[R] sqlite and r

Gabor Grothendieck ggrothendieck at gmail.com
Sun Apr 18 02:15:49 CEST 2010


1. There is no off the shelf facility although SQLite itself allows
you to write C functions and those presumably could call R but you
would have to do it yourself.

2. There are also some solutions discussed here which might be good
enough and are a lot easier than #1:
http://code.google.com/p/sqldf/#3._Why_does_sqldf("select_var(x)_from_DF")_not_work?

3. Also you could use a different database.   For example, sqldf also
allows you to use H2 or PostgreSQL in place of SQLite and they have
many more functions than SQLite.   See:
http://sqldf.googlecode.com


On Sat, Apr 17, 2010 at 8:04 PM, Wensui Liu <liuwensui at gmail.com> wrote:
> have used both for a while and feel they are like pea and carrot together.
> it is extremely handy to use sqlite engine for heavy data management
> from r instead of using r directly.
> i am also wondering  if i could define and register sqlite functions
> within r in the way similar to how we do in python. if this is doable
> in r, that will be perfect. any insight?
>
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