1z0-770 Practice Exam Questions with Answers Oracle APEX Cloud Developer Professional Certification

In a Classic Report, an end user can perform the following actions:

• Filter values of a column in the report by using the Search Bar. This bar allows the user to enter a search string and apply it to one or more columns in the report.
• Sort the columns of the report by clicking on the column headers. This action toggles the sort order between ascending and descending for the selected column.

The other options are incorrect because:

• Create Control Breaks in the report is not an action that an end user can perform in a Classic Report. This action is only available in an Interactive Report by using the Control Break option in the Actions menu.
• Rearrange the columns in the report is not an action that an end user can perform in a Classic Report. This action is only available in an Interactive Grid by using the Reorder option in the Actions menu.

Verified References: [About Classic Reports] [Searching Classic Reports] [Sorting Classic Reports]

Page Designer is a tool that allows developers to create and edit pages in Oracle APEX using a graphical user interface. Page Designer has three main panes: Rendering, Processing, and Property Editor. You can change the layout of Page Designer under Utilities by selecting one of the following options:

• Single Pane Mode - This option displays only one pane at a time. You can switch between the Rendering, Processing, and Property Editor panes by using the buttons on the toolbar or the keyboard shortcuts.
• Two Pane Mode - This option displays two panes side by side. You can choose which panes to display by using the buttons on the toolbar or the keyboard shortcuts. You can also resize the panes by dragging the splitter bar between them. There is no Three Pane Mode or Four Pane Mode option for Page Designer layout. Verified References: [Managing Pages in Page Designer - Oracle Help Center], [Page Designer Layout Options - Oracle Help Center]

A Link Column is a special column type that you can define for an interactive report to create a link to another page, URL, or custom target. A Link Column is always displayed as the first column in the report, regardless of the order of the columns in the query. A Link Column cannot be sorted, hidden, or moved by an end user using the Actions menu or the column header. However, a developer can change the position and visibility of a Link Column by editing the report attributes in Page Designer. 

A faceted search page is a type of page that allows end users to filter data by applying one or more facets. A facet is a set of filters based on a column or expression. You can create a faceted search page by using the Create Page Wizard or by adding a faceted search region to an existing page. If you create a faceted search page based on a table, view, or SQL query, the facets are auto-discovered by analyzing the data source. The Search Results region can be displayed as a Classic Report or Cards, but not as an interactive report. You can also customize the appearance and behavior of the facets and the search results by using various attributes. Verified References: [Creating Faceted Search Pages - Oracle Help Center], [Faceted Search Attributes - Oracle Help Center]

The Developer Toolbar is a component that appears at the bottom of every page in an Oracle APEX application when running in development mode. The Developer Toolbar provides quick access to various features and tools for developing and debugging an application. One of the options in the Developer Toolbar that enables developers to customize the look and feel of the application is Customize.

• Customize: This option opens the Theme Roller tool that allows developers to modify the theme style of the application by changing colors, fonts, sizes, borders, shadows, and more. Developers can also create new theme styles or switch between existing ones using this option.

The commission yn column will restrict acceptable values to TRUE or FALSE because of the /check modifier in the column name. This modifier adds a check constraint to the column based on the values specified after it. The yn suffix indicates that the column is of type VARCHAR2(1). The other options are incorrect because they do not reflect the effect of the /check modifier or the yn suffix. Verified References: Using Quick SQLAbout Quick SQL Shorthand Syntax

To highlight certain rows in the interactive report based on a condition, you must choose a condition in Format > Highlight. This option allows you to apply a conditional formatting rule to the report, which changes the appearance of the rows that match the condition. You can specify the condition type, expression, column, operator, and value. You can also choose the highlighting style, such as background color, text color, or icon.

The other options are incorrect because:

• Provide a conditional SQL query: This option will not highlight certain rows in the interactive report based on a condition. It will filter the data in the report by applying a WHERE clause to the SQL query that defines the report source.
• Edit the rows in the report and select a color: This option will not highlight certain rows in the interactive report based on a condition. It will modify the data in the report by using inline editing or modal dialog editing. You cannot select a color for the rows in this option.
• Rows cannot be highlighted in an Interactive report: This option is false. Rows can be highlighted in an Interactive Report by using the Format > Highlight option.

Verified References: [Customizing Interactive Reports] [Highlighting Rows Based on Conditions]

The Page Designer Toolbar allows you to perform various actions related to the development of an APEX page. Two of the actions that you can perform are:

• Navigate to Shared Components: This option lets you access the shared components of your application, such as lists, breadcrumbs, navigation menus, and so on. You can edit, create, or delete shared components from this option. To access this option, click the icon that resembles a puzzle piece on the Page Designer Toolbar.
• Create a new page: This option lets you create a new page for your application using the Create Page Wizard. You can choose from different page types, such as blank page, form, report, chart, calendar, and so on. To access this option, click the icon that resembles a plus sign (+) on the Page Designer Toolbar.

The valid Geometry Column Data Types for maps region are Latitude/Longitude, GeoJSON, and SDO_GEOMETRY. These types represent different ways of storing spatial data in Oracle Database. Latitude/Longitude uses two numeric columns for longitude and latitude values. GeoJSON uses a VARCHAR2 or CLOB column that contains geometry information in GeoJSON format. SDO_GEOMETRY uses an object type that stores spatial data using Oracle Spatial features. JSON_OBJECT is not a valid Geometry Column Data Type for maps region. Verified References: About Supported MapsEditing Maps

The “Create an Application From a File” wizard is a tool that allows developers to create an application based on an existing spreadsheet file or sample data set. Some of the statements that are true about loading data from this wizard are:

• A sample data set from the sample list can be uploaded. You can use the Sample Data Sets option to select a predefined data set from a list of available samples, such as Employees, Products, Projects, etc.
• CSV, XLSX, XML, TXT, or JSON files can be uploaded. You can use the Upload a File option to upload a spreadsheet file in one of these formats and create an application based on its data. You cannot upload seed data from a SQL script, paste and load XML and JSON data, or upload data from remote web services using this wizard. You can use other features in App Builder or SQL Workshop to perform these actions, such as SQL Scripts, RESTful Services, etc. VerifiedReferences: [Creating an Application From a File - Oracle Help Center], [Creating an Application Based on Sample Data Sets - Oracle Help Center]

All of the options listed are different kinds of page components that you can create in APEX. A page component is an area of a page that serves as a container for content. Each page component contains a different type of content, such as HTML, a report, a form, a chart, a list, a breadcrumb, PL/SQL, a tree, a URL, or a calendar. You can create page components by using the Create Page Wizard, dragging and dropping from the Gallery pane in Page Designer, or using the context-sensitive menu in the Rendering tree in Page Designer.

You can create two types of card layout in APEX: Float and Grid. Float layout displays cards in a single row that wraps to the next row when the available space is filled. Grid layout displays cards in a fixed number of columns that can be responsive to the screen size1. Vertical and Horizontal are not valid card layout types in APEX.

The Create Application Wizard is a tool that allows developers to create a new application by following a series of steps. Some of the actions that you can perform using the Create Application Wizard are:

• Reorder application pages. You can use the Reorder Pages option in the Pages step to change the order of the pages in your application by dragging and dropping them.
• Add or delete application pages. You can use the Add Page or Delete Page options in the Pages step to add new pages or delete existing pages from your application. You can also use the Create Page Wizard to create additional pages after creating the application. You cannot upload JavaScript or CSS files required for an application or change the application authorization using the Create Application Wizard. You can use other features in App Builder to perform these actions, such as Shared Components > User Interface > Files and Shared Components > Security > Authentication Schemes. Verified References: [Creating an Application Using the Create Application Wizard - Oracle Help Center], [Create Application Wizard - Oracle APEX]

Oracle SQL Developer and SQL Workshop are two primary ways to move database objects and data from one environment to another, for a single application. Oracle SQL Developer is a graphical tool that allows you to export and import data schemas using Data Pump or SQL scripts. SQL Workshop is a component of Oracle APEX that enables you to perform tasks such as exporting and importing data, running SQL commands, and generating DDL scripts. Both tools can help you migrate your database objects and data to a different instance or workspace. References: Using SQL Developer to Migrate Your Oracle Database and Using Data Workshop to Manage Data

A map is a type of component that enables you to view and manage data based on geographic locations. A map consists of a background map and spatial geometry objects that are sourced from data in a table or from a REST Data Source. Spatial geometry objects are shapes that represent real-world features on a map, such as points, lines, polygons, or heat maps. Two of the statements that are true about maps in Oracle APEX are:

• Background maps do not require any API keys. This statement is true because Oracle APEX provides several background map options that do not require any API keys or registration to use. These options include OpenStreetMap, Stamen Maps, CartoDB Maps, and Esri Maps.
• Maps support REST Enabled SQL. This statement is true because Oracle APEX allows you to use REST Enabled SQL as a data source for your map regions. REST Enabled SQL is a feature of Oracle REST Data Services (ORDS) that enables you to execute SQL statements and PL/SQL blocks over HTTPS using REST endpoints.

The feature pages that can be created using the Create Page Wizard are About Page, Access Control, Activity Reporting, Configuration Options, Email Reporting, Feedback, Login Page, and Theme Style Selection. These pages provide application-level functionality that can be added to an existing application. Search Page and Unified Task List are not feature pages that can be created using the Create Page Wizard. Verified References: Managing Feature PagesFeature Page Types

Shared components are common elements that can be displayed or applied on any page within an application. Once you create a shared component, you can add them to any page within your APEX application. However, shared components are specific to each application and workspace, so you cannot add them to any page in any workspace4. Breadcrumbs, lists, and navigation bar entries are examples of shared components that can be used for navigation purposes4.

A list of values (LOV) is a definition that provides a set of display values and return values for a page item or a report column. A LOV can be created at the application level as a shared component or at the page level as a local component. There are three types of LOVs that you can create on a page:

• Static LOV: A static LOV is based on a fixed list of display values and return values that you specify when you create the LOV. A static LOV does not change unless you edit it manually.
• Cascading LOV: A cascading LOV is based on another parent LOV that determines the values of the child LOV. A cascading LOV changes dynamically depending on the selection made in the parent LOV.
• Dynamic LOV: A dynamic LOV is based on a SQL query that returns display values and return values from the database. A dynamic LOV changes dynamically depending on the data in the database.

 A modal dialog is a type of page mode that displays an overlay window within the viewport when a button is pressed. A modal dialog is a stand-alone page that does not interact with the base page where it was launched. A modal dialog blocks access to the base page until it is closed by the user. A modal dialog can be used for various purposes, such as displaying additional information, confirming an action, or collecting user input.

To create a REST Enabled SQL Reference, you need to meet the following requirements:

• Install Oracle REST Data Services (ORDS) 19.x or later. ORDS is a Java application that enables developers to create, publish, and manage RESTful web services for Oracle databases1.
• Activate REST Enabled SQL for the target schema on the remote database. REST Enabled SQL is a feature of ORDS that allows you to execute any SQL or PL/SQL through a REST endpoint. You need to enable this feature for the schema that contains the data you want to access2.
• Configure and enable the REST Enabled SQL service feature. This is a workspace-level setting that allows you to use REST Enabled SQL references in your APEX applications. You need to specify a path prefix and a secret for the REST Enabled SQL service3.

You do not need to set up any remote database, as long as it meets the ORDS and REST Enabled SQL requirements. You can use any Oracle database or MySQL database as a remote data source2.

Theme Styles in Oracle APEX are CSS style sheets that are added to the base CSS of a theme to alter the look and feel of an application. A theme can have multiple theme styles with one style set as current. When the Is Public attribute is enabled for a theme style, end users can choose the theme style from the runtime environment by using the Theme Style Switcher component. This allows end users to customize the appearance of the application according to their preferences. Verified References: Using Themes and Theme Styles - Oracle Help Center, Theme Styles - Oracle APEX

Smart Filters is a component that allows end users to filter data by typing keywords in a single search field. Some of the statements that are true about creating and customizing Smart Filters pages are:

• If you create a Smart Filters page based on a table, the filters are auto discovered using the Data Dictionary Cache. You can also manually add or remove filters as needed.
• The suggestion chip count is only displayed for filters that support counts, such as LOV-based filter types. For other filter types, such as Input or Range, the count is not displayed. The search results report cannot be displayed as an interactive report or an interactive grid. The supported report types are Classic Report, Cards, Map, or Calendar. Verified References: [Managing Smart Filters - Oracle Help Center], [Creating Smart Filters Using the Create Page Wizard - Oracle Help Center]

You can create a report in any of these three methods:

• Create a report as a new page in an application by using the Create Page Wizard. This wizard guides you through the steps of selecting a page type, defining attributes, selecting a source (such as SQL query or table), and adding items or buttons.
• Create a report when you create a new database application by using the Create Application Wizard. This wizard allows you to generate one or more reports based on existing tables or views in your schema. You can also create a report and form on the same table or view.
• Create a report region on a page in an application by using the Page Designer. This tool allows you to drag and drop a region type (such as Classic Report, Interactive Report, or Interactive Grid) onto the page and define its attributes and source.

The other option is incorrect because:

• You cannot create a report from Object Browser. Object Browser is a tool that allows you to view and manage the database objects in your schema, such as tables, views, indexes, etc. You can only run SQL queries or scripts from this tool, not create reports.

Verified References: [Creating Database Applications] [Creating Pages] [Creating Regions] [Using Object Browser]

There are three different ways in which you can add a checkbox to a page in APEX:

• Drag and drop the checkbox item into the Layout pane: In Page Designer, you can drag and drop items from the Gallery pane into the Layout pane to create them on your page. To create a checkbox item, expand the Items node in the Gallery pane and drag and drop Checkbox into the Layout pane.
• Right click Body in the Rendering Tree and add a New Page Item as Checkbox Type: In Page Designer, you can right click any node in the Rendering tree andselect Create to create a new component under that node. To create a checkbox item under the Body node, right click Body and select Create > New Page Item > Checkbox.
• Use the context sensitive menu in the Gallery pane: In Page Designer, you can use the context sensitive menu in the Gallery pane to create items on your page. To create a checkbox item using this method, expand the Items node in the Gallery pane and right click Checkbox. Then select Create Checkbox.

Universal Theme is a responsive, versatile, and customizable user interface for your APEX apps. It is designed uniquely for Oracle APEX to make it easy for developers to build beautiful, modern applications, at any scale, for any purpose, that work on any device. All of the statements given are true about Universal Theme:

• Features a responsive design and enables developers to create web applications without extensive knowledge of HTML, CSS, or JavaScript. Universal Theme adapts to different screen sizes and devices using CSS media queries and grid layout. It also provides a rich set of UI components, template options, and theme styles that can be used declaratively without writing custom code.
• Universal theme is the default theme that is shipped with Oracle APEX. Universal Theme is the default theme for new applications created in APEX 5.0 or later. It is also the recommended theme for upgrading existing applications to the latest version of APEX.
• Uses a 12-column grid layout system for arranging components on a page. Ships with a variety of pre-built theme styles. Universal Theme uses a 12-column grid layout system based on Flexbox to arrange components on a page. It also ships with a variety of pre-built theme styles that can be applied to change the look and feel of the application.

The table creation script produced by Quick SQL is:

create table emp_salary ( id number generated by default on null as identity constraint emp_salary_id_pk primary key, name varchar2 (255 char) not null, salary number, commission_yn varchar2 (1 char) check (commission_yn in (‘Y’,‘N’)) default ‘N’ not null );

The commission_yn column will default to ‘N’ because of the default clause in the column definition. It will also restrict acceptable values to ‘Y’ or ‘N’ because of the check constraint. The other options are incorrect because they do not match the output of Quick SQL. Verified References: Using Quick SQLAbout Quick SQL Shorthand Syntax

The Approvals Component is Oracle APEX’s new offering as part of the 22.1 Release. It allows seamless management of approvals across APEX Applications. Approvals are commonly used in business situations involving Expense Reimbursements, Leave Requests, Purchase Requisitions, On-boarding of Employees to name a few. The Approvals Component provides the following building blocks for the approvals functionality:

• Task Definition: A shared component for configuring task parameters, participants, and actions. A task definition defines the template for creating tasks based on a specific type of approval request, such as Leave Approval or Purchase Requisition. A task definition specifies the data source, display attributes, potential owners, business administrators, and available actions for the tasks.
• Task Details Page: A page that shows task details, which can include metadata, history, comments, and actions. A task details page allows users to view and take action on a specific task, such as approve, reject, reassign, or escalate. A task details page can be created using the Create Page Wizard or the Quick SQL tool in APEX.
• Unified Task List: A page type in the Create Page Wizard, used to create a summary of a user’s tasks that functions like an inbox. A unified task list allows users to see and manage all their tasks in one place. Users can filter, sort, search, claim, release, or open tasks from the unified task list.

The REST-enabled SQL feature in Oracle APEX allows developers to execute SQL statements and PL/SQL blocks on a remote Oracle Database by using REST services. The prerequisites to use this feature are:

• On the remote Oracle Database, install ORDS 19.x or later.
• REST enable the schema in the remote Oracle Database using ORDS.ENABLE_SCHEMA.
• Create a REST Data Source with REST Enabled SQL as the REST Data Source Type in Oracle APEX.
• Create an Authorization Scheme based on the REST Data Source in Oracle APEX. You do not need to create a database link to the remote Oracle Database or install Oracle APEX in the remote Oracle Database to use this feature. Verified References: [Using REST Enabled SQL - Oracle Help Center], [REST Enabled SQL Service - Oracle Help Center]

Data Workshop is a feature in Oracle APEX that enables you to load and unload data to and from the database. You can use Data Workshop to copy data between Oracle databases or between an Oracle database and external files. Data copying is accomplished by exporting and importing data, and by unloading and loading data. While migrating apps, once the database objects are created in the target environment, you can load the data using Data Workshop by following these steps:

• Access Data Workshop by clicking Utilities and then Data Workshop in SQL Workshop.
• Click Load Data.
• Select a data source type, such as Text File (CSV), XML File (XML), Copy & Paste (Spreadsheet), or Object Store Reference (Autonomous Database only).
• Specify a file name or location for your data source.
• Select a table name for your data destination.
• Map your data columns to your table columns.
• Review your data load settings and click Load Data.

To migrate an APEX app between environments, such as from development to production, you need to consider three components that make up an APEX app:

• Database objects: These are the tables, views, procedures, functions, packages, triggers, sequences, synonyms, and other schema objects that store or manipulate the data used by the app. You need to move these objects from the source schema to the target schema using tools such as SQL Developer, Data Pump Export/Import, or Data Workshop.
• Images: These are the static files, such as images, CSS files, JavaScript files, or PDF files, that are used by the app for display or download purposes. You need to move these files from the source web server to the target web server using tools such as FTP, SCP, or File Explorer.
• Application definition and all associated files: These are the metadata files that define the app components, such as pages, regions, items, buttons, processes, validations, computations, dynamic actions, shared components, and so on. You also need to include any supporting object definitions or data scripts that are used to create or populate database objects for the app. You need to move these files from the source APEX instance to the target APEX instance using tools such as App Builder Export/Import or One-click Remote Application Deployment.

Task definitions that exist on the application level in the Shared Components section are made up of all of the following: Participants, Task Settings, Parameters, and Actions. Task definitions are used to define approval workflows for data changes in interactive grids or forms5. Participants are the users or groups who can approve or reject tasks. Task Settings are the properties that control how tasks are created, assigned, and completed. Parameters are the variables that store information about tasks or data changes. Actions are the PL/SQL code blocks that execute when tasks are created, updated, or completed5.

REST Data Source Synchronization is a feature that enables developers to automatically sync the contents of a local table with the data from an external REST service. To execute REST source synchronizations on schedule, the CREATE JOB privilege must be granted to the application’s parsing schema, which allows APEX to create a DBMS_SCHEDULER job for each scheduled synchronization task. If the local table is not in sync with the Data Profile, which defines the columns and data types of the REST service response, Data Synchronization continues to work for columns present in both the table and the Data Profile (other columns are ignored). However, APEX generates SQL DDL statements to sync table columns back to the Data Profile, which can be added to the application as supporting objects. Verified References: Managing Data Synchronization - Oracle Help Center, Synchronize Data from REST Services to Local Table - Oracle Blogs

A calendar is a type of component that enables users to view and manage data based on dates. A calendar can display data in different views, such as monthly, weekly, daily, or list. Users can also interact with the calendar by creating, editing, or deleting events, or by using drag and drop functionality. Three of the features of a calendar in Oracle APEX are:

• Next - Navigates to the next month. This feature allows users to move forward in time and see the events for the following month.
• Previous - Navigates to the previous month. This feature allows users to move backward in time and see the events for the previous month.
• Month, Week, Day - Displays a monthly, weekly and daily view. These features allow users to switch between different views of the calendar and see the events for a specific month, week, or day.

You can access the Shared Components page from two places in App Builder: the Page Designer and the Application home page. In Page Designer, you can click on the Shared Components icon at the top of the page to open the Shared Components page in a new tab5. In the Application home page, you can click on the Shared Components link in the center of the page to navigate to the Shared Components page6. Gallery, SQL Workshop, and other pages do not have direct links to the Shared Components page.

A workspace is a logical work area that enables multiple users to work within the same Oracle APEX installation while keeping their objects, data, and applications private. Creating and managing an APEX workspace involves the following statements:

• During workspace creation, you can associate the workspace with an existing database schema or create a new schema for the workspace. A schema is a collection of database objects such as tables, views, indexes, etc. that belong to a user.
• A workspace enables multiple users to work within the same Oracle APEX installation. Each user can have a different role and privilege in the workspace, such as workspace administrator, developer, or end user.
• A workspace can be associated with one or more schemas. You can add or remove schemas from a workspace after it is created.
• You can create as many workspaces as you need in an APEX Service (APEX Application Development) instance. There is no limit on the number of workspaces per instance.

Verified References: Managing WorkspacesAbout Workspaces