How to replace id with attribute corresponding to id of another table?

+1 vote

Using SQLAlchemy, I can query a bunch of files for their names and who created them:

>>> DBSession.query(Version.name, Version.created_by_id).filter(Version.id.in_(versions_list)).all()
[('file1', 1), ('file2', 2), ('file3', 3)]

The Version.created_by_id corresponds to the user ID. All users reside in a separate table:

>>> DBSession.query(User.id, User.name).all()
[(1, 'Abe'), (2, 'Cal'), (3, 'Dan')]

How can I, with one query, get this result back when I query my files?

[('file1', 'Abe'), ('file2', 'Cal'), ('file3', 'Dan')]
May 10, 2018 in Python by ariaholic
• 7,340 points
26 views

1 answer to this question.

0 votes

Use the following query statement and let me know as wether it worked

SELECT 
   name, color, shape
FROM 
   table1
      INNER JOIN 
         table2 ON table1.color_id = table2.color_id
      INNER JOIN 
         table3 ON table1.shape_id = table3.shape_id
answered Aug 8, 2018 by Priyaj
• 56,520 points

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