Re: simple UPDATE statement...
От | Justin |
---|---|
Тема | Re: simple UPDATE statement... |
Дата | |
Msg-id | 47D6F9CF.9060806@emproshunts.com обсуждение исходный текст |
Ответ на | simple UPDATE statement... (Joshua <joshua@joshuaneil.com>) |
Список | pgsql-general |
you need to strip the string apart using either regex which is difficult to use or split_part() http://www.postgresql.org/docs/8.3/interactive/functions-string.html The update will look something like this... Update customer set custfirstname = split_part(Name, ' ', 1) , custmiddlename = split_part(Name, ' ', 2) , custlastname = split_part(Name, ' ', 3) split_apart can give funky results if the data is not uniform. Joshua wrote: > Hello, > > I have a quick questions... consider the following information: > > I have a table 'customers' which looks like the following: > > firstname | middlename > -------------------|-------------------------- > Johnathan C Mark S > Joshua > Susan T > Jennifer > Marcus D > Mike G > Ted > William R > > I would like to write a SQL update statement that yields the following > results: > > firstname | middlename > -------------------|-------------------------- > Johnathan C Mark S > Joshua Susan T > Jennifer > Marcus D > Mike G > Ted > William R > > > Basically, this... I need to take the middle initial from the > 'firstname' field and place it in the 'middlename' field - that is if > only there is a middle initial in the 'firstname' field. > > Please let me know the best way to write the UPDATE statement. If you > have any questions or need more info from me please feel free to email. > > Thanks!!! > > > > >
В списке pgsql-general по дате отправления: