Re: Cross-Tab queries in postgres?
Joe Conway <mail@joeconway.com>
From: Joe Conway <mail@joeconway.com>
To: wsheldah@lexmark.com
Cc: Martijn van Oosterhout <kleptog@svana.org>, Postgresql General <pgsql-general@postgresql.org>
Date: 2002-07-23T04:21:29Z
Lists: pgsql-general
wsheldah@lexmark.com wrote: > In MS Access, crosstab queries are implemented with the keyword TRANSFORM, IIRC. > The easiest way to figure them out is to build a cross-tab query with the GUI > query builder, then look at the SQL it produces. I think this might be > implemented in SQL Server as well. It can be handy, but if there's not something > comparable in the SQL standard, I'd rather see several other features added long > before this one. Just my two cents. > It's not in MSSQL Server at least through version 7 (just checked). I don't think it has been added in MSSQL 2000 either, but I can't really check that at the moment. MS Access syntax is like this: TRANSFORM Max(Table1.value) AS MaxOfvalue SELECT Table1.name FROM Table1 GROUP BY Table1.name PIVOT Table1.cat; but it *only* seems to allow TRANSFORM on an aggregate. Syntax TRANSFORM aggfunction selectstatement PIVOT pivotfield [IN (value1[, value2[, ...]])] Joe