Trending October 2023 # Top 10 Oracle Forms Interview Questions And Answer {Updated For 2023} # Suggested November 2023 # Top 11 Popular |

Trending October 2023 # Top 10 Oracle Forms Interview Questions And Answer {Updated For 2023} # Suggested November 2023 # Top 11 Popular

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Introduction to Oracle Forms Interview Questions and Answers

Now, if you are looking for a job which is related to Oracle Forms then you need to prepare for the 2023 Oracle Forms Interview Questions. It is true that every interview is different as per the different job profiles. Here, we have prepared the important Oracle Forms Interview Questions and Answers which will help you get success in your interview.

In this 2023 Oracle Forms Interview Questions article, we shall present 10 most important and frequently asked Oracle Forms interview questions. These questions are divided into two parts are as follows:

Part 1 – Oracle Forms Interview Questions (Basic)

This first part covers basic Interview Questions and Answers

Q1. What are OPEN_FORM, CALL_FORM, NEW_FORM? Explain the difference between them?

There are three different forms in Oracle. They are as below:

CALL_FORM: This form is used to call other form but here the parent remains active. When the form that is being called completes its operation it releases a lock that is applied and the control goes back to the calling function. When you call a form Oracle form issues a save point for the form that is called. When CLEAR_FORM is called then it rollbacks to uncommitted changes to this save point.

OPEN_FORM: When a form is called a save point is issued for the called form. When using this form, if CLEAR_FORM function causes a rollback then the called function becomes the current one. Once this is done Oracle forms rolls back to the uncommitted changes to the last save point.

NEW_FORM: This form exits the current form and enters the form that is indicated. The form which is calling is terminated as this is the parent form. Oracle forms tend to keep all higher call active and treat them as a call to a new form when a form is being called by a higher form. These forms release memory that the terminated form was using. Also if parent form was the form which was called then the new form also has the same options as the parent form.

Q2. Explain the difference between Window, Canvas, and ViewPort

A window is supposed to contain all visual objects that form an application. This window is supposed to perform various functionalities like scrolling, moving and resizing. A single form can include many windows. Every window that is created must have one content canvas. All new form modules have a predefined window which is called Window1 and is a modeless window.

Canvas: Canvas acts to be surface inside a window on which visual objects can be placed. A canvas is assigned to a particular window. Each item in a form should refer to not more than one canvas.

Viewport: Port is a visual portion of the canvas.

Q3. Explain the different levels at which Oracle form services interact.

Oracle form service is a three-tier application which interacts at the below three levels:

Client level

Server level

Database level

HTTP requests are sent by a client to the system when the application works at the client level. This request will be received by forms listener servlet at a server and it will initiate the forms runtime process. After this process, the request is sent to the database so that information is retrieved and this information is sent back to the client. This is the complete workflow of user interaction through Oracle forms services which help in easy interaction.

Q4. What is the sequence in which triggers are fired by Oracle Forms?




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Q5. Name the different triggers which are associated with Oracle forms having a master-detail relationship.

Below triggers are created when the master-detail block is created:




Part 2 – Oracle Forms Interview Questions (Advanced) Q6. What do you understand by record group in Oracle Forms?

A framework that has rows and columns within Oracle forms which are similar to a table in a database is known as a record group.

Record groups have the below types:

Query Record group

Non-query record group

Static Record group

A query record group is associated with a Select statement can it is created or updated during the design phase or execution phase. When it comes to non-query record group it is not associated with any query and therefore it can be created or updated only when this group is in the execution phase. The static record group, unlike a non-query record group, is not associated with any query and it can be created or updated only during the design phase.

Q7. Explain the difference between ON ERROR and ON MESSAGE trigger.

ON MESSAGE Trigger: This trigger is fired when Oracle forms are caused to display ON MESSAGE trigger. It is used to replace default messages with a customized message. The built-in functions are: MESSAGE_CODE, MESSAGE_TEXT, MESSAGE_TYPE (FRM, ORA, NULL)

Q8. What are the benefits of multiple form applications?

Easier to debug small form.

Flexibility between forms.

Easy to maintain.

Data can be exchanged between forms.

Q9. Explain the two phases of block coordination?

This is the most asked Oracle Forms Interview Questions in an interview. The two phases of block co-ordination are:

Clear Phase: During this phase, the Oracle forms navigate internally to detail block and fetches the records.

Population Phase: During this phase, Oracle forms has a select statement to repopulate the detail records associated with the new master record that is created.

Q10. What are the editors? What are the different types of editors?

Their types are:

Default Editor

System Editor

User Named Editor

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