Re: Help with a query
От | Erwin Van de Velde |
---|---|
Тема | Re: Help with a query |
Дата | |
Msg-id | 200402262308.58230.erwin.vandevelde@ua.ac.be обсуждение исходный текст |
Ответ на | Help with a query (Alexander Cohen <alex@toomuchspace.com>) |
Список | pgsql-general |
Hi, Without further information, this is rather difficult, but assuming that you have a table with userdata with a primary key UID and a unique UserName, and that you have a table of usergroups with a primary key GID and unique GroupName, the best way is to make a third table Users_Usergroups e.g. where you put the couples (UIDX, GIDX) for a user with UID=UIDX and who is in group GIDX. The query would then be: SELECT GroupName FROM Users_Usergroups JOIN Users ON Users.UID = Users_Usergroups.UID JOIN Usergroups ON Usergroups.GID = Users_Usergroups.GID WHERE UserName Like 'The User'; Greetings, Erwin Van de Velde Student of University of Antwerp Belgium On Thursday 26 February 2004 22:47, Alexander Cohen wrote: > Hi, > > Im trying to get a list of all groups that a certain user is a member > of. Can anyone help me with the sql to get that? > > thanks!
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