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Recent questions tagged tuple-relational-calculus
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1
#gradeup
Dknights
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Dknights
44
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databases
relational-algebra
tuple-relational-calculus
gradeup-test-series
0
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2
Best Open Video Playlist for Tuple Calculus Topic | Databases
Please list out the best free available video playlist for Tuple Calculus from Databases as an answer here (only one playlist per answer). We'll then select the best playlist and add to GO classroom video lists. You can add ... but standard ones are more likely to be selected as best. For the full list of selected videos please see here
makhdoom ghaya
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Aug 20
by
makhdoom ghaya
25
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missing-videos
free-videos
go-classroom
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tuple-relational-calculus
1
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3
Applied Test Series
Consider the following table. Create table TEST ( one integer, two integer, primary key(one, two), check (one between 1 and 10), check (two between 1 and 5) ); How many tuples at most can this table contain?
LRU
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in
Databases
Nov 2, 2021
by
LRU
128
views
test-series
databases
tuple-relational-calculus
0
votes
2
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4
NIELIT 2016 MAR Scientist B - Section C: 40
In a relational Schema, each tuple is divided into fields called relations domains queries none of these
Lakshman Patel RJIT
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in
Databases
Mar 31, 2020
by
Lakshman Patel RJIT
895
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nielit2016mar-scientistb
databases
relational-model
tuple-relational-calculus
0
votes
2
answers
5
NIELIT 2017 July Scientist B (IT) - Section B: 56
Consider the join of a relation $R$ with relation $S$. If $R$ has $m$ tuples and $S$ has $n$ tuples, then the maximum size of join is $mn$ $m+n$ $(m+n)/2$ $2(m+n)$
Lakshman Patel RJIT
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in
Databases
Mar 30, 2020
by
Lakshman Patel RJIT
316
views
nielit2017july-scientistb-it
databases
joins
tuple-relational-calculus
0
votes
1
answer
6
NIELIT 2017 July Scientist B (IT) - Section B: 58
In tuple relational calculus $P1\to P2$ is equivalent to $\lnot P1 \lor P2$ $P1 \lor P2$ $P1 \land P2$ $P1 \land \lnot P2$
Lakshman Patel RJIT
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in
Databases
Mar 30, 2020
by
Lakshman Patel RJIT
302
views
nielit2017july-scientistb-it
databases
tuple-relational-calculus
0
votes
0
answers
7
Self Doubt
We know that Relational Algebra is $Procedural$ whereas TRC and DRC are $Non-Procedural$ querry languages. But what exactly differentiates them? Please explain using some example. In Relational Algebra we give what to retrieve ... https://stackoverflow.com/questions/32837278/difference-between-relational-algebra-and-relational-calculus/32841232#32841232 Please explain using some example
!KARAN
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in
Databases
Mar 30, 2019
by
!KARAN
262
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relational-algebra
tuple-relational-calculus
1
vote
0
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8
DBMS Korth Edition 6 Exercise 6 Question 15 (Page No. 253-254)
Consider the employee database shown here. Give expressions in tuple relational calculus and domain relational calculus for each of the following queries: a. Find the names of all employees who work for First Bank Corporation . b ... (person name, company name, salary) company (company name, city) manages (person name, manager name)
ajaysoni1924
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in
Databases
Mar 26, 2019
by
ajaysoni1924
550
views
databases
korth-edition6
relational-model
relational-algebra
relational-calculus
tuple-relational-calculus
1
vote
1
answer
9
DBMS Korth Edition 6 Exercise 6 Question 8 (Page No. 251)
Consider the relational database given below where the primary keys are underlined. Give an expression in tuple relational calculus for each of the following queries: a. Find all employees who work directly for Jones. b. Find all ... works (person name, company name, salary) company (company name, city) manages (person name, manager name)
ajaysoni1924
asked
in
Databases
Mar 26, 2019
by
ajaysoni1924
1.2k
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databases
korth-edition6
relational-model
relational-algebra
relational-calculus
tuple-relational-calculus
0
votes
0
answers
10
DBMS SUBJECT TEST
Let Depositor and Lender be relational schemas such that Depositor = {a/c number, cname , balance, branch} and Lender ={loan_number ,cname, amount , branch}. Now consider the following queries on the database : Query 1 : ( t | ∃D ∈Depositor ( t ... cname where D.cname = L.cname(Containing duplicates) PS: I'll merge this with the original question when my doubts are cleared
adityaaswal
asked
in
Databases
Mar 12, 2019
by
adityaaswal
374
views
databases
query
tuple-relational-calculus
0
votes
0
answers
11
made easy test series
Employee(Eid, Ename , salary) find Eid of employee(s) who make the highest salary. answer given is {E1.Eid | E1 ∈ Employee ^ ¬ ( ∃ E2 ∈ Employee ( E2.salary > E1.salary ))} please explain how query is returning correct value.
Satbir
asked
in
Databases
Jan 20, 2019
by
Satbir
362
views
made-easy-test-series
databases
tuple-relational-calculus
0
votes
1
answer
12
RaghuramKrishnan
relation parts(pid, pname, color) catalog(sid, pid, cost) find the sids of suppliers who supply every red part. can someone give the TRC and DRC expression for this?
aditi19
asked
in
Databases
Nov 26, 2018
by
aditi19
325
views
databases
relational-calculus
tuple-relational-calculus
1
vote
2
answers
13
Procedural And Non Procedural Query
What is the difference between procedural query language and non-procedural query language? Why Relation algebra is called procedural and TRC is called non-procedural?
Jason
asked
in
Databases
Jul 20, 2018
by
Jason
1.3k
views
relational-algebra
tuple-relational-calculus
1
vote
2
answers
14
Tuple Relational Calculus Query - Confirm the Answer
Relation Schema : Employee (Name, Ssn, Bdate, Address, Dept_number) Project (Pname, Pno, Dept_number) WorksOn (Essn, Pno, Hours) List the names of employees who work on all the projects controlled by department number 10. My Answer : ... name will be printed who work for some project at department no. 5 and not for the department no. 10 ?
Harsh Kumar
asked
in
Databases
Jul 2, 2018
by
Harsh Kumar
1.2k
views
tuple-relational-calculus
relational-calculus
databases
0
votes
1
answer
15
Tuple relational calculus - Seeking advice
I am not well versed in Predicate calculus and maybe, therefore, I am having problems writing queries in Tuple Relational Calculus and sometimes also in interpreting them. I want to know if there is any specific and definite procedure of ... of good books/lectures on predicate calculus. Any guidance or reference would be highly helpful for me. Thank You.
Harsh Kumar
asked
in
Databases
Jul 1, 2018
by
Harsh Kumar
351
views
tuple-relational-calculus
relational-calculus
databases
relational-algebra
1
vote
2
answers
16
Tuple Relational Calculus - What is the difference between these two types of bounded variables in the expressions?
tarunmaganti
asked
in
Databases
Apr 15, 2018
by
tarunmaganti
500
views
tuple-relational-calculus
databases
relational-calculus
0
votes
0
answers
17
Tuple Relational Calculus
ankitgupta.1729
asked
in
Databases
Dec 17, 2017
by
ankitgupta.1729
239
views
tuple-relational-calculus
0
votes
0
answers
18
Tuple relational calculus
What does the following tuple relational calculus query produce? • Student (Student_name, street, city) • Score (Student_name, Branch_name, marks) • Branch (Branch_name, HOD) • Manages (Student_name, Faculty_name)
Tuhin Dutta
asked
in
Databases
Dec 10, 2017
by
Tuhin Dutta
485
views
relational-calculus
databases
tuple-relational-calculus
0
votes
0
answers
19
Tuple relational calculus
Student (Student_name, street, city) • Score (Student_name, Branch_name, marks) • Branch (Branch_name, HOD) • Manages (Student_name, Faculty_name) What does the following tuple relational calculus query produce?
Tuhin Dutta
asked
in
Databases
Dec 10, 2017
by
Tuhin Dutta
292
views
databases
relational-calculus
tuple-relational-calculus
0
votes
0
answers
20
relational calculus
Parshu gate
asked
in
Databases
Dec 5, 2017
by
Parshu gate
712
views
relational-calculus
databases
tuple-relational-calculus
relational-algebra
1
vote
0
answers
21
#dbms query
how to read/breakdown/understand this query? which part wil be solved first? {t∣t∈πR−S(r)∧∀u∈s(∃v∈r(u=v[S]∧t=v[R−S]))}
iarnav
asked
in
Databases
Dec 2, 2017
by
iarnav
163
views
databases
relational-calculus
tuple-relational-calculus
1
vote
0
answers
22
#DBMS Explain these Relational Calculus Queries from GATE Question!
{t∣∃u∈R1(t[A]=u[A])∧¬∃s∈R2(t[A]=s[A])} {t∣∀u∈R1(u[A]="x"⇒∃s∈R2(t[A]=s[A]∧s[A]=u[A]))} Someone please explain how to read this queries or what does each query means in simple English. I ... only one tuple variable ranges over whole relation then what is this u? These are from - https://gateoverflow.in/742/gate2001-2-24
iarnav
asked
in
Databases
Nov 29, 2017
by
iarnav
788
views
relational-calculus
databases
tuple-relational-calculus
0
votes
1
answer
23
TUPLE CALCULUS
Parshu gate
asked
in
Databases
Nov 6, 2017
by
Parshu gate
940
views
relational-calculus
databases
tuple-relational-calculus
2
votes
0
answers
24
self doubt
in the question below in relational algebra if we use projection the relation is considered as a set and hence duplicates are not allowed will even trc and drc follow the same rule ?? rest all i understood only this point is doubtful https://gateoverflow.in/1546/gate2013_35 please clarify
Venkat Sai
asked
in
Databases
Oct 3, 2017
by
Venkat Sai
440
views
databases
tuple-relational-calculus
domain
relational-calculus
3
votes
1
answer
25
SQL and Tuple Calculus
Q. Given the relational schema : ENROLL (S#, C#, Section), S# is student number. TEACH (Prof, C#, Section), C# is course number. ADVISE (Prof, S#), Prof is Thesis advisor of S# PRE-REQ (C#, pre-C#), pre-c# is prerequisite course. GRADE ( ... of the same course. (iv) List all students number and course number (v) List the student number and course number who got grade A
Tushar Pandey
asked
in
Databases
Aug 26, 2017
by
Tushar Pandey
1.7k
views
relational-calculus
databases
tuple-relational-calculus
1
vote
0
answers
26
stackoverflow
I have to solve the queries using tuple relational calculus and I just want to know if I did them correctly. I'm using this database: EMPLOYEE: fname , minit , lname, ssn , bdate , address , sex , salary , superssn , dno DEPARTMENT: dname dnumber , ... a.Salary > b.Salary))} Any help will be much appreciated. edit: Assume that only one employee can have the highest/lowest salary.
shashank023
asked
in
Databases
Jul 16, 2017
by
shashank023
403
views
tuple-relational-calculus
relational-calculus
0
votes
0
answers
27
ace practice booklet
joshi_nitish
asked
in
Databases
Jun 20, 2017
by
joshi_nitish
475
views
tuple-relational-calculus
1
vote
1
answer
28
Tuple relational calculus
An undirected simple graph is represented as G(a,b) and a tuple (x,y)€ G if x and y are adjacent vertices. which of the following can not be computed by a TRC query ? (A) Set of vertices who belongs to four length cycle (B) Set of vertices ... zero (C) Set of vertices which belongs to some cycle (D) Set of vertices which have degree n-1 where (n=total number of vertices)
Geet
asked
in
Databases
Jan 14, 2017
by
Geet
425
views
databases
tuple-relational-calculus
relational-calculus
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