No.

Use reports profile executable statement.Use SQL trace facility.

Because for each query, report has to open a separate cursor and has to rebind, execute and fetch data.

1. Perform the calculation in the SQL statements itself.2. Use a calculated / summary column in the data model.

Performing the calculation in the query is faster.

Because, in a where clause the condition is applied during data retrievalthan after retrieving the data.

Report 2.5 is object oriented.

LOVs can be attached to parameters in the reports 2.5 parameter form.

In Reports 2.0 the link tool has to be selected and then two fields to be linked are selected and the link is automatically created. In 2.5 the first field is selected and the link tool is then used to link the first field to the second field.

Fires when oracle forms first marks a record as an insert or an update. The trigger fires as soon as oracle forms determines through validation that the record should be processed by the next post or commit as an insert or update. c generally occurs only when the operators modifies the first item in the record, and after the operator attempts to navigate out of the item.

On-Check_delete_masterOn_clear_detailsOn_populate_details

It represents the coordination causing event that occur on the master block in master-detail relation.

Lov is a property where as list item is an item. A list item can have only one column, lov can have one or more columns.

Pop_listText_listCombo box

The pop list style list item appears initially as a single field (similar to a text item field). When the operator selects the list icon, a list of available choices appears.

The text list style list item appears as a rectangular box which displays the fixed number of values. When the text list contains values that can not be displayed, a vertical scroll bar appears, allowing the operator to view and select undisplayed values.

Display items are similar to text items with the exception that display items only store and display fetched or assigned values. Display items are generally used as boilerplate or conditional text.

when one form invokes another form by executing open_form the first form remains displayed, and operators can navigate between the forms as desired. when one form invokes another form by executing call_form, the called form is modal with respect to the calling form. That is, any windows that belong to the calling form are disabled, and operators cannot navigate to them until they first exit the called...

When one form invokes another form by executing new_form oracle form exits the first form and releases its memory before loading the new form calling new form completely replace the first with the second. If there are changes pending in the first form, the operator will be prompted to save them before the new form is loaded.

Libraries provide a convenient means of storing client-side program units and sharing them among multiple applications. Once you create a library, you can attach it to any other form, menu, or library modules. When you can call library program units from triggers menu items commands and user named routine, you write in the modules to which you have attach the library. When a library attaches another...