Chapter 1, What, Why, and How (WWH) of Visual Builder
If someone doesn't know JET, can they use VB?
It's not required to know JET; you just use the component to develop the UI interface.
Can the 5 GB of space in the embedded database be increased on request?
No, the 5 GB of space can't be increased. Switch the embedded database to point to other Oracle databases, such as Oracle DBaaS or Oracle ATP.
Chapter 2, Provisioning and Understanding the Visual Builder Instance
Why is a credit card required during account creation?
Credit cards are required for verification purposes only. Oracle will deduct only US $1 for verification purposes, which will be reimbursed after some time.