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Question 21 :

What are object group?

Answer :

An object group is a container for a group of objects. You define an object group when you want to package related objects so you can copy or reference them in another module.


Question 22 :

What are referenced objects?

Answer :

Referencing allows you to create objects that inherit their functionality and appearance from other objects. Referencing an object is similar to copying an object, except that the resulting reference object maintains a link to its source object. A reference object automatically inherits any changes that have been made to the source object when you open or regenerate the module that contains the reference object.


Question 23 :

Can you store objects in library?

Answer :

Referencing allows you to create objects that inherit their functionality and appearance from other objects. Referencing an object is similar to copying an object, except that the resulting reference object maintains a link to its source object. A reference object automatically inherits any changes that have been made to the source object when you open or regenerate the module that contains the reference object.


Question 24 :

Is forms 4.5 object oriented tool ? why?

Answer :

yes , partially. 1) PROPERTY CLASS - inheritance property 2) OVERLOADING : procedures and functions.


Question 25 :

Can you issue DDL in forms?

Answer :

yes, but you have to use FORMS_DDL.
Referencing allows you to create objects that inherit their functionality and appearance from other objects. Referencing an object is similar to copying an object, except that the resulting reference object maintains a link to its source object. A reference object automatically inherits any changes that have been made to the source object when you open or regenerate the module that contains the reference object. Any string expression up to 32K:
- a literal
- an expression or a variable representing the text of a block of dynamically created PL/SQL code
- a DML statement or
- a DDL statement
Restrictions:
The statement you pass to FORMS_DDL may not contain bind variable references in the string, but the values of bind variables can be concatenated into the string before passing the result to FORMS_DDL.