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!
Given the following relations Vehicle (Reg_no, make, colour) Person(eno, name, address) Owner(eno, reg_no) Write expressions in the relational algebra to answer the following queries:-(i) List the reg_no of vehicles owned by John.(ii) List the names of persons who own maruti cars.(iii) List all the red coloured vehicle.
Ans: (i) π reg_no (σ name='John' (PERSON OWNER)) // list of ref_no of vehicles (ii) π name (σ make='maruti' (PERSON OWNER VEHICAL)) // list of names of persons (iii) σ colour='red' (VEHICAL) // list all the red color
how to make an e r diagram?
Which of the operations constitute a basic set of operations for manipulating relational data? Relational algebra operations constitute a basic set of operations for manipulati
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
Creating a view: A query can be embedded within the CREATE VIEW STATEMENT A query can have complex select statements containing join, groups and sub- queries A quer
Project Description: I would like to get a database of a website which has clients email name and phone number. If you are able to get information from a website, by entering
What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
State your technical objectives for mining the data. Data Understanding. Describe the data For each attribute, give its description and data type. For numeric attributes
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
Why, generally does an object-oriented system use the relational DBMS? The reasons for using relational DBMS for OO systems could be any combination of following: a. Many or
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
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