Apple Interview Question for Software Engineer / Developers


Country: United States
Interview Type: Phone Interview




Comment hidden because of low score. Click to expand.
1
of 1 vote

//selecting siblings
select *from person where
momid = 'given_momid' and
dadid = 'given_dadid' and
id != 'given_id';

- ba127004 March 10, 2012 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

select p1.id,p2.id
from person p1,person p2
where p1.momid=p2.momid
and p1.dadid=p2.dadid and p1.id <> p2.id

- codemonkey March 10, 2012 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 votes

This will return each pair twice: (A,B) and (B,A).
To fix this, replace your p1.id <> p2.id with p1.id < p2.id.

- Leigh March 10, 2012 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 vote

select *from Person where pid ="momid"
cid ="daid";

- yasha.khandelwal02 April 01, 2012 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

Query to return all siblings no matter the parents would be:

{
SELECT
Person.id, Person.name, Person.momid, Person.dadid,
, count(Person.id) as siblings

FROM
Person p1
JOIN Person p2
WHERE
p1.momid = p2.momid AND p1.dadid = p2.dadid
AND siblings > 1
}

- Edward Ashak November 01, 2012 | Flag Reply


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