get those "where-as-arguments" out of the SQL tutorial

[Mike Bayer]

We shouldn't have a whole "intro to generative" section, the select() construct should be using where() universally. The word "generative" is also something we should start calling "method chained", at least partially.

[Mike Bayer]

additionally:

the class doc for Select() starts out with all those append_XYZ() methods (ugh!). These should definitely all say "in-place" and should all refer to the method-chained version as preferred.

[Mike Bayer]

put more realistic examples for the "correlated subqueries" section and add more documentation here as to how correlation works

[Mike Bayer]

take out "Transforming a statement". I know this is here because we were trying to justify this whole system years ago...its justified. nobody needs this feature (except of course when they use it constantly via the ORM, but that's our little secret).

[Mike Bayer]

deletes. mention that you can get the number of rows matched. and with updates too.

[Mike Bayer]

part of this in 522b426a1ca1ad87e99deba8e8f27b169ca6b16f

[Mike Bayer]

finished in 97d7123674ef39d1ed86bdab247b5322a28d16d7

[Mike Bayer]

Removing milestone: 0.8.xx (automated comment)