How to select data from a PL/SQL table

Hi,
I am selecting data from database after doing some screening i want to store it in a PL/SQL table (temporary area) and pass it to oracle reports.
Is there any way to select the data from a PL/SQL table as a cursor. Or is there any other way of holding the temporary data and then pass it back as a cursor.
Regards
Kamal

A PL/SQL "table" is anything but a table. Whoever came up with this term in PL/SQL to describe what is known as dynamic arrays (the correct programming terminology that existed since the 70's if not earlier and what is used in all other programming languages I'm familiar with)... well, several descriptions come to mind and none of them are complimentary.
You cannot "select" from a PL/SQL dynamic array as it is not a table within the Oracle context of tables.
Thus you need to convert (cast) a PL/SQL dynamic array into a temporary Oracle data set/table in order to select from it. This is in general a Bad Idea (tm). Oracle tables and SQL and concurrency controls and all that are especially designed for processing data. PL/SQL arrays is a very simplistic data structure with very limited usage. Why would you want to use that in SQL via a SELECT statement when you can use Oracle tables (or proper temp tables) instead? Besides that, it is also slow to cast a dynamic PL/SQL array into an Oracle SQL data set structure (context switching, copying of memory, etc).
The proper way to use PL/SQL to generate data sets for use via the SQL engine is pipelined table functions.
This is not to say that you should never use PL/SQL arrays and casting in SQL.. simply that you need to make sure that this is the correct and scalable way to do it. And that will also always be an exception to the rule when you do.

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