How to temporarily hod data

Hi,
Here is my requirement:
select bulk amount of data from table A.- I created a curos for this.
loop through the row of data in the cursor.
Do some analysis/validation
Insert the required data temporarily to a table or other object, until finish the analysis on all the row in cursor
End of loop
Once all the rows of Table A are validated, perform some aggregate query on the data that are stored temporarily
and insert the summary data to Table B.
Here my quetion is, What object should i use to store temporarily the data (there will be 3 fields - Emp_No,Grade,Sal)
And how to do aggregate function on that data. Select Emp_No,Sum(Sal) from <<Object>> group by Grade.
Oracel Version 10g
Thanks in advance.

BluShadow wrote:
Saying that however, a global temporary table will allow you to store the data temporarily, allow indexes to be used against it and allow you to do further SQL against it, far more easily than processing the data in collection types. Personally though, I would aim to be doing this as a single SQL statement. With the use of Analytical functions and/or the Model clause, it's possible to do almost anything.Need to echo what Blu is saying, as it is critical information.
SQL today, with features likes Blu mentioned, is SQL On Steroids Wearing A Power Ranger Suit.
As SQL sits next to the data to crunch, the path between it and the data is minute.. any other language, even PL/SQL, is a lot further away. And they need to use SQL to fetch the data for them to crunch. So they will always be slower than native SQL.
Database performance is thus directly related to how well you apply SQL to your problem.

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