50 Oracle APEX Cloud Developer Professional Practice Questions: Question Bank 2025

You need to allow external users to run an APEX application in a workspace without giving them any ability to develop or access SQL Workshop. What is the best practice approach?

A report page must show orders for the currently logged-in user only. The application uses APEX accounts. Which approach is most appropriate and maintainable?

You want to provide a page where users can insert and update rows in a single table with minimal custom code. Which page type is most suitable?

A user clicks a button to navigate to another page and pass a primary key value for editing. What is the recommended APEX mechanism to pass the value?

You need to run a PL/SQL procedure after a user submits a page, but only when a specific button is pressed (for example, APPROVE). What is the best way to implement this?

A page contains multiple regions, and you need to prevent unnecessary database calls when the user is not authorized to see a sensitive region. Which approach is most effective?

An Interactive Report is taking a long time to load. Users frequently filter by CUSTOMER_ID and ORDER_DATE. Which change is most likely to improve performance without changing functionality?

Your application uses a shared component list of values (LOV) for selecting a department. You need the LOV to show only departments that the current user is allowed to access. Which design is most appropriate?

A public-facing APEX app must allow users to reset their passwords securely without exposing whether an email address exists in the system. Which approach is most appropriate?

You are designing an enterprise APEX app where database schemas are shared across multiple applications. You need a consistent approach so that end-user privileges are enforced centrally and cannot be bypassed by direct table access from any app. What is the best architecture pattern?

You are setting up a new Oracle APEX workspace for a development team. They need to create tables, views, and PL/SQL packages in their own schema and build APEX apps on top of it. What is the recommended approach?

In an APEX page process, you use a PL/SQL block to insert a row and commit. Users report that sometimes changes are committed even when later validations fail and the page shows errors. What is the best practice to prevent partial commits during submit?

You need to add a data entry page quickly for a table that already exists in the schema. The page should include validation, DML processing, and primary key handling with minimal custom code. Which APEX feature should you use?

An application must restrict access to a set of pages so that only users assigned the role "FINANCE" can view them. The security team wants the logic to be reusable across components and easy to audit. What should you implement?

Your Interactive Report query includes a join that can produce duplicate rows. Users complain that the report shows duplicates and aggregated totals are incorrect when they download. What is the best fix?

A page has a Select List item that should display values based on another item (cascading LOV). After the parent item changes, the Select List still shows old choices until the user refreshes the page. What should you do?

You call a PL/SQL function from a region source that uses an item value (e.g., :P10_DEPTNO). The region does not reflect updated results after a Dynamic Action changes P10_DEPTNO. What is the most likely missing configuration?

Your application uses a REST Data Source to call an external API. Some calls fail intermittently with timeouts, and the help desk needs troubleshooting information without exposing sensitive payloads. What is the best approach in APEX?

You are implementing row-level security for an Interactive Report on ORDERS so users only see rows for their assigned CUSTOMER_ID. The security requirement states that bypassing APEX (for example, via direct SQL access) must also be prevented. What is the best architecture?

A multi-page wizard collects data across several steps. Users must be able to navigate back and forth without losing inputs, but data should only be written to the database after the final confirmation. Which design is most appropriate?

You need to enable users to sign in to an APEX application using an external identity provider (IdP) and ensure APEX does not store or validate user passwords. Which authentication approach best meets this requirement?

A developer adds a report region with a SQL query that references an item :P10_DEPTNO. At runtime the report always returns all rows, as if :P10_DEPTNO were NULL, even after the user selects a department. What is the most likely cause?

You want to prevent developers in a workspace from creating applications that reference database objects outside a specific schema, to reduce accidental cross-schema dependencies. Which workspace-level approach is most appropriate?

A page has a button that sets a page item value via a Dynamic Action. Immediately after, the page submits and a PL/SQL process reads the item, but it sees the old value. What is the best fix?

Your application uses an Interactive Grid to allow editing of ORDER_LINES. Users report that after changing the value of a calculated column, the total does not refresh until they save. You want totals to update immediately on the client without saving. What approach is most appropriate?

A page process calls an external REST API and stores the response in a table. When the API is slow, users experience timeouts and duplicate rows because they retry. What is the best architectural change in APEX to address both issues?

You need to allow end users to download a report as a file, but must ensure the SQL query cannot be manipulated to access unauthorized data. Which approach is most secure?

An application uses a shared component Authorization Scheme to restrict access. Some pages are still accessible if users directly enter the URL, even though menu entries are hidden. What is the correct way to enforce security consistently?

Your APEX application runs with a parsing schema that has broad privileges. You must ensure that users can only see rows belonging to their business unit across all SQL (reports, forms, LOVs), with minimal developer effort and strong enforcement. What is the best solution?

A workspace contains multiple applications that should share the same UI templates, lists, and theme customizations. You need a maintainable approach so changes can be applied consistently across apps without manually updating each one. What is the best practice in APEX?

You need to allow developers to build applications in a workspace, but you must prevent them from creating or altering database objects (tables, packages) in the underlying schema. Which workspace setup best meets this requirement?

An application has a page item P10_STATUS used in multiple regions. You want the value to be set once per page view and then referenced by multiple computations and processes without recalculating it. Which approach is most appropriate?

You have a report region based on a SQL query that uses a bind variable :P20_DEPTNO. Users report that changing P20_DEPTNO does not affect the report results until they refresh the whole page. What is the recommended fix?

You want to prevent sensitive values (for example, a salary) from being displayed in the browser while still allowing authorized users to query them. Which APEX feature best supports this requirement at the database level?

An APEX process executes this statement: UPDATE emp SET sal = sal * 1.1 WHERE empno = :P30_EMPNO;. Users report that sometimes the update affects 0 rows even though the employee exists. You discover that P30_EMPNO is a display-only item. What is the most likely cause and best fix?

You are building a page with a master-detail form. The detail region should only show rows related to the selected master record without writing custom code. Which configuration is most appropriate?

Your team needs to expose a PL/SQL procedure to a page process, but you want to prevent direct execution of other packages in the schema from APEX for least privilege. Which approach is best?

You need a navigation menu where some entries are visible only to users with an "ADMIN" role. You want this controlled centrally without changing every page. What should you use?

A page contains multiple regions that should all react consistently when the user changes a set of filter items (P5_FROM_DATE, P5_TO_DATE, P5_STATUS). Sometimes regions show mismatched results because not all filters are submitted during refresh. What is the best design to ensure consistent filtering across regions with minimal duplication?

Your application uses an external Identity Provider (IdP) via federation. After successful login, users occasionally land on the home page but are not recognized as authenticated (APEX treats them as public). There are no APEX errors. Which troubleshooting step is most relevant in APEX?

Your team wants to verify which database schema an APEX application uses to parse and run SQL at runtime. Where do you check or set this in APEX?

A developer creates a new page based on an Interactive Grid and expects edits to be saved automatically, but pressing Save does nothing and no errors appear. The region is based on a complex SQL query joining multiple tables. What is the most likely cause?

You need a page item that is derived from a SQL expression and should always reflect the latest database value each time the page is shown, without being stored in session state. Which item setting best matches this requirement?

A report region must show only rows for the logged-in user. The database table has a column OWNER_USERNAME. What is the most secure and maintainable approach in APEX?

A page has multiple regions that should refresh after a user changes a Select List item. The developer created a Dynamic Action with an action of 'Refresh' but nothing happens. What is the most likely missing configuration?

You are troubleshooting an application where a PL/SQL process runs successfully in SQL Workshop, but fails at runtime in the app with ORA-00942: table or view does not exist. The object exists in another schema. What is the most likely reason?

A developer needs to call a stored procedure after a form is submitted, but only if the user clicked the "Approve" button (not when clicking "Save" or "Cancel"). What is the recommended way to ensure the process executes only for that button?

Your application uses Friendly URLs. After deployment, users report that bookmarks to deep-linked pages no longer work and redirect to the home page. Authentication is enabled and requires login. What is the most likely cause?

An application exposes a REST Data Source to fetch customer information from an external service. Users report slow page rendering and timeouts. What is the best APEX-focused approach to improve performance and resiliency without changing the external service?

A team wants to allow business users to build ad-hoc charts and reports on a set of tables, but they must not gain access to SQL Workshop or be able to run arbitrary SQL. Which feature best fits this requirement?