On Sat, Jun 9, 2018 at 7:00 PM, Andy Goth <andrew.m.g...@gmail.com> wrote: > On 06/09/18 18:04, Simon Slavin wrote: >> >> CREATE TABLE tempLog ( >> datestamp TEXT COLLATE NOCASE PRIMARY KEY, >> centTemp REAL, >> fahrTemp AS (centTemp*9/5 + 32) ) >> >> I'm happy with another syntax as long as it does the same thing. > > > CREATE TABLE tempLog ( > datestamp TEXT COLLATE NOCASE PRIMARY KEY > , centTemp REAL); > CREATE VIEW tempLogView AS > SELECT * > , centTemp * 9 / 5 + 32 AS fahrTemp > FROM tempLog; > >> Niggle 1: Can a computed column refer to a column defined after it ? > > > With the view syntax I showed above, "computed" columns can only refer > to columns that exist in the underlying tables. I wish SELECT statement > expressions could refer not only to input columns but also output > columns that have been named using AS, but we don't have this feature.
SELECT *, (computation on Y) AS X FROM ( SELECT *, (some computation) AS Y FROM sometable) It is a little annoying having to nest them, but it works. -- Scott Robison _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
