOOLKIT
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SELECT               |SYS     |V_$MYSTAT
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EXECUTE               |SYS     |DBMS_AQ
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EXECUTE               |SYS     |DBMS_AQELM
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EXECUTE               |SYS     |DBMS_DEFER_IMPORT_INTERNAL
EXECUTE               |SYS     |DBMS_REPCAT
EXECUTE               |SYS     |DBMS_RULE_EXIMP
EXECUTE               |SYS     |DBMS_SYS_ERROR
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DEBUG               |SYS     |INCEXP
DELETE               |SYS     |INCEXP
FLASHBACK          |SYS     |INCEXP
INDEX               |SYS     |INCEXP
INSERT               |SYS     |INCEXP
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REFERENCES          |SYS     |INCEXP
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UPDATE               |SYS     |INCEXP
ALTER               |SYS     |INCFIL
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