Oracle Reports Interview Questions & Answers Part -3

Questions:
  • Interview Questions on Oracle Reports Part-3
  • Oracle Reports Technical Interview Questions & Answers Part-3
  • D2K Technical Interview Questions And Answers Part-3

1. What are Placeholder Columns ?

A placeholder is a "dummy" column for which you can conditionally set the datatype and value via PL/SQL or a user exit. Placeholder columns are useful when you want to selectively populate a column with a value (e.g., each time the nth record is fetched, or each time a record is fetched containing a specific value, etc.).



2. What are the various Module Types in Reports ?


A You can build three types of modules with Oracle Reports:


* external queries, which are ANSI-standard SQL SELECT statements that can be referenced by modules


* external PL/SQL libraries, which are collections of PL/SQL source code that can be referenced by modules


* reports, which are collections of report-level objects and references to external queries and PL/SQL libraries (optional) that can be referenced by modules



3. What are Physical and Logical pages in Reports ?


A report page can have any length and any width. Because printer pages may be smaller or larger than your report's "page," the concept of physical and logical pages is used.



Physical Page : A physical page (or panel) is the size of a page that will be output by your printer.


Logical Page : A logical page is the size of one page of your actual report; one logical page may be made up of multiple physical pages. The Previewer displays the logical pages of your report output, one at a time.

4. What are the various page layout sections in Oracle Reports ?


A report has three sections : 
  • the report header pages, 
  • report body/margin pages, 
  • and report trailer pages.
5. What are various types of parameters ?


There are two types of parameters:

  •  default (system parameters)
  •  user-created (bind and lexical parameters)
6. How do you reference parameters and columns in reports ?


There are two ways to reference a parameter in Oracle reports:


* As bind references

* As lexical references


7. What are Bind Referencing and Lexical Referencing ?


Bind Referencing : Bind references are used to replace a single value in SQL or PL/SQL, such as a character string, number, or date. Use bind reference when you want the parameter to substitute only one value at runtime. Specifically, bind references may be used to replace expressions in SELECT, WHERE, GROUP BY, ORDER BY, HAVING, CONNECT BY, and START WITH clauses of queries.



Lexical Referencing : Lexical references are placeholders for text that you embed in a SELECT statement. Use Lexical reference when you want the parameter to substitute multiple values at runtime. You can use lexical references to replace the clauses appearing after SELECT, FROM, WHERE, GROUP BY, ORDER BY, HAVING, CONNECT BY, and START WITH.


8. What are the Types of Matrix report ?


 1. Single query 
 2. Multi query
 3. Nested Query 
 4. Matrix Break

9. What are widow lines ?

Widow lines are the minimum number of lines of the boilerplate text or field that should appear on the logical page where the text starts to print. If the number of lines specified for this property cannot fit on the logical page, then all lines of the boilerplate are moved to the next page.


10. What are widow records ?

Widow records are the minimum number of instances (records) that should appear on the logical page where the repeating frame starts to print. If the number of instances specified for this property cannot fit on the logical page where the repeating frame is initially triggered to print, then the repeating frame will start formatting on the next page.

11. What is 'page protect' property for objects ?


Page protect property for an object indicates whether to try to keep the entire object and its contents on the same logical page. Checking Page Protect means that if the contents of the object cannot fit on the current logical page, the object and all of its contents will be moved to the next logical page.

12. What is the 'Print Condition Type' property ?

'Print Condition Type' property specifies the frequency with which you want the object to appear in the report. The Print Condition Type options indicate the logical page(s) on which the object should be triggered to print with regard to the Print Condition Object.

13. What is the 'Print Condition Object' property ?

'Print Condition Object' property specifies the object on which to base the Print Condition Type of the current object. For example, if you specify a Print Condition Type of All and a Print Condition Object of Anchoring Object, the current object will be triggered to print on every logical page on which its anchoring object (parent object) appears.

14. What are the various values of the 'Print Condition Object' property in Reports ?

The various values are :

  • Anchoring Object : Anchoring Object is the parent object to which the current object is implicitly or explicitly anchored.
  • Enclosing Object : Enclosing Object is the object that encloses the current object.
15. What is the horizontal of vertical sizing property of objects ?

Horizontal of vertical sizing property specifies how the horizontal or vertical size of the object may change at runtime to accommodate the objects or data within it.

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Oracle Apps Guy: Oracle Reports Interview Questions & Answers Part -3
Oracle Reports Interview Questions & Answers Part -3
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