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9. Write a query to list a new column with the
difference in temp of the cities Delhi and Mumbai, Mumbai
and Jammu and soon. Consider the following table :
City_id City Temp.
1 delhi 40
2 Mumbai 35
3 Jammu 32
4 Pune 18

Question Posted / akjain

Answers were Sorted based on User's Feedback



9. Write a query to list a new column with the difference in temp of the cities Delhi and Mumbai, ..

Answer / milena

Hi here is my sql code, tested and works :

select t.CityName As 'CityName1',t.CityTemp
As 'CityTemp1' ,t1.CityName As 'CityName2',t1.CityTemp
As 'CityTemp2',(t1.CityTemp-t.CityTemp)*(-1) As Difftemp
From Test as t inner join Test As t1
on
t1.CityId=t.CityId+1

Result is :

Delhi 40 Mumbai 35 5
Mumbai 35 Jammu 32 3
Jammu 32 Pune 18 14

If you want to remove the CityTemp1, CityTemp2, you can do
so from select statement. :)

Is This Answer Correct ?    4 Yes 0 No

9. Write a query to list a new column with the difference in temp of the cities Delhi and Mumbai, ..

Answer / pradip jain

select t1.name + ' and ' t2.name , t2.temp -t1.temp from
temp t1
join temp t2 on t2.id=t1.id+1

Is This Answer Correct ?    0 Yes 3 No

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