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Aptitude Que. & Ans.
DBMS Aptitude Que. & Ans.
Relational Model (Relational Algebra, Relational Calculus) DBMS Aptitude Questions and Answers
Page 2
List of Relational Model (Relational Algebra, Relational Calculus) DBMS Aptitude Questions and Answers
6) Which symbol is used for
Cartesian product
?
∏
∪
−
Χ
Answer
Correct Answer - 4
Χ
7) Which symbol is used for
Union
?
∏
∪
−
Χ
Answer
Correct Answer - 2
∪
8) Which symbol is used for
Set Difference
?
∏
∪
−
Χ
Answer
Correct Answer - 3
−
9) Which symbol is used for
Select Operation
?
σ
∪
−
Χ
Answer
Correct Answer - 1
σ
10) Which symbol is used for
Rename Operation
?
σ
∪
−
ρ
Answer
Correct Answer - 4
ρ
1
2
3
← ER Model Apt.
Functional Dependency Apt. →
TOP Interview Coding Problems/Challenges
Run-length encoding (find/print frequency of letters in a string)
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Find the level in a binary tree with given sum K
Check whether a Binary Tree is BST (Binary Search Tree) or not
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Capitalize first and last letter of each word in a line
Print vertical sum of a binary tree
Print Boundary Sum of a Binary Tree
Reverse a single linked list
Greedy Strategy to solve major algorithm problems
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Root to leaf Path Sum
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Toppers of Class
Print All Nodes that don't have Sibling
Transform to Sum Tree
Shortest Source to Destination Path
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