Friday, May 25, 2012

MS Access, SQL JOIN syntax for 3-way table join

In Microsoft Access, if you want to do more than one LEFT JOIN, you have to use parenthesis in the FROM clause otherwise, you get a "Missing Operator" error.



  1. SELECT a.columna, b.columnb, c.columnc
  2. FROM ((tablea AS a) LEFT JOIN tableb AS b ON a.id = b.id)
  3. LEFT JOIN tablec AS c ON a.id = c.id
  4.  
  5.  
  6. --Or, without the AS syntax...
  7. SELECT tablea.columna, tableb.columnb, tablec.columnc
  8. FROM (tablea LEFT JOIN tableb ON tablea.id = tableb.id)
  9. LEFT JOIN tablec ON tablea.id = tablec.id

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