Oracle Forms Interview Questions & Answers - Oracle Forms FAQ- Part-2

1. What are  OPEN_FORM, CALL_FORM, NEW_FORM? What are the differences between them?
 
CALL_FORM : It calls the other form. but parent remains active, when called form completes the operation , it releases lock and control goes back to the calling form.
When you call a form, Oracle Forms issues a savepoint for the called form. If the CLEAR_FORM function causes a rollback when the called form is current, Oracle Forms rolls back uncommitted changes to this savepoint.

OPEN_FORM : When you call a form, Oracle Forms issues a savepoint for the called form. If the CLEAR_FORM function causes a rollback when the called form is current, Oracle Forms rolls back uncommitted changes to this savepoint.

NEW_FORM : Exits the current form and enters the indicated form. The calling form is terminated as the parent form. If the calling form had been called by a higher form, Oracle Forms keeps the higher call active and treats it as a call to the new form. Oracle Forms releases memory (such as database cursors) that the terminated form was using.
Oracle Forms runs the new form with the same Runform options as the parent form. If the parent form was a called form, Oracle Forms runs the new form with the same options as the parent form.

2. What is a visual attribute in Oracle Forms?
Visual attributes are the font, color, and pattern properties that you set for form and menu objects that appear in your application's interface.

3.How many types of Master and Detail relationships are there in Oracle Forms?
The various Master and Detail Relationships in oracle forms are:
a) NonIsolated = The Master cannot be deleted when a child is existing
b) Isolated = The Master can be deleted when the child is existing
c) Cascading = The child gets deleted when the Master is deleted.



4. What are the triggers related to master-Details Forms.
Following are three triggers which are created automatically as soon as we create a mater Details Block on oracle Forms.
ON-CHECK-DELETE-MASTER
ON-CLEAR-DETAILS
ON-POPULATE-DETAILS

5. What are the different canvas types available in Oracle forms?

Below are the 5 canvas types available in Oracle Forms
(a) Stacked canvas
(b) Content canvas
(c) Horizontal Tool bar
(d) Vertical Toolbar
(e) Tab canvas

6. What are the types of Blocks in Oracle Forms?
Base Table block - based on database table/views
Control Block - non-database items are placed here like Calculation values,buttons,checkbox etc.

7. What are the Various Block Coordination Properties?
The various Block Coordination Properties are
a) Immediate Default Setting: The Detail records are shown when the Master Record are shown.
b) Deffered with Auto Query: Oracle Forms defer fetching the detail records until the operator navigates to the detail block.
c) Deffered with No Auto Query: The operator must navigate to the detail block and explicitly execute a query

8. What are the different windows events activated at runtimes?

WHEN-WINDOW-ACTIVATED
WHEN-WINDOW-CLOSED
WHEN-WINDOW-DEACTIVATED
WHEN-WINDOW-RESIZED
Within these triggers, you can examine the built in system variable system. event_window to determine the name of the window for which the trigger fired.

9. How are Visual Attributes, Property Classes and Object Groups related?
So for Object groups we have Property Classes and for property classes we have visual attributes.

10. What are the trigger associated with image items?
When-image-activated fires when the operators double clicks on an image itemwhen-image-pressed fires when an operator clicks or double clicks on an image item.


Other Articles Related To Oracle Forms:
  1. How To Find Last Query Executed On The Oracle Form | Oracle Forms Interview Questions.
  2. How To Find Oracle Forms(fmb/fmx) Version
  3. Oracle Forms 6i Tutorial
  4. Oracle Forms Interview Questions & Answers - Oracle Forms FAQ- Part-1
  5. Oracle Forms Interview Questions & Answers - Oracle Forms FAQ- Part-3
  6. Oracle Forms Interview Questions & Answers - Oracle Forms FAQ- Part-4

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Oracle Apps Guy: Oracle Forms Interview Questions & Answers - Oracle Forms FAQ- Part-2
Oracle Forms Interview Questions & Answers - Oracle Forms FAQ- Part-2
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