Transpose Text-to-Column of Oracle table using ODI

Question

Here is what I am trying to do:
Source table has the columns:
Time, Blob, Item-ID
Expected Target has the columns:
Time, Data, Item1, Item2,...ItemN
1. Where Item1, Item2 are as illustrated: Say for example source table has 10 rows of different IDs, there would be 10 columns in Target table starting with Item1 to Item10. (Assuming no. of different IDs is fixed)
How to do this? I am learning ODI for few weeks now. I understand the basics and terminologies but don't know how to do this.
2. Data (of Target table) is a return value of a stored procedure that would convert the Blob (of Source table)
The stored procedure is ready but how to use the procedure to get the target from the source.
Any help/direction would be greatly helpful.
- Venkat
Edited by: user12397263 on Dec 29, 2009 11:53 PM

Answer 1

1. A question: How would you determine which row goes to which column? You can say that 1st row value becomes item1, but without an ORDER BY row 1 will always be random. If you have a way to ensure the order of the rows (let us say a column that can store the rownum) then all you need is that in the interface you need to specify for n-th item mapping should be MAX(Case when rownum = n then item else ' ' end). That should take care of it.
2. There is a way to do this in ODI. Because you are a newbie I would recommend that you build a temp table and use a PL/SQL block to generate the data from blob and use the temp table as another source table that can update data column in the target table.