How to Join multiple columns that reference themselves

I have table A{
id,
name
}

table B{
id,
aid,
bid,
cid
}

I need to go left joins on Table B to table A.. and show all table B and the references values for each row.
cbruneAsked:
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Mike EghtebasDatabase and Application DeveloperCommented:
This will show all in TableA and those matching in TableB
Select 
a.id
, a.name
, b.aid
, b.bid
, b.cid
From tableA as a Left Join tableB as b
On a.id = b.id

Open in new window

This will show all in TableB and those matching in TableA
Select 
a.id
, a.name
, b.aid
, b.bid
, b.cid
From tableB as b Left Join tableA as a
On a.id = b.id

Open in new window


This will show all in TableB and all in TableA regardless they match or not
Select 
a.id
, a.name
, b.aid
, b.bid
, b.cid
From tableB as b Full Join tableA as a
On a.id = b.id

Open in new window

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Vitor MontalvãoMSSQL Senior EngineerCommented:
Why do you need a Left Join?
Olaf DoschkeSoftware DeveloperCommented:
From what you write you want to start in table B and left join table A, it's very basically
Select B.*, A.name from B left join A on B.aid = A.id

Open in new window

Or am I missing anything in the meanings of aid,bid and cid in table B?

Bye, Olaf.
Olaf DoschkeSoftware DeveloperCommented:
But let's say table A is persons and table B is threads aid, bid and cid are all person IDs, eg

aid = QuestionByPersonID
bid = AnswerByPersonID

then you do two left joins:
Select B.*, 
aa.name as Asking,
ab.name as Answering 
From B 
Left Join A as aa on aa.id = B.aid
Left Join A as ab on ab.id = B.bid

Open in new window

Bye, Olaf.
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