1z0-770 Questions and Answers

Custom Apps are specific to your workspace and are only available if your instance administrator has enabled them. You can install Sample Apps and Starter Apps directly from the Gallery or download them from GitHub. Sample Apps and Starter Apps are available with every Oracle APEX workspace. References: Using the App Gallery and Configuring the Application Gallery

An authorization scheme is a rule that determines if a user is authorized to access a specific component or feature of an application, such as a page, region, button, item, etc. An authorization scheme can be evaluated at different points in time depending on its evaluation point attribute. The valid evaluation points for authorization schemes are:

• Never: The authorization scheme is never evaluated and always returns false.
• Once per session: The authorization scheme is evaluated only once per user session and caches the result for subsequent requests.
• Once per page view: The authorization scheme is evaluated once per page view and caches the result for subsequent requests within the same page view.
• On each new page view or partial page refresh: The authorization scheme is evaluated on each new page view or partial page refresh (for example, when using dynamic actions) and caches the result until the next page view or partial page refresh.
• On each request (not cached): The authorization scheme is evaluated on each request and does not cache the result. Once per user and Once per page load are not valid evaluation points for authorization schemes. Verified References: [Creating Authorization Schemes - Oracle Help Center], [Authorization Scheme Attributes - 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.

The Column Heading menu of an Interactive Report provides various options to customize the report based on the selected column. The options include:

• Control Break: This option allows you to create a control break on the column, which groups the rows by the column values and inserts a header and a footer for each group. You can also apply aggregate functions, such as sum, count, or average, to the footer of each group.
• Hide: This option allows you to hide the column from the report, which reduces the clutter and improves the readability of the report. You can also show the hidden columns by using the Columns option in the Actions menu.

The other options are incorrect because:

• Group By: This option is not provided in the Column Heading menu of an Interactive Report. It is provided in the Actions menu of an Interactive Report. It allows you to group the rows by one or more columns and display the result in a chart or a pivot table.
• Delete: This option is not provided in the Column Heading menu of an Interactive Report. It is provided in the Data option in the Actions menu of an Interactive Report. It allows you to delete one or more rows from the report and the underlying table.

Verified References: [Customizing Interactive Reports] [Column Heading Menu]

Custom Apps are specific to your workspace and are only available if your instance administrator has enabled them. You can install Sample Apps and Starter Apps directly from the Gallery or download them from GitHub. Sample Apps and Starter Apps are available with every Oracle APEX workspace. References: Using the App Gallery and Configuring the Application Gallery

The Access Control feature pages are a set of pages that allow developers to implement role-based access control for an application. The Access Control feature pages consist of four pages: Administration, Users, Roles, and Role Assignments. The Administration page allows administrators to perform various tasks related to managing users and roles, such as:

• Add Users: Administrators can add new users to the application by entering their username, email address, password, status, etc.
• Assign roles to users: Administrators can assign one or more roles to users by selecting them from a list of available roles.
• Edit Users: Administrators can edit user details such as username, email address, password, status, etc.
• Delete Users: Administrators can delete users from the application by selecting them from a list of existing users.
• Lock/Unlock Users: Administrators can lock or unlock users by changing their status from active to locked or vice versa. You cannot create authorization schemes or create new application roles using the Administration page. You can create authorization schemes by using Shared Components > Security > Authorization Schemes. You can create new application roles by using Shared Components > Security > Access Control > Roles. Verified References: [Using Access Control - Oracle Help Center], [Creating an Administration Page - Oracle Help Center]

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]

An Interactive Report and an Interactive Grid are two types of regions that allow end users to customize how and what data is displayed. They have some common capabilities such as:

• End users can add, modify, and refresh data directly on the report by using the Edit option. This option enables inline editing or modal dialog editing depending on the region settings.
• End users can customize how and what data is displayed by using the Actions menu. This menu provides various options such as Filter, Highlight, Aggregate, Chart, Group By, Pivot, etc.

The other options are incorrect because:

• End users cannot rearrange the report interactively using the mouse in an Interactive Report. This capability is only available in an Interactive Grid by using the Reorder option in the Actions menu.
• End users cannot save the report in an Interactive Grid. This capability is only available in an Interactive Report by using the Save Report option in the Actions menu.

Verified References: [About Interactive Reports] [About Interactive Grids]

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]

Faceted Search is a feature 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. Faceted Search supports the ability to filter columns storing multiple values as one string, such as comma-separated values or JSON arrays, by using the Split Values attribute. Facets map to specific database columns or expressions that are defined in the Data Source attribute of the faceted search region. The other statements are false because Faceted Search supports displaying multiple charts in the same region by using the Chart View attribute, and a facet’s chart can be seen either in a nonmodal dialog or inline by using the Chart Display Mode attribute. Verified References: [Creating Faceted Search Pages - Oracle Help Center], [Facet Attributes - Oracle APEX]

App Builder is the main interface of Oracle APEX that allows developers to create and manage web applications. App Builder provides various features and tools to design, develop, test, debug, deploy, and maintain applications. Some of the tasks that you can perform using App Builder are importing previously exported apps, creating new apps from scratch or from predefined templates or blueprints, editing app properties and attributes, adding pages and regions, creating shared components, running and debugging apps, exporting apps to files or workspaces, etc. You cannot create join queries using drag and drop or generate DDL statements from the Oracle data dictionary using App Builder. Verified References: [Using App Builder - Oracle Help Center], [App Builder Concepts - Oracle Help Center]

In an Employee form, the ‘Commission’ and ‘Hire Date’ fields are enabled only if the Job is ‘Salesman’. This can be achieved by using Dynamic Actions in APEX. Dynamic Actions are declarative components that define client-side behavior without writing JavaScript code. You can create Dynamic Actions on items, buttons, or regions of a page by specifying an event, a condition, an action, and other properties. In this scenario, you can create a Dynamic Action on Job item with Change as event, Execute JavaScript Code as action, and use jQuery to enable or disable Commission and Hire Date fields based on Job value. Processing, Conditional SQL, and PL/SQL procedure are not features of APEX that can achieve this requirement without writing JavaScript code.

 A faceted search is a type of component that enables users to filter information easily and intuitively by selecting the options in each facet. A faceted search consists of a faceted search region and a search results region. The faceted search region displays on the left and upper part of the screen and shows possible values and occurrence counts for each facet. The search results region displays on the right side of the screen and shows the data that matches the selected facet values. The search results region can display as either a classic report or a cards report. Three of the statements that are true about faceted search are:

• After the end user changes a facet, the results, dependent facets, and occurrence counts refresh immediately. This feature provides instant feedback to the user and allows them to refine their search criteria without reloading the page.
• The right side of the page features a Search Results region, which can display as a classic report or a cards report. A classic report displays data in a tabular format with columns and rows. A cards report displays data in a grid of cards with images and text.
• The facets are displayed on the left and upper part of the screen. This layout provides a clear separation between the facets and the results and allows users to see and access all the facets without scrolling.

A form is a type of component that is part of an HTML form and can accept user input or display output. There are many types of forms that can be created in APEX, such as forms on tables, forms on procedures, forms on web sources, and so on. Each type of form has different properties and attributes that affect its appearance and functionality. Three of the ways in which you can create a form in APEX are:

• Using the Create Page wizard: This method allows you to create a new page with a form component using a guided wizard. You can choose from different types of forms, such as report with form, editable interactive grid, single page master detail, two page master detail, form on table, form on procedure, and so on. You can also specify various options for your form, such as data source, display style, validations, processes, and branches.
• Create a Form region in Page Designer: This method allows you to create a complex form region that includes multiple form items and processes on an existing page. You can use the Create Form Region wizard in Page Designer to create a form region based on a table, view, procedure, web source module, or SQL query. You can also customize your form region by adding or modifying items, buttons, validations, computations, processes, and dynamic actions.
• Using the Create Application Wizard: This method allows you to create a new application that contains one or more forms using a guided wizard. You can choose from different types of applications, such as database application, web source application, blueprint application, or from scratch application. You can also specify various options for your application and forms, such as name, icon, theme style, features, data source, navigation menu entry, and so on.

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. 

App Builder is the main interface of Oracle APEX that allows developers to create and manage web applications. App Builder provides various features and tools to design, develop, test, debug, deploy, and maintain applications. Some of the tasks that you can perform using App Builder are importing previously exported apps, creating new apps from scratch or from predefined templates or blueprints, editing app properties and attributes, adding pages and regions, creating shared components, running and debugging apps, exporting apps to files or workspaces, etc. You cannot create join queries using drag and drop or generate DDL statements from the Oracle data dictionary using App Builder. Verified References: [Using App Builder - Oracle Help Center], [App Builder Concepts - Oracle Help Center]

The friendly URL syntax https://example.com:5500/ords/r/mycompany/hr-app/updateemployees?session=13766599855150 has the following components:

• session=13766599855150 is the session ID. A new ID is generated for each session. This parameter identifies which session is associated with the request.
• hr-app is the application alias. This parameter identifies which application is being requested. An application alias is a user-friendly name that can be used instead of an application ID.
• mycompany is the path-prefix which is by default the workspace name. This parameter identifies which workspace is being requested. A path-prefix is a URL segment that can be used instead of a workspace ID.
• updateemployees is the page alias. This parameter identifies which page is being requested. A page alias is a user-friendly name that can be used instead of a page number.

The other option is incorrect because:

• update-employees is not the PL/SQL procedure to update the employee details. It is the page alias that identifies which page is being requested.

Verified References: [About Friendly URLs] [Understanding URL Syntax]

Session state management is a feature that enables developers to store and retrieve values for a user as the user navigates between different application pages. A session is a logical construct that establishes persistence (or stateful behavior) across page views. Each session is assigned a unique identifier (or session ID). The statement that is true about session state management in Oracle APEX is:

• APEX Sessions are logically and physically distinct from Oracle database sessions used to service page requests. APEX Sessions are stored in memory within an Application Express engine process while Oracle database sessions are stored in memory within an Oracle database process. The other statements are false because:
• A user can run multiple instances of an application simultaneously in different browser programs by using different session IDs.
• Multiple number of sessions can exist in the database at the same time for different users or applications. Verified References: [Understanding Session State Management - Oracle Help Center], [What Is a Session? - Oracle Help Center]

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

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]

 In Oracle APEX, you can choose from different authentication methods to establish a user’s identity and control access to your application. Authentication may require a user to provide some type of credentials, such as a user name and password, or could involve the use of digital certificates or a secure key. Three of the authentication methods that you can choose in Oracle APEX are:

• Custom Authentication Scheme: This method allows you to create your own authentication logic using PL/SQL code or an external web service. You can also customize the login page and session management for your application.
• No Authentication (using DAD): This method adopts the current database user as the authenticated user. This approach can be used in combination with a mod_plsql Database Access Descriptor (DAD) configuration that uses basic authentication to set the database session user.
• Built-in Authentication Scheme: This method allows you to use one of the preconfigured authentication schemes that ship with Oracle APEX, such as Open Door Credentials, LDAP Directory, Social Sign-In, and so on.

A Faceted Search and a Smart Filter are two types of pages that behave similarly in functionality. They both allow users to filter data based on multiple criteria and see the results in real time. They differ in the following aspects:

• A Faceted Search uses facets to filter data. A facet is a set of filters based on a column or expression. A facet can be displayed as a list, a range slider, a star rating, or a chart.
• A Smart Filter uses conditions to filter data. A condition is a logical expression that evaluates to true or false. A condition can be based on a column, an item, or a function.

The other options are incorrect because:

• A Map is a type of region that displays spatial data on an interactive map. It allows users to zoom, pan, and select features on the map.
• A Cards is a type of region that displays data in a grid of cards. Each card represents one row of data and can contain text, images, icons, or buttons.

Verified References: [About Faceted Search] [About Smart Filter] [About Maps] [About Cards]

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

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.

Universal Theme has many features that make it an ideal user interface for Oracle APEX applications. Three of the key features of Universal Theme are:

• Versatile UI Components: Universal Theme provides a rich set of UI components that can be used to create interactive and engaging applications. Some of the UI components include cards, lists, charts, calendars, maps, timelines, accordions, tabs, modals, alerts, and more.
• Responsive Design: Universal Theme adapts to different screen sizes and devices using CSS media queries and grid layout. It ensures that the applications look good and work well on any device, from desktops to tablets to smartphones.
• Easy Customization: Universal Theme allows developers to customize the appearance and behavior of their applications using template options and theme styles. Template options enable developers to apply different styles to components on a page without writing custom code. Theme styles enable developers to change the overall look and feel of the application by choosing from a variety of pre-built styles or creating their own.

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.

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.

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.

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

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.

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

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.

APP_USER is a built-in substitution string in Oracle APEX that stores the user name of the current user session. The APEX engine uses APP_USER as one component of a key for tracking each user’s session state. As a user navigates from page to page, the APEX engine sets the value of APP_USER to identify the user. The APEX engine also uses APP_USER to perform security checks and conditional processing. You can reference APP_USER using different syntax depending on the context, such as SQL, PL/SQL, or static text.

When you use the Create Page Wizard to create a faceted search page on any table or SQL query, such as EMP table, APEX generates a classic report region as default report type for this page. A classic report region displays data from a SQL query or PL/SQL function returning a SQL query in tabular format. A faceted search page also contains a region of Faceted Search type, which holds one or more facets that allow end users to filter data by applying one or more facets. Verified References: Creating Faceted Search Pages - Oracle Help Center, Creating Classic Reports - Oracle Help Center

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.

You can create a chart in an interactive grid by selecting Chart in the Actions menu. You can only create one chart at a time in an interactive grid. To create a second chart, you have to reconfigure or delete the existing chart1. To remove a chart, you can click the Remove Chart icon (X) adjacent to the chart filter12. Once a chart is created, you can switch the view between Grid and Chart by clicking the toggle that appears at the top of the interactive grid