Looking at your documentation, is this what is required access?
CREATE USER C##IDASH PROFILE DEFAULT IDENTIFIED BY password DEFAULT TABLESPACE IDASHDATA TEMPORARY TABLESPACE IDASHTEMP ACCOUNT UNLOCK;
GRANT CONNECT TO C##IDASH;
GRANT CREATE SESSION TO C##IDASH;
GRANT CREATE TABLE TO C##IDASH;
ALTER USER C##IDASH QUOTA 1000M ON IDASHINDEX;
ALTER USER C##IDASH QUOTA 1000M ON IDASHDATA;
If so how would each of these be invoked?
Yes, we only use read & write permissions for the content of the tables at install time and during upgrades.