mySQL one-to-many query

Posted by Stomped on Stack Overflow See other posts from Stack Overflow or by Stomped
Published on 2010-04-11T15:39:59Z Indexed on 2010/04/11 15:43 UTC
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I've got 3 tables that are something like this (simplified here ofc):

  • users
    • user_id
    • user_name
  • info
    • info_id
    • user_id
    • rate
  • contacts
    • contact_id
    • user_id
    • contact_data

users has a one-to-one relationship with info, although info doesn't always have a related entry.

users has a one-to-many relationship with contacts, although contacts doesn't always have related entries.

I know I can grab the proper 'users' + 'info' with a left join, is there a way to get all the data I want at once?

For example, one returned record might be:

user_id: 5
user_name: tom
info_id: 1
rate: 25.00
contact_id: 7
contact_data: 555-1212
contact_id: 8
contact_data: 555-1315
contact_id: 9
contact_data: 555-5511

Is this possible with a single query? Or must I use multiple?

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