Re: SQL help...
| От | Harald Fuchs |
|---|---|
| Тема | Re: SQL help... |
| Дата | |
| Msg-id | y297kzh1rae.fsf@dorando.intern.colibri.de обсуждение |
| Ответ на | SQL help... (Alex Hochberger <alex@feratech.com>) |
| Список | pgsql-general |
In article <1F3774AB3688D4118B1300508BD9641528A7E0@CHINA>, Alex Hochberger <alex@feratech.com> writes: > To any SQL wizards out there, > I have finally exhausted my SQL knowledge. > I have 3 tables that I need to do a fancy join on... > 1 stores the users > 1 stores the questions > 1 stores the user's answers to the questions (based on foreign keys to the > answers table) > I would like to create a result with the following columns: > some fields from the users, each of the questions > in each row should be the results from the users, and their user answers > Here is the tricky thing, people may have not answered each question, so I > would like to either leave that blank or put in a 0... Sounds like a LEFT OUTER JOIN.
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