4 votes
3
In a relational algebra ∩ is not a basic operator, to make it basic only relational operator we should have areX, – X, UU, –
0 votes
4
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...
3 votes
6
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 ...
0 votes
12
#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
0 votes
14
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...