Importing Files With Extension .sqlite Into R

I have a SQLite database exported (as a sqlite format 3 file?) from Scraperwiki with the .sqlite file extension/file suffix. How do I import it into R, presumably mapping the origi

Solution 1:

You could use the RSQLite package.

Some example code to store the whole data in data.frames:

library("RSQLite")

## connect to db
con <- dbConnect(drv=RSQLite::SQLite(), dbname="YOURSQLITEFILE")

## list all tables
tables <- dbListTables(con)

## exclude sqlite_sequence (contains table information)
tables <- tables[tables != "sqlite_sequence"]

lDataFrames <- vector("list", length=length(tables))

## create a data.frame for each tablefor (i in seq(along=tables)) {
  lDataFrames[[i]] <- dbGetQuery(conn=con, statement=paste("SELECT * FROM '", tables[[i]], "'", sep=""))
}

Solution 2:

To anyone else that comes across this post, a nice way to do the loop from the top answer using the purr library is:

lDataFrames <- map(tables, ~{
  dbGetQuery(conn=con, statement=paste("SELECT * FROM '", .x, "'", sep=""))
})

Also means you don't have to do:

lDataFrames <- vector("list", length=length(tables))