Oracle 1Z0-770 Exam Questions

When a table or a SQL query returns many rows, an interactive grid is best displayed to the user with pagination.Pagination enables users to navigate through large data sets by displaying a subset of data at a time3.The two types of pagination available for interactive grids are Page and Scroll3. Page pagination displays a fixed number of rows per page and provides controls to navigate between pages.Scroll pagination displays rows as the user scrolls down the grid and fetches more data as needed

When you click a Customer Name in the Customers report, the Customer Details form dialog page is displayed. This involves two events: page rendering and page processing. Page rendering is the event that occurs when APEX generates and sends the page to the browser. Page processing is the event that occurs when APEX receives and processes the page from the browser. In this scenario, both events happen because the Customer Details form dialog page is a modal dialog that uses AJAX to communicate with the server without reloading the entire page. Page compilation is not an event, but an action that occurs when APEX compiles an application or a page before running it.

Dynamic actions are a declarative way to define client-side behavior without writing JavaScript code. You can create dynamic actions on an item, button, or region of a page by specifying the event, condition, affected elements, action, and other properties. Some of the statements that are true about creating and using dynamic actions are:

You can execute JavaScript code by creating a dynamic action. One of the supported action types is Execute JavaScript Code, which allows you to enter custom JavaScript code to run when the dynamic action fires.

If a client-side condition is defined, the true action will fire when the condition is met, and the false action will fire when it is not. You can define a client-side condition for a dynamic action to control when it should fire based on an expression or value. You can also define different actions for the true and false branches of the condition. You can add additional true actions to a dynamic action by clicking the Add True Action button in the Property Editor. If no client-side condition is defined, true actions will fire when the event occurs. Verified References: [Oracle Application Express 18: Creating Dynamic Actions], [Dynamic Action Enhancements in APEX 21.1 - Oracle Blogs]

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]

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. Verified References: [Creating an Application From a File - Oracle Help Center], [Creating an Application Based on Sample Data Sets - Oracle Help Center]