Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Database design
Database tables will be created for you on the Technology web server. The schema will be as follows. Please note that this is a simplified database structure, designed to make it straightforward to implement the assignment on a basic level; you can modify this or add additional tables if you wish. Only the first two tables are absolutely essential to implement a bare pass solution.
sc_users table
Records users in the system, and whether they are an administrator or a regular user.
ID INT PRIMARY KEY
isadmin TINYINT
name VARCHAR(255)
username VARCHAR(255)
password VARCHAR (255)
dayofbirth INT
monthofbirth INT
yearofbirth INT
filmshowings
Records the current film showings.
film VARCHAR(255)
date VARCHAR(255)
time VARCHAR(255)
screen INT
maxtickets INT
certificate VARCHAR(5)
mybookings
A table which can be used if you wish to implement code to allow users to view, change and cancel their bookings. Not required for a bare pass answer but useful for more advanced answers.
username varchar(255)
showingID INT
ntickets INT
Explain Thomas' Write rule. Show how it is different from timestamp ordering protol Ans: In timestamp-based concurrency control the thomas Write rule is a rule. Given a Timest
Column Constraints: NOT NULL, UNIQUE, CHECK, PRIMARY KEY, DEFAULT, REFERENCES, On delete Cascade : Using this key whenever a parent row is removed in a referenced
Selective replication: This is a combination of generating small fragments of relation and replicating them rather than a entire relation. The data should be fragmented on require
Some disadvantages of File Oriented System ?
Define the terms 1) physical schema 2) logical schema. Physical schema: The physical schema explains the database design at the physical level, which is the lowest lev
What is Alternate Key Alternate Key: This is the candidate key which is not taken as the primary key of the table. They are named so because although not the primary key, the
Describe the development process of Object oriented methods Object oriented methods have roots which are strongly anchored back in the 60s, functional and structured methods we
Explain what is Aggregation? Aggregation: Aggregation is an significant concept in database design whereas composite objects could be modelled during the design of database a
How nulls are treated in comparison operator? Along with comparison (relational) operators, the null values are ignored as we cannot derive the relation along with the given op
what factors might influence a company to outsource its IT infrascture.
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd