What is a Poplist?
The poplist 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... Read more »
Archive for May, 2008
What is a TEXT_IO package?
The Text_IO package allows you to read and write information to a file in the file system. Read more »
How do you reference a parameter indirectly?
To indirectly reference a parameter Use the NAME_IN and COPY built-ins to indirectly set and reference the parameter??s value. Read more »
How do you reference a Parameter?
In PL/SQL, you can reference and set the values of form parameters using bind variable syntax. Example :PARAMETER.parameter_name=??VIKRAM??; or :block.item=PARAMETER.parameter_name; Read more »
What is the use of IMAGE_ZOOM built_in?
You can use the IMAGE_ZOOM built-in subprogram to manipulate images in image items. Read more »
What are the triggers associated with the image items?
The Following triggers are available for responding programatically to image items events When-Image-Activated First when the operator double-clicks on a image item When-Image_Pressed Fires... Read more »
What is the difference between Boilerplate images and image items?
Boilerplate Images BoilerPlate images are static images(either vector or bitmap) that you import from the file system or database to use as graphical elements in... Read more »
When do you use DATA_PARAMETER type?
When the value of a data parameter being passed to a called product is always the name of a record group defined in the current form. Data paremeters are used to... Read more »
What is the function of a ODBC manager?
The ODBC Manager manages all the data sources that exists in the system. Read more »
What is the function of a ODBC Driver?
The ODBC Driver allows the developer to talk to the back end database. Read more »
What description of a data source is required for ODBC?
The name of the DBMS, the location of the source and the database dependent information. Read more »
How is a connection establised by ODBC?
ODBC uses the description of the datasource available in the ODBC.INI file to load the required drivers to access that particular back end database. Read more »
What is inheritance?
Inheritance is a method by which properties and methods of an existing object are automatically passed to any object derived from it. Read more »
What is the difference between file server and a database server?
A file server just transfers all the data requested by all its client and the client processes the data while a database server runs the query and sends only the... Read more »
Why is an event driven program referred to a passive program?
Because an event driven program is always waiting for something to happen before processing. Read more »