I don't see why do you have to keep m alias in the first place.

>
>Here's an interesting problem I found in an application I inherited.
>
>I strongly advise against single letter aliases in SQL and in VFP from the perspective of readability and maintainability. Be especially careful with M as an alias in VFP SQL.
>
>create table tmpinvoices free (field1 c(10))
>local ltDatetime
>ltDatetime = datetime()
>select m.field1,m.ltDatetime as tdatetime from tmpinvoices m into cursor c_Result
>
>You will get an error that column ltDatetime is not found. OK. So drop the m. from ltDatetime, but now you are slowing your query - admittedly very little, but I don't like doing things half-fast. ;)
>
>I tried to add this to the mdot topic on the wiki, but my changes are not being saved.