[R] SQL> select ... where "R variable"

[Gabor Grothendieck]

On Tue, Dec 13, 2011 at 10:54 AM, agent dunham <crosspide at hotmail.com> wrote:
> Before loading sql packages, i was wondering, once all packages required are
> installed, if  it's possible to do from R console sth like this:
>
> SQL> select v1 from sql_table
>        where v2 in ("R_variable")  # being "R_variable" a vector
>

Try this:

# test data
R_variable <- data.frame(x = 1:10)
sql_table <- data.frame(v1 = 1:10, v2 = rep(0:1, each = 5))

library(sqldf)
sqldf("select v1 from sql_table where v2 in (select x from R_variable)")

The result of the last line is:
  v1
1  6
2  7
3  8
4  9
5 10

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