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To use REST-enabled SQL in APEX:

Install ORDS 19.x or later: Oracle REST Data Services (ORDS) must be installed and configured on the remote database.

AnInteractive Gridis the report type that supports searchable, customizable data display withinline editingat runtime using mouse or keyboard. Interactive Reports are searchable and customizable but lack inline editing. Classic Reports are static, and Smart Filters is a component, not a report type.

Key truths about Oracle APEX:

APEX eliminates middle tier application logic: APEX runs entirely within the Oracle Database, using PL/SQL and SQL for logic, bypassing traditional middle-tier servers (e.g., Java EE). This simplifies architecture and boosts performance.

You can build interactive reporting apps based on data from disparate systems: Via REST Data Sources, database links, or ORDS, APEX integrates data from external systems, enabling unified reporting (e.g., combining on-premises and cloud data).

Needs client software: False; APEX is web-based, requiring only a browser.

Static Content regions display fixed text with substitution:

B. &P1_ENAME.: The &ITEM_NAME. syntax substitutes the value of P1_ENAME at runtime (e.g., "Join me in congratulating: John as..."), correctly rendering the item’s value. The dot ensures proper parsing.

A. P1_ENAME: Treated as literal text, not substituted.

C. V('P1_ENAME'): A PL/SQL function, invalid in static content; it’s for server-side code.

Authorization Schemes in APEX can be evaluated at:

Once per page view: Checks authorization each time a page is rendered.

To enable an existing APEX application as a Progressive Web App (PWA), the mandatory step is:

Enable the PWA flag in the Application Definition: In the Application Definition attributes under "Progressive Web App," setting "Enable PWA" to "Yes" activates PWA features like installability, push notifications, and service worker generation. This is the foundational step, after which optional customizations (e.g., icons, manifest) can be added.

Friendly URLs: While recommended for modern apps, they’re not required for PWA functionality.

Custom JavaScript: Optional for offline capabilities, but not mandatory for basic PWA enablement.

The "Create App using Generative AI" feature in APEX Assistant leverages natural language processing to automate application creation. When invoked:

Create the application blueprint: APEX Assistant generates a foundational structure (blueprint) for the application, including pages, regions, and navigation, based on the user's natural language input (e.g., "Create an app to manage employees"). This blueprint serves as the starting point, which developers can refine.

Add a Dashboard page: The Assistant can interpret requests for specific page types, such as dashboards, and include them in the generated app. Dashboards typically feature charts, summaries, or key metrics, and this is a common task supported by the AI-driven creation process.

Create a Generative AI service: This is not a task performed during app creation; instead, it’s a prerequisite configuration step done separately in the Instance Administration settings.

Working Copies in APEX allow safe experimentation:

C. Get the latest updates from the Main application: "Refresh Working Copy" (in App Builder > Working Copies) pulls changes from the Main application into the Working Copy, ensuring it reflects the latest state (e.g., new pages, fixes) without overwriting Working Copy changes.

A. Merge with Main: Merging is a separate "Merge Working Copy" task.

An editable Interactive Grid synced with a REST Data Source (ORDS) maps CRUD operations to HTTP methods:

C. PUT: Updates an existing resource. When a user edits a row (e.g., changes SALARY), the grid sends a PUT request to the ORDS endpoint (e.g., /employees/101), updating the corresponding record.

A. POST: Creates new records, used for inserts, not updates.

Faceted search pages in APEX provide dynamic filtering. The true statements are:

Faceted Search supports the ability to filter columns storing multiple values: Facets canhandle multi-value columns (e.g., comma-separated lists or JSON arrays) using appropriate SQL (e.g., INSTR or JSON_TABLE), enabling complex filtering scenarios like tags or categories.

Facets map to specific database columns: Each facet is tied to a column in the underlying query (e.g., DEPTNO or JOB), ensuring data-driven filtering.

Multiple charts are not visible in the same region: False; multiple facets can display charts within the same region, depending on settings.