Column information in SQL

Dear Friends,
I want to know at runtime what is the total number of columns selected in a SELECT query as well as their names?
Please let me know if there is any method at all to accomplish this.
Thanks!
Yours truly,
Pankaj Dwivedi.

Is there an Oracle version involved in this question?
Why do you care? What are you going to do with this information if you have it?
The question generates more questions than answers without knowing more about what you are trying to do.

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