Explain degree of relation, Database Management System

Assignment Help:

Explain degree of relation?

Degree of a Relation - The degree or arity of a relation is the number of attributes n of its relation schema.

Related Discussions:- Explain degree of relation

Backward recovery (undo), Backward Recovery (UNDO): In this system the unco...

Backward Recovery (UNDO): In this system the uncommitted changes made by a transaction to a database are undone. Instead the system is reset to the last consistent state of databa

Mapping, external and internal mapping with examples

external and internal mapping with examples

Unnormalize form, employee(empid,empname,dept,telno,mobno, add,sssno,tinno,...

employee(empid,empname,dept,telno,mobno, add,sssno,tinno,WEdates,WEcomp,WEadd,WEpos,WEres) this is a employee record which is need to be normalize.the WE means work experience

Define the term- actors and data stores, Define the term- Actors and Data...

Define the term- Actors and Data Stores Actors: An actor is the active object which drives data flow graph by producing or consuming values. Actors are attached to inputs a

Increased parallelism-data replication, Increased parallelism : Since the r...

Increased parallelism : Since the replicated date has several copies a query can be distributed or can be answered from the smallest loaded site. Also, with more replicas you have

Explain about primary key, Explain about primary key Primary Key: It ...

Explain about primary key Primary Key: It is one of the candidate keys that are taken to be the recognizing key for the entire table. E.g. although there are two candidate ke

Define Fifth Normal form is concerned with, Define Fifth Normal form is con...

Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.

Identify the critical activities, Consider a systems development project wi...

Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design

Define instance and schema, Define instance and schema? Instance: Colle...

Define instance and schema? Instance: Collection of data stored in the data base at a certain moment is Schema: The overall design of the data base is known as the data base

ER model, coventions for displaying an ER schema as ER diagram

coventions for displaying an ER schema as ER diagram

Write Your Message!

Name

Email id

Message

Verfication Code

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

User Account

All Pages