Before we see some of Oracle VBCS interview questions here is some background of the product.
VBCS Stands for Visual Builder Cloud service, It’s a cloud-based product from Oracle to develop and extend mobile and web responsive applications.
When launched initially in around 2016 it was called ABCS (Application builder cloud service) and had limited features. With time VBCS has become an integral part of Oracle’s roadmap for the development of new cloud applications.
VBCS now comes packaged with Oracle Integration Cloud (OIC) which also has PCS (Process Cloud Service).
Table of Contents
FAQs on Oracle Visual Builder Cloud Service
Now Lets checkout some VBCS Interview Questions which are commonly asked .
A Cloud PaaS offering from oracle for the development of mobile and web-based applications.
Oracle VBCS is a cloud-based PaaS product. The entities are Oracle Jet, VB Runtime, Business Objects which are accessed via Rest over HTTP. It also has an inbuilt Oracle Database (DBCS). VBCS also interfaces with other SaaS and PaaS applications
Image source: Oracle.com
A Business Object is a resource like a table in a database. This resource can be exposed as a rest web service to do CRUD operations.
Service connections can be used to connect to business objects.
Data management Tools – For managing business objects. Import/export of data.
Publishing tools – for managing the applications. Staging / Publishing.
Advanced tools – For Access configurations.
Collaboration tools – For working with multiple team members.
and testing tools for requests and responses of services.
– By using Service connections ( for external Rest services)
– By Business objects ( Internal custom Rest services)
The default operations created are
GET One
GET All
POST
DELETE
PATCH
In the business object diagram, or on the data view page of the business object.
This role allows any user to access the application. Roles can be set for access to the BO and control CRUD operations.
These are Conditional Rules, like Triggers to be executed at certain events on a business object. It consists of
Object Triggers
Object Validators
Field Validators
Object Functions
Log Scripting
A Field validator rule for checking the field value.
Create Business rule Object Trigger ( before Insert)
Staging is a testable version of the application before publishing. After publishing only versions can be created. The design view of the app gets disabled.
Action Chain is a series of actions with component behaviours that can be triggered on an event within the application.
Flow is the movement of controls within the application. Each flow can have a page for certain subprocess.
A common application would have Page Flows, Variables, Action Chains, UI components, Data Access call to Rest Endpoints.
When you define a variable a Type and Scope have to be specified. The scope can be Page, Application Flow or Action chain. The variables are enabled within the scope only.
Variables can be mapped to another variable in another Scope in Action chains.
An Individual Page has a lifecycle upon entering and leaving the page. Each state has a trigger
-beforeEnter
-Enter
-Interactable
-canExit
-beforeExit
The stages are:
-Development
-Staging
-Live
-Live Locked
-Pending Push Request
-Obselete
means the application was submitted to push the staged version and awaiting a response. Changes can still be done to the app.
We can add a custom JavaScript function in the JS section of a page.
We can Enable logs and use the inspect element from the browser console to see the UI logs.
Event listeners are used to trigger action chains based on some event on the application.
vbBeforeEnter
vbBeforeExit
vbAterNavigate
are example of few event listeners.
Event listeners can be defined in the below categories
Lifecycle Events
Page Events
Flow Events
Applications Events
In the Types tab of the page flow, hit + create type from EndPoint.
Using the page integration wizard of fusion the live URL of VB app can be added.
The security settings at the Business object-level provide token-based authentication option
The automatically created fields are
-Created by
-Creation Date
-Last updated by
-last updated date
One Blog Example is Shay Shmeltzer’s Blog. Check the books at the end of post.
Hope this post provides an idea of VBCS interview questions. Please share any new questions you have encountered in the interviews in the comments.
Oracle VBCS (Visual Builder Cloud Service) Trainings
If you are new to VBCS and looking for online training courses You can check the below training which provides a comprehensive understanding and can give you a head start in your VBCS career.
This course will help you to learn Oracle Visual Builder quickly and take you to through various real-time examples of web and mobile applications that help you to adopt the VB easily.
Below is a bundle course on OIC, PCS, and VBCS from K21 Academy
Covers: Provisioning OIC | Connectors | Agents | FTP Adapters | File Adapter Database Adapter | SaaS Adapter (Salesforce) | Troubleshooting | Customer Case Study | Security | Monitoring Integration
With 11 Lessons on PCS and 12 Lessons on VBCS.
Books
Suggested Reading: OIC Interview questions
thanks a ton