What is inventor2
Upcoming SlideShare
Loading in...5
×
 

What is inventor2

on

  • 191 views

Air

Air

Statistics

Views

Total Views
191
Slideshare-icon Views on SlideShare
191
Embed Views
0

Actions

Likes
0
Downloads
0
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    What is inventor2 What is inventor2 Presentation Transcript

    • Presentation OnAirline Management System
    • Introduction The internet revolution of the late 1990s sharply increased directuser access to databases. Organisations converted many of their phone interfaces todatabases into web interfaces, and made a variety of servicesonline. Therefore, it is very easy to book tickets and find otherinformation online related to airlines online
    • Types of Inventory Raw materials Purchased parts and supplies Work-in-process (partially completed) products (WIP) Items being transported Tools and equipment
    •  This document gives a brief discussion on EntityRelationship in Airline Reservation System, one ofthe representative applicationparticular type can land on a particular airport on theof Database Management System which is used forreservations scheduled day
    • Objectives of Airline Management Maximize the level of customer service byproviding booking facility. It is very easy to book tickets and find otherinformation online related to airlines online.
    • DBMS Architecture It provides a frame work ,which is proposed asstandard by ANSI. Three views are1. External View2. Conceptual View3. Internal View
    • External ViewPassenger_ id Passenger_name Phone_no676 Harpreet Sidhu 9897685765984 Simranjeet Singh 9878654332Passenger_ id Passenger_name Address676 Harpreet Sidhu Delhi984 Simranjeet Singh Chandigarh
    • Conceptual ViewPassenger_ id NumberPassenger_ name TextAddress MemoPhone_no NumberGender Text
    • Internal View It is the view about the actual physicalstorage of data . This level describes ‘how’ the data will beactually stored in the database. This level serves as a base .
    • Entity Relationship Model Entity – It is anything real or abstract about which wewant to store the data . Relationship – It specifies the association thatexists between one or more entities. Attribute – It is the characteristic which is common toall or most instances of particular entity.
    • Entity Passenger Flight Time Fare Ticket Location
    • Attributes Characteristics of entities Domain is set of possible values Primary keys underlined
    • FlightPassengerFlight TimeRelationshipPassengerBookingBoardsMakesArrival
    • Flight TicketFareFlight LocationPassengerRelationshipPaysReachHas
    • Example Of ER Model
    • Generalization
    • StudentGrad Student Post Grad StudentSpecialization
    • Normalization It is a process during which redundant relationschemas are decomposed by breaking up theirattributes in to smaller relation schemas thatpossess desirable properties.1. First N/F2. Second N/F3. Third N/F4. BNC N/F
    • EliminateRepeatingGroupsSecond N/FFirst N/FThird N/FBC N/FRemovingPartial keydependencyEliminateTransitivekeydependencyEliminateFunctionaldependencyNormalization Form
    • SQL Commands It is a simple and powerful language used to create ,access andmanipulate data and structure in the database . SQL Statements categorize in to1. Data Definition Language ( CREATE, DROP, ALTER )2. Data Manipulation Language (INSERT INTO,UPDATE ,DELETE )3. Transaction Control Language4. Query Language ( SELECT)
    • ER-Diagram
    • Data Definition Language Define the structure of a database.Types of DDL commands Create Alter Drop Rename
    • Create Command The CREATE TABLE statement is used to create atable in a database.Syntax Example CREATE TABLE table_name(column_name1 data_type,column_name2 data_type,column_name3 data_type,....) ;CREATE TABLE Passenger(PassengerId number primary key,PassengerName text(20),Address varchar(50),Phone _no number(10)) ;
    • INSERT CommandThe INSERT INTO statement is used to insert a newrow in a table.SyntaxINSERT INTO table_nameVALUES (value1, value2, value3,...)INSERT INTO table_name (column1, column2, column3,...)VALUES (value1, value2, value3,...)OR
    • ExampleINSERT INTO PassengerVALUES (678,‘Harpreet Sidhu’, ‘Delhi, 9889765897);ORINSERT INTO Passenger (Passenger_Id, PassengerName)VALUES (678, ‘Harpreet Sidhu);
    • Alter CommandSyntaxALTER TABLE table_nameADD column_name datatypeExampleALTER TABLE table_nameDROP COLUMN column_nameALTER TABLE PassengerADD DateOfBirth dateALTER TABLE PassengerDROP COLUMN DateOfBirthExample
    • Drop The DROP TABLE statement is used todelete a table Syntax DROP TABLE table_name DROP DATABASE database_name