If you want to install Oracle SQL Developer on your Windows computer for free, check if you meet the requirements and then go through the instructions mentioned here.

The NEW_VALUE directive allows you to store data retrieved from an Oracle table as a variable inside the SQL*Plus script. Written by Donald Burleson, Contributor June 18, 2002 at 6:01 p.m. PT ...

There are two methods: use the Paulissoft Application Tools for Oracle (PATO) GUI with the pom.xml file from the project root and schema ORACLE_TOOLS as the EPC owner execute src/sql/install.sql ...