garethtnash
asked on
Left Join Query - SQL
Hello Experts,
I'm confused! I'm building a query that queries multiple tables --
My query is with this section --
So the thing here is -
each member can have multiple (or no) records in dbo.[Member-Phone] but for the sake of this query I am looking to left join from a subset of results where Type = 1 AND DefaultP = 'Y'
Which should give me 1 or no record for each member.....
However when I run this query I get --
What's wrong with my logic here?
Thank you
I'm confused! I'm building a query that queries multiple tables --
SELECT M.[ID],
CASE WHEN [title] = 1 THEN 'Mr'
WHEN [title] = 2 THEN 'Mrs'
WHEN [title] = 3 THEN 'Miss'
WHEN [title] = 4 THEN 'Ms'
ELSE '' END AS Title,
[FirstName],
[LastName],
[Birthdate],
[ClubName] as TradingAs,
[AccountType],
CASE
WHEN [UK-Member] = 'Y' THEN 'UK'
WHEN [Eire-Member] = 'Y' THEN 'Eire'
WHEN [EU-Member] = 'Y' THEN 'EU' END AS PartnerCategory,
[RDA-ID],
[PGA-Number],
EX.[Exchequer-Code],
[Startdate],
[ExitDate],
[Profits],
[VAT-Liable],
P.Phone,
'Mobile',
'TGIEmail',
'AltEmail',
[URL],
PS.facebook,
PS.twitter,
[RetainerSurvey]
FROM [dbo].[Member] M
Left join dbo.[Member-Exchequer-Codes] EX on EX.MemberID = M.ID
left join dbo.PartnerSocialMedia PS on PS.PartnerID = M.ID
left join (select top (1) P.MemberID, P.Phone from dbo.[Member-Phone] P Where Type = 1 AND DefaultP = 'Y' Group by P.MemberID) P on P.MemberID = M.ID
My query is with this section --
left join (select top (1) P.MemberID, P.Phone from dbo.[Member-Phone] P Where Type = 1 AND DefaultP = 'Y' Group by P.MemberID) P on P.MemberID = M.ID
So the thing here is -
each member can have multiple (or no) records in dbo.[Member-Phone] but for the sake of this query I am looking to left join from a subset of results where Type = 1 AND DefaultP = 'Y'
Which should give me 1 or no record for each member.....
However when I run this query I get --
Msg 8120, Level 16, State 1, Line 35
Column 'dbo.Member-Phone.Phone' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.
What's wrong with my logic here?
Thank you
ASKER CERTIFIED SOLUTION
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If only one record can be returned and you are using TOP 1 then I don't see a reason to even have the group by. You can just remove it completely from that subquery.
ASKER