Possible Join of One Table Field to Two Master Table Fields?

• liam.bell

  SSC Enthusiast

  Points: 103

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  November 17, 2008 at 9:32 am

  #196365

  Came across a small problem.

  I have a master table that contains a record of each member. In this talbe there are two fields; "HomeState", and "WorkState". Both of these fields have a Int value representing the ID value of the corresponding state in the States table.

  I'm trying to pull back the data as such:

  Member, HomeState, WorkState

  Joe.Smoe, TX, AZ

  Jane.Doe, VA, DC

  What sort of JOIN would one use to accomplish this? Is it even possible?

  Cheers.

• ChrisM@Work

  SSC Guru

  Points: 186127

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  November 17, 2008 at 9:36 am

  #899397

  Liam, you need to join the states table twice:

  SELECT m.member, h.HomeState, m.WorkState

  FROM master m

  LEFT JOIN States h ON h.[ID] = m.HomeState

  LEFT JOIN States w ON w.[ID] = m.WorkState

  Cheers

  ChrisM

  ^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

  For fast, accurate and documented assistance in answering your questions, please read this article.
  Understanding and using APPLY, (I) and (II) Paul White
  Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

• liam.bell

  SSC Enthusiast

  Points: 103

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  November 17, 2008 at 9:46 am

  #899411

  You're a champion, Chris!

  Thank you very much!