object oriented database, Database Management System

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object oriented database

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Er diagrams, in an organization several projects are undertaken. Each proje...

in an organization several projects are undertaken. Each project can employ one or more employees. Each employee can work on one or more projects. Each project is undertaken on the

Advantages and drawbacks of ddbms, Advantages And Drawbacks Of Ddbms  T...

Advantages And Drawbacks Of Ddbms  There are various reasons for building distributed database systems, with sharing of data, reliability and availability, and speedup of query

Relational schema for person, Example: RELATIONAL SCHEMA for PERSON: ...

Example: RELATIONAL SCHEMA for PERSON: PERSON (PERSON_ID: integer, NAME: string, AGE: integer, ADDRESS: String) RELATION INSTANCE In this instance, m = 3 and n = 4

Which two files are used during operation of the dbms, Which two files are ...

Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.

Select statement-data manipulation language, SELECT Statement This stat...

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:

Determine the two special events, What are two special events? The two ...

What are two special events? The two special events are as "entry" and "exit". Any action which is marked as linked to entry event is executed whenever given state is entered v

Explain b-tree, What is B-Tree? A B-tree eliminates the redundant stora...

What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.

Which operator is cartesian product in relational algebra, Which operator i...

Which operator is Cartesian product in relational algebra? Cartesian product in relational algebra is a binary operator. (It requires two operands. e.g., P X Q)

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