How to implement a request?

Question

Oracle

The question is, there are two queries, the first query displays the dates, the problem is that you need to print the calculation in the second query for each date from the first one.
1. how to transfer the result of the first query to the second one
2. how to implement a cycle so that it displays the result that can be uploaded to excel

; the union is not suitable, these queries are each separately executed for quite a long time, by combining it is generally impossible to wait for the result.

I also want to ask for some simple example so that you can understand, or at least hint which topic to study

Answer 1

What has fundamentally changed since your question?