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ACE Test Series : dependency preserving
R(A,B,C) is a relation.Which of the following don't have dependency preserving BCNF decomposition? A->B, B->C A->B,B->C,C->A AB->C,C->A None of these
R(A,B,C) is a relation.Which of the following don't have dependency preserving BCNF decomposition?A->B, B->CA->B,B->C,C->AAB->C,C->ANone of these
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Doubt on database normalization for relation having all prime attributes
In a relation, if every attribute is prime but key may not be simple then the relation is in ______. A. 1NF B. 2NF C. 3NF D. BCNF
In a relation, if every attribute is prime but key may not be simple then the relation is in ______.A. 1NFB. 2NFC. 3NFD. BCNF
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MadeEasy Test Series 2018: Databases - Indexing
Database file consist 1250 records. Block can hold either 3 records or (10 keys, 11 pointers). The maximum number of levels of index required for sparse B+ tree index for database file are ______.
Database file consist 1250 records. Block can hold either 3 records or (10 keys, 11 pointers). The maximum number of levels of index required for sparse B+ tree index for...
1 answer
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MADE EASY Relational Algebra
In a relational algebra ∩ is not a basic operator, to make it basic only relational operator we should have are X, – X, U U, –
In a relational algebra ∩ is not a basic operator, to make it basic only relational operator we should have areX, – X, UU, –
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Made Easy Test Series:Database-Super-Keys
Consider the relation $R\left ( A,B,C,D,E \right )$ $A\rightarrow BC$ $C\rightarrow E$ $B\rightarrow D$ $E\rightarrow A$ Total number of superkeys present in relation will be ____________________
Consider the relation $R\left ( A,B,C,D,E \right )$$A\rightarrow BC$$C\rightarrow E$$B\rightarrow D$$E\rightarrow A$Total number of superkeys present in relation will be ...
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GATE CSE 2017 Set 2 | Question: 14
Consider the following function implemented in C: void printxy(int x, int y) { int *ptr; x=0; ptr=&x; y=*ptr; *ptr=1; printf(“%d, %d”, x, y); } The output of invoking $printxy(1,1)$ is: $0, 0$ $0, 1$ $1, 0$ $1, 1$
Consider the following function implemented in C:void printxy(int x, int y) { int *ptr; x=0; ptr=&x; y=*ptr; *ptr=1; printf(“%d, %d”, x, y); }The output of invoking $...
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Control Statements
What will be the output of the below C program? #include <stdio.h> int xyz(int b) { return (b--); } int main() { int a = xyz(12); printf("%d", ++a); return 0; } (a)10 (b)11 (c)12 (d)13
What will be the output of the below C program?#include <stdio.h int xyz(int b) { return (b ); } int main() { int a = xyz(12); printf("%d", ++a); return 0; }(a)10 (b)11 (...
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C Programming
#include <stdio.h> int main() { int a=9; printf("%d %d %d",++a,a++,++a); return 0; } what is the output? According to me it should be 12 10 10
#include <stdio.h>int main(){ int a=9; printf("%d %d %d",++a,a++,++a); return 0;}what is the output?According to me it should be 12 10 10
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Conditional Expression
What is the output of given program? #include<stdio.h> int main() { int x; x = 4 > 8 ? 5!= 1<5 == 0 ? 1:2:3; printf("%d",x); return 0; } option a. 1 b.2 c.3 d.compilation error
What is the output of given program?#include<stdio.h>int main(){ int x; x = 4 8 ? 5!= 1<5 == 0 ? 1:2:3; printf("%d",x); return 0;}option a. 1 b.2 c.3 d.compi...