> error, because Local SQL may not be able to group on a function result. In
> that case, break the query into two parts and create a view. See "View" in
> the index of LocalSql.hlp in the BDE directory. The first query would be
> select extract (month from Date_reading) as MM, Reading
> from MyDB
> Save this query as, e.g., MonthReadings.sql.
> Your second query looks like this:
> select MM, sum (Reading) as Reading_Sum
> from "MonthReadings.sql"
> group by MM
> I don't know the purpose of your query, but you might need to select and
> group by the year as well as month.
> > This is my requirement: In a table each record represents a meter
> > want to know the month total. I tried the following SQL statement:
> > select id, extract(month from Date_reading) as MM, sum(Reading)
> > from MyDB
> > group by extract(month from Date_reading)
> > in this case I get "Capability not supported".
> > using:
> > group by MM I get "MM" "invalid field name".
> > using:
> > group by 2 I get "Capability not supported".
> > I am using the BDE and MyDB is a dBase table. May be this is the
> > but: There any way to get what I want ?