Re: having trouble w/ having clause...
От | Mike Diehl |
---|---|
Тема | Re: having trouble w/ having clause... |
Дата | |
Msg-id | 20020508201406.6FC763FEF@dominion.dyndns.org обсуждение исходный текст |
Ответ на | Re: having trouble w/ having clause... (Ian Barwick <barwick@gmx.net>) |
Список | pgsql-sql |
Yep, this fixed it. Thanx, On Wednesday 08 May 2002 05:13 pm, Ian Barwick wrote: > On Wednesday 08 May 2002 22:58, Mike Diehl wrote: > > Hi all, > > > > This is a simple question, but for the life of me, I can't see what > > is wrong with this query: > > > > select host,slot,port,count(mac) as d from cam group by > > host,slot,port having d>1; > > Try: > > select host,slot,port,count(mac) as d from cam group by host,slot,port > having count(mac) > 1 > > See: > > http://www.postgresql.org/idocs/index.php?sql-select.html > > "output_name > > Specifies another namefor an output column using the AS clause. This > name is primarily used to label the column for display. It can alsobe > used to refer to the column's value in ORDER BY and GROUP BY clauses. > But the output_name cannot be usedin the WHERE or HAVING clauses; > write out the expression instead." > > HTH > > Ian Barwick -- Mike Diehl Network Tools Devl. Sandia Labs (505) 284-3137
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