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What is Object Oriented model?
This model is based on collection of objects. An object has values stored in instance variables with in the object. An object also having bodies of code that operates on the object. These bodies of code are known methods. Objects that contain same types of values and the similar methods are grouped together into classes.
The Maximum no of key fields that can be used in a header is?? 50
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
Draw an ER diagram for company''s database schema
List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
Whst is logical schema ? Logical schema is the entire database.
what is cascading? what is rollback cascading? please explain in detail
how to operate database in access ?
external and internal mapping with examples
What it creates while a primary key is combined with a foreign key? It creates Parent-Child relation ship between the tables that connect them while a primary key is combined w
Explain the use of constraints in functional model with suitable example. A constraint shows relationship between two objects at same time, or among various values of the sam
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