What is FORMS_MDI_WINDOW?
forms run inside the MDI application window. This property is useful for calling a form from another one. Read more »
Archive for May, 2008
What is mouse navigate property of button?
When Mouse Navigate is True (the default), Oracle Forms performs standard navigation to move the focus to the item when the operator activates the item with the... Read more »
What are ALERT?
An ALERT is a modal window that displays a message notifying operator of some application Condition. Read more »
What are record groups?
A record group is an internal Oracle Forms data structure that has a column/row framework similar to a database table. However, unlike database tables, record groups... Read more »
If you have property class attached to an item and you have same trigger written for the item ?
Item level trigger fires , If item level trigger fires, property level trigger won’t fire. Triggers at the lowest level are always given the first preference.... Read more »
What are property classes ? Can property classes have trigger?
Property class inheritance is a powerful feature that allows you to quickly define objects that conform to your own interface and functionality standards. Property... Read more »
What are the types of triggers and how the sequence of firing in text item?
Triggers can be classified as Key Triggers, Mouse Triggers ,Navigational Triggers. Key Triggers :: Key Triggers are fired as a result of Key action.e.g :: Key-next-field,... Read more »
What is SECURE property?
Hides characters that the operator types into the text item. This setting is typically used for password protection. Read more »
What are the responsibilities of a Server?
1. Manage resources optimally across multiple clients. 2. Controlling database access and security. 3. Protecting the databse and recovering it from crashes. 4.... Read more »
What is the first work of Client process?
A client process at first establishes connection with the Server. Read more »
What are the disadvantages of the client/server model?
Heterogeneity of the system results in reduced reliablity. May not be suitable for all applications. Managing and tuning networks becomes difficult. Read more »
What are the advantages of client/server model?
Flexibility of the system, scalability, cost saving, centralised control and implementation of business rules, increase of developers productivity, portability,... Read more »
What are the three components of a client server model?
A Client, A Server and A Network/Communication software. Read more »
Why is it better to use an integrity constraint to validate data in a table than to use a stored procedure?
Because an integrity constraint is automatically checked while data is inserted into a table. A stored has to be specifically invoked. Read more »
Why are the integrity constraints preferred to database triggers?
Because it is easier to define an integrity constraint than a database trigger. Read more »