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Infosys 10am slot answers
1)some bats
Only conclusion 1 folows
D
2)jitin at present
The data in both
A
3)some parks
Nethier consluion 1
4)ram's brother.
The data in both satesment
5)graph
C
125 per
6)percentage of accidents
B
35000
7)deperments
C
100
8)all men are strong
Neither consluion.
A
9)class 6th grpah
D
100
10)some pencil
Neither consluion
D
11)slipa
B
Is nessecary

Techinal ability
1)arrange
C
5 1 2
2)sings
A
+
3) c
108
4)find wrong num
B
36
๐Ÿ‘3
โœ…โœ…โœ…#HackerRank Department Summary - SQL HackerRank Solution

select d.name, count(unique(e.id)) as c
from department d, employee e
where d.id = e.dept_id
group by d.name
order by c desc, d.name;

select d.name, 0
from department d
left outer join employee e on d.id = e.dept_id
where e.id is null
group by d.name
order by d.name;

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