Relational algebraic operators, Database Management System

Assignment Help:

Problem

Explain at least five relational algebraic operators with a suitable example.

Note: All the above descriptions should be done by taking at least two examples from outside (Other than the text book examples)

Explanation of at least five relational algebraic operators with a suitable example(taken outside from textbook)

Related Discussions:- Relational algebraic operators

Column constraints-on delete cascade, CREATE TABLE prodtrans ( pno ...

CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);

Super keys, A super key is an attribute or set of attributes used to recogn...

A super key is an attribute or set of attributes used to recognize the records uniquely in a relation. For instance, in the Relation PERSON defines earlier PERSON_ID is a super

What is a shadow copy scheme, What is a shadow copy scheme? It is simpl...

What is a shadow copy scheme? It is simple, but efficient, scheme known as the shadow copy schemes. It is based on making copies of the database called shadow copies that singl

Er diagram of textile industry, complete er diagram of textile industry man...

complete er diagram of textile industry management

Remove all transitive dependencies - dependency diagram, 1. Use the Invoice...

1. Use the Invoice table structure shown below to answer the following questions: a) Draw the dependency diagram and identify the primary key and all dependencies, including al

Replication-design of distributed databases, Replication : It is definite a...

Replication : It is definite as a copy of a relation. Every replica is stored at a dissimilar site. The alternative to replication is to store only single copy of a relation which

Heap files (unordered file), Heap files (unordered file) Mostly these f...

Heap files (unordered file) Mostly these files are unordered files. It is the easiest and most basic type. These files having of randomly ordered records. The records will have

Briefly describe the different kinds of users of a dbms, Briefly describe t...

Briefly describe the different kinds of users of a DBMS. Ans: Different sorts of DBMS users are: (a) Software Engineers: These are the people accountable for developing ap

Distinguish among a datareader class and a dataset class, Question (a) ...

Question (a) Concurrent access to data from a database is a normal part of application program usage. Describe three approaches to concurrency control (b) Distinguish among

Relational algebra, what is union compatable?

what is union compatable?

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages