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.
Atomicity : Either all functions are laid out or none are. Users could not have to think about the effect of incomplete operations. DBMS ensures this by undoing the functions
Conflicting Operations in Schedule: The three simple ways of interleaved instruction implement of transactions T1 and T2. Please note that in the following tables the first col
Explain the structure of well formed formulae in relational calculus. Ans: a. An atom is a formula b. If P1 is a formula, after that so are ¬P1 and (P1) c. If P1 and P2 a
Mappings between Levels and Data Independence The 3 levels of abstraction in the database do not exist separately of each other. There must be some correspondence, or mapping
Describe Application programming interface? Application Programming Interface - Commercial SQL implementations take one of the two primary techniques for involving SQL in a p
The Internal or Physical Level The collection of files permanently stored on secondary storage devices is called as the physical database. The internal or physical level is t
write program
What are the typical phases of query processing
average response time?
what is the relationship between receipt and owner entities in computer sales and service company
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd