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!
Question:
Using the data model express the following queries in SQL.
(a) Create the Table named "Cinema" and make the cinema_code to be the primary key of the relation and the Town and Manager number to be the Foreign key of the table. What are the assumptions you have to make for the code to compile successfully?
(b) Add a new column in the table named Cinema to store the telephone number of the cinema.
(c) Add a new record in the Cinema Table with the following values:
(d) Modify the population value for Cardiff from 300,000 to 350,000.
(e) List all the cinema names and the town in which the film ‘Star Wars' has been shown.
(f) List all the film names and their respective film taking (the number of shows) which has been played at Rex found in Cardiff.
(g) Create a view named Cinema_Rex_View which will shows all the films played at Rex found in Cardiff. The views should have the following columns.
Suppose an instruction takes 1 nanosecond to execute (on average), a page fault takes 20 microseconds of processor time, and it takes 300 microseconds of disk time to read or write
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
word limit no mentioned
Security: Data not needed by local applications is not stored at the site, therefore no unnecessary security violations may exist. But how can we carry out fragmentation? Fragm
Distributed Control and Data sharing: The geographical distribution of an organization can be showed in the distribution of the data; if a number of different sites are linked to e
Increased overheads on update : On the drawbacks side, it will need the system to ensure that all replicas of a relation are consistent. This shows that all the replicas of the rel
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational model is an ex
Question 1 Explain the concept of database recovery management. Explain the different levels of backup used for recovering data Question 2 What are the different types of par
1. Which relational algebra operations do not need the participating tables to be union-compatible? Ans: Join is the relational algebra operations that do not need the particip
I need some help with my normalization database homework.
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