Teradata equivalent for calling a store proc and inserting results into a temp table?

I am new to Teradata and I am experiencing issues trying to insert data from a store proc into a temp table

Replace substring in SQL Teradata not working

I’m trying to replace/remove +-signs in all occurences in a variable:

Does a self-join, query the same table once or twice?

Assuming I’m only joining a table onto itself once, am I pulling data from the table once or twice?

Find max consecutive days with no sales in SQL

DBMS I am using is Teradata.