Re: How would I write this query...
От | Guy Rouillier |
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Тема | Re: How would I write this query... |
Дата | |
Msg-id | D4D1632DC736E74AB95FE78CD609007901260D@mtxexch01.add0.masergy.com обсуждение исходный текст |
Ответ на | How would I write this query... ("Jim Fitzgerald" <jfitz@spacelink.com>) |
Ответы |
Re: How would I write this query...
Re: How would I write this query... |
Список | pgsql-general |
Jim Fitzgerald wrote: > Hi - > > I have two tables, one of them has names of people and an associated > integer ID. The other table is a list of the people (from the first > table) by their ID number that have signed up for a class. How would > I write a query that would list all the people from the first table > that do not have any entries in the second table? Basically, I want > a listing of all my people who have not signed up for the class. select * from people where id not in ( select id from class_registration ) -- Guy Rouillier
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