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What is meant by object identifiers?
Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single identifier, and no two objects have the similar identifier.
What is known as sequential file organization? In the sequential file organization, the records are kept in sequential order, according to the value of a "search key" of every
Define Single Value and Multivalued attribute Single value attribute comprise a single atomic value for an entity and multivalued attribute may have much more than one value f
What are the advantages of object oriented databases in comparison with others? Why it is still not widely used? Object oriented designs are coherent, efficient and less prone
SELECT Statement This statement is used for retrieving information from the databases. It can be coupled with many clauses. Let us talk about these clauses in more detail:
compare the features of oracle RDBMS with MySQL and Microsoft SQL server
Most computer systems authenticate users by asking them for the user name and password. However, the user names and passwords often can be guessed by hackers. Suggest an automated,
Project Description: This is going to be a School portal to handle each activities in school such as, School fees payment, online registration and every other payment, course re
What are the Issues when Selecting a Database Issues when Selecting a Database Storage space requirement: A database requires about triple storage space of the actua
What is DAG? The class-subclass relationship is shown by a directed acyclic graph.eg: employees can be temporary or permanent. We might be create subclasses temporary \and perm
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
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