UGC-NET CS 2016 question
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shiva0 asked Jan 19, 2019 • closed Jan 19, 2019 by Mk Utkarsh

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akash.dinkar12 asked Apr 8, 2019

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ISI2017-PCB-CS-3-b
Consider the following relations: $\text{STD_CHOICES } (\underline{\text{Student_ID}}, \underline{\text{Course_ID}}, \text{Semester})$ and $\text{COURSE_ASSIGN} (\underline{\text{Teacher_ID}}, \underline{\text{Course_ID}}, \underline{\text{Semester}})$. The ... the ID for all the students who have not been taught by the same teacher in more than one course across all semesters.

Consider the following relations:$\text{STD_CHOICES } (\underline{\text{Student_ID}}, \underline{\text{Course_ID}}, \text{Semester})$ and$\text{COURSE_ASSIGN} (\underline...

akash.dinkar12

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akash.dinkar12 asked Apr 8, 2019

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admin asked Mar 31, 2020

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NIELIT 2016 MAR Scientist B - Section C: 42
The relational algebra expression equivalent to the tuple calculus expression $\{t\mid t \in r \land (t[A]=10 \land t[B]=20)\}$ is $\sigma_{(A=10\:\lor\:B=20)}(r)$ $\sigma_{(A=10)}(r)\cup\sigma_{(B=20)}(r)$ $\sigma_{(A=10)}(r)\cap\sigma_{(B=20)}(r)$ $\sigma_{(A=10)}(r)-\sigma_{(B=20)}(r)$

The relational algebra expression equivalent to the tuple calculus expression$\{t\mid t \in r \land (t[A]=10 \land t[B]=20)\}$ is$\sigma_{(A=10\:\lor\:B=20)}(r)$$...

admin

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admin asked Mar 31, 2020

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Arjun asked Jul 2, 2019

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UGC NET CSE | June 2019 | Part 2 | Question: 31
Which of the following has same expressive power with regard to relational query language? Rational algebra and domain relational calculus Relational algebra and tuples relational calculus Relational algebra and domain relational calculus restricted to safe expression ... to safe expression i and ii only iii and iv only i and iii only ii and iv only

Which of the following has same expressive power with regard to relational query language?Rational algebra and domain relational calculusRelational algebra and tuples rel...

Arjun

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Arjun asked Jul 2, 2019

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go_editor asked Jul 24, 2016

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UGC NET CSE | September 2013 | Part 3 | Question: 47
Consider the following schemas: Branch_Schema = (branch_name, assets, city) Customer_Schema = (customer_name, street, city) Deposit_Schema = (branch_name, account_number, customer_name, balance) Borrow_Schema = (branch_name, loan_number, customer_name, amount) Which of the ... { t $\mid$ [?] $\in$ borrow(t(customer_name)[?] s[amount] > 12000}

Consider the following schemas:Branch_Schema = (branch_name, assets, city)Customer_Schema = (customer_name, street, city)Deposit_Schema = (branch_name, account_number, cu...

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go_editor asked Jul 24, 2016

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