Skip to main content

Building a Professional Resume Builder with Oracle APEX

Oracle APEX · Technical Blog

Building a Professional Resume Builder with Oracle APEX

A deep dive into how APEX Collections, AI-powered text generation, and Dynamic Content Regions come together to create a seamless, end-to-end resume building experience.

Overview

The Resume Builder is a full-featured web application built on Oracle APEX that guides users through the entire resume creation process - from entering personal details to downloading a professionally formatted document. Rather than saving data prematurely to permanent tables, the application uses APEX Collections to temporarily hold user inputs across each step, keeping the experience lightweight, session-aware, and easy to manage.

User data is organized into the following dedicated sections:

Section Description
Personal InformationName, designation, and profile details
Contact InformationPhone, email, location, and social links
Educational InformationDegrees, institutions, and academic history
Skill InformationTechnical and soft skills
Professional SummaryAI-generated or manually written summary
Experience DetailsExperienced candidates — work history and roles
Academic ProjectsFreshers - key projects completed during studies
Internship DetailsFreshers - internship roles and responsibilities
Design note: Each section maps to a separate APEX Collection, keeping validation, retrieval, and data management clean and independent throughout the session.

Resume Types: Fresher vs. Experienced

On the home page, users are prompted to select their Resume Type. This single choice dynamically controls the entire structure of their resume - showing only the sections relevant to them.

💼 Experienced

  • Experience Details section is shown
  • Users log work history, roles & responsibilities
  • Academic Projects & Internships are hidden

🎓 Fresher

  • Experience Details section is hidden
  • Academic Projects section is shown
  • Internship Details section is shown

This dynamic behaviour ensures every user sees only what's relevant to them, reducing clutter and simplifying the data entry process considerably.

AI-Powered Features

AI Feature 1

Professional Summary Generation

One of the standout features of this application is the AI-powered Professional Summary generator, built using Oracle APEX's built-in Generate Text action. Rather than asking users to write their own summary from scratch, the AI analyses all previously entered data - education, skills, projects, and work experience — and produces a polished, role-appropriate summary automatically.

  • For Fresher resumes - highlights academic achievements, projects, and internship experience.
  • For Experienced resumes - emphasises professional background, skills, and career progression.
AI Feature 2

ZIP Code Lookup

Address entry is often tedious, especially when users need to identify the correct postal (PIN) code for their area. When a user selects a district, the AI retrieves all official postal codes associated with that district and presents them in a formatted table alongside their corresponding Post Office names. Since a single district can have multiple post offices and PIN codes, this feature saves significant time and eliminates manual searching entirely.

Technical Implementation

Data Storage with APEX Collections

All user-entered data is stored in APEX Collections - temporary, session-scoped data structures that persist across page submissions without writing to permanent database tables. This design approach offers several key advantages:

  • Isolation - each section's data is independently managed and validated.
  • Flexibility - users navigate between sections freely without losing progress.
  • Clean architecture - data is only exported once the resume is fully complete.

Dynamic Resume Rendering

The resume layout is built using Oracle APEX's Dynamic Content Region, which generates custom HTML at runtime using PL/SQL. During rendering, data from the APEX Collections is merged into HTML placeholders, producing a fully formatted, live resume preview - no page reload required. This makes it straightforward to support different resume templates by simply adjusting the PL/SQL logic.

Security: Preventing XSS Attacks

Since the application renders user-supplied text directly into HTML, protecting against Cross-Site Scripting (XSS) is critical. All user input is escaped using Oracle APEX's built-in APEX_ESCAPE.HTML function, which converts special characters such as <, >, ", and & into safe HTML entities before they are rendered on the page.

This ensures that even if a user enters malicious script tags or HTML, those characters are rendered as plain text - never executed.

Resume Download

Once the resume is previewed and approved, users can export it using the application's Download Resume feature. The completed, formatted resume is made available for download in a print-ready format, suitable for sharing with recruiters or attaching to job applications.

Key Oracle APEX Features Used

APEX Collections Temporarily stores resume data across all sections during the user session
AI Generate Text Generates a personalised, role-appropriate professional summary automatically
Dynamic Content Region Renders the resume as a live HTML preview using PL/SQL at runtime
APEX_ESCAPE.HTML Sanitises all user input to prevent Cross-Site Scripting (XSS) vulnerabilities
PL/SQL Powers all business logic, data processing, and dynamic HTML generation
Download Functionality Exports the completed, formatted resume for sharing or printing
▶ Live Demo 📄 GitHub Code

Summary

This Resume Builder demonstrates how Oracle APEX can be used to build a sophisticated, AI-enhanced application without leaving the platform. By combining APEX Collections for session-aware storage, the Generate Text action for AI-powered content, Dynamic Content Regions for flexible rendering, and robust security via APEX_ESCAPE.HTML - this application delivers a smooth, professional experience from start to finish.

Oracle APEX APEX Collections AI Generate Text PL/SQL XSS Prevention Dynamic Content

Comments

Post a Comment

Popular posts from this blog

APEX - Tip: Fix Floating Label Issue

Oracle APEX's Universal Theme provides a modern and clean user experience through features like floating (above) labels for page items.  These floating labels work seamlessly when users manually enter data, automatically moving the label above the field on focus or input.  However, a common UI issue appears when page item values are set Dynamically the label and the value overlap, resulting in a broken and confusing user interface. once the user focuses the affected item even once, the label immediately corrects itself and displays properly. When an issue is reported, several values are populated based on a single user input, causing the UI to appear misaligned and confusing for the end user. Here, I'll share a few tips to fix this issue. For example, employee details are populated based on the Employee name. In this case, the first True Action is used to set the values, and in the second True Action, paste the following code setTimeout(function () {   $("#P29_EMAIL,#P29_...
Post a Comment
Read more

Oracle APEX UI Tip: Display Page Title Next to the APEX Logo

In most Oracle APEX applications, every page has a Page Title displayed at the top. While useful, this title occupies vertical space, especially in apps where screen real estate matters (dashboards, reports, dense forms). So the goal is simple: Show the page title near the APEX logo instead of consuming page content space. This keeps the UI clean, professional, and consistent across all pages. Instead of placing the page title inside the page body:         ✅ Fetch the current page title dynamically         ✅ Display it right after the APEX logo         ✅ Do it globally, so it works for every page All of this is achieved using:         ✅ Global Page (Page 0)         ✅ One Dynamic Action         ✅ PL/SQL + JavaScript Simple, effective, and reusable. 1️⃣ Create a Global Page Item On Page 0 (Global Page), create a hidden item:      P0_PAGE_TITLE This item wi...
Post a Comment
Read more

Building a Custom Debug Package for Oracle APEX Using PL/SQL

While developing Oracle APEX applications, debugging page processes and backend PL/SQL logic can be challenging—especially when values are lost between processes or execution flow is unclear.  Although DBMS_OUTPUT is useful, it doesn’t work well inside APEX runtime. To solve this, I built a custom PL/SQL debug Package that logs execution flow and variable values into a database table.  This approach helps trace exactly where the code reached, what values were passed, and whether a block executed or not - even inside page-level processes and packaged procedures Why a Custom Debug Package? Works seamlessly inside Oracle APEX page processes Persists debug information even after session ends Helps trace execution flow Captures runtime values Can be turned ON/OFF dynamically Does not interrupt business logic The Package consists of:- Debug Table                         -  Stores debug messages Sequence ...
Post a Comment
Read more