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What is meant by object-oriented data model?
The object-oriented paradigm is based on encapsulation of data and code related to an object in to a one unit, whose contents are not visible to the outside globe.
#questiontypes of keys examples..
prototype of a distributed information system for a national car part retail outlet chain.
Project Description: This is a Customer Management project. Customer data is presented in a text file. The program can load this text data into its database columns. The data ma
Explain pipelining. Ans: In order to describe pipelining in simple terms, think of it as breaking down processor functions into smaller and smaller parts. For instance,
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
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BCNF Boyce-Codd Normal Form A relation schema R is in BCNF if it is in 3NF and accepts an additional constraint that for every FD X A, X has to be a candidate key. If a relati
Data Manipulation Language Data manipulation language (DML) describes a set of commands that are used to query and change data within existing schema objects. In this case comm
What do you mean by persistence? How you will make your data persistent? Persistent data is the data, which has a longer lifetime than program which has created it. Enabling th
It defines that no primary key value can be null. This is as the primary key is used to recognize individual tuple in the relation. So we will not be able to recognize the records
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