[R] read.csv.sql() to select from a large csv file

[Gabor Grothendieck]

On Fri, Nov 23, 2012 at 5:05 PM, Juliane Struve
<juliane_struve at yahoo.co.uk> wrote:
> Rui, Anthony, and Gabor,
>
> I got this to work in the end:
>
> for(i in length(Names_EastCoast){
> name <- Names_EastCoast[i]
> sql <- paste("select * from file where ID =
> '",name,"'",sep = "")
> Data <- read.csv.sql("filename",sql = sql)
> }
>
> loops through all individuals in the csv file.

That sets i to the length of Names_EastCoast and then runs the query only once.

I think you want:

for(nam in Names_EastCoast) {
   Data <- fn$read.csv.sql("filename",
       sql = 'select * from file where ID = "$nam" ')
   # ... process Data ...
}


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