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Oracle Forms :Object Features In forms

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Oracle Forms :Object Features In forms

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Oracle Forms :Object Features In forms

  1. 1. Oracle Object Features In Forms http://ebiztechnics.blogspot.com
  2. 2. Objectives • Identify which object types are supported • Describe how object types are represented within Form Builder • Create a block based on an object table • Create a block based on a relation table with an object or an REF column • Populate a REF column with an LOV http://ebiztechnics.blogspot.com
  3. 3. What is an Object Type? interest Close withdraw Check status Attributes Methods ACCOUNT Ac_no Ac_type Deposit Open_date http://ebiztechnics.blogspot.com
  4. 4. Overview on Objects • Object tables • Object columns • Object views • REF Columns REF http://ebiztechnics.blogspot.com
  5. 5. Oracle 8i Features in Forms Supported Oracle8i features • Large Objects: BLOB, CLOB, NCLOB, BFILE • User-defined objects – Object table – Column object – REF column Unsupported Oracle8i features • Collection types • Stored procedures that return object values http://ebiztechnics.blogspot.com
  6. 6. How Form Treats Objects Object_B Attr_B1 Attr_B2 Attr_A3 Nested Objects Attr_A1 Attr_A2 Object_A Attr_A1 Object_A Attr_A3 Attr_A2_B1 Attr_A2_B2 Items in a Form http://ebiztechnics.blogspot.com
  7. 7. Creating Data Blocks • Blocks based on object tables • Blocks based on object columns • Blocks with REF Lookups http://ebiztechnics.blogspot.com
  8. 8. Block Based on Object Tables http://ebiztechnics.blogspot.com
  9. 9. Block Based on Object Columns http://ebiztechnics.blogspot.com
  10. 10. Blocks with REF Lookups http://ebiztechnics.blogspot.com
  11. 11. Using REF Lookup Value Select REF attribute columns: This causes the columns to appear as data items at run-time. Select the REF item itself: • This causes the item to be placed on a Null canvas. • The item does not appear at run time. • The item is available for coding purposes. http://ebiztechnics.blogspot.com
  12. 12. LOVs for REFs http://ebiztechnics.blogspot.com
  13. 13. Summary • Identify supported Oracle8i object types • Define data blocks based on object tables • Define data blocks based on tables with object columns or REF columns • Populate REF columns with an LOV http://ebiztechnics.blogspot.com

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