How many types of columns are there and what are they?
Formula columns : For doing mathematical calculations and returning one value Summary Columns : For doing summary calculations such as summations etc. Place holder... Read more »
Archive for May, 2008
What is OLE Activation style property?
Specifies the event that will activate the OLE containing item. Read more »
What is Current record attribute property?
Specifies the named visual attribute used when an item is part of the current record. Current Record Attribute is frequently used at the block level to display the... Read more »
Diff. between VAT and Property Class?
Named visual attributes define only font, color, and pattern attributes; property classes can contain these and any other properties.You can change the appearance... Read more »
What is a visual attribute?
Visual attributes are the font, color, and pattern properties that you set for form and menu objects that appear in your application’s interface. Read more »
What is the difference between POST-DATABASE-COMMIT and POST-FORM-COMMIT?
POST-FORM-COMMIT fires once during the Post and Commit Transactions process, after the database commit occurs. The Post-Forms-Commit trigger fires after inserts,... Read more »
What is a Timer?
A timer is an ??internal time clock?? that you programatically create to perform an action each time the timer expires. Read more »
What is a STRIP_SOURCE generate option?
Removes the source code from the library file and generates a library file that contains only pcode. The resulting file can be used for final deployment, but cannot... Read more »
What are the advantages of libraries?
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... Read more »
What is a Library?
A library is a collection of subprograms, including user- named procedures,functions and packages. Read more »
What is NEW_FORM built-in?
When one form invokes another form by executing New_form, Oracle Forms exists the first form and releases its memeory before loading the new form. Calling NEW_FORM... Read more »
What is the difference between OPEN_FORM AND CALL_FORM
when one form invokes another form by executing OPEN_FORM, the first form remains displayed, and operators can navigate between the forms as desires. When one form... Read more »
What are Display items?
Display items are similar to text items with the exception that displays items only store and display fetched or assigned values. Display items are generally used... Read more »
What is a Combo Box?
The Combo Box style list item combines the features found in list and text items. Unlike the poplist or the text list style list items, the combo box style list... Read more »
What is a Text list?
The text list style item appears as a rectangular box which displays a fixed number of values. When the text list contains values that cannot be displayed(due to... Read more »