dbns creates a DataBase NameSpace, adding all the tables available from
a given database connection into a namespace as tbl objects ready to
be manipulated by
dplyr.
library(dbns)
library(DBI)
db <- dbConnect(RSQLite::SQLite(), system.file("extdata/dbns.sqlite", package = "dbns"))
dbListTables(db)
#> [1] "dbns_iris" "dbns_mtcars"
attach_database(db, "dbns")
#> Attached 2 tables:
#> - dbns_iris
#> - dbns_mtcars
dbns_iris
#> # Source: table<dbns_iris> [?? x 5]
#> # Database: sqlite 3.22.0
#> # [/Library/Frameworks/R.framework/Versions/3.4/Resources/library/dbns/extdata/dbns.sqlite]
#> Sepal.Length Sepal.Width Petal.Length Petal.Width Species
#> <dbl> <dbl> <dbl> <dbl> <chr>
#> 1 5.1 3.5 1.4 0.2 setosa
#> 2 4.9 3 1.4 0.2 setosa
#> 3 4.7 3.2 1.3 0.2 setosa
#> 4 4.6 3.1 1.5 0.2 setosa
#> 5 5 3.6 1.4 0.2 setosa
#> 6 5.4 3.9 1.7 0.4 setosa
#> 7 4.6 3.4 1.4 0.3 setosa
#> 8 5 3.4 1.5 0.2 setosa
#> 9 4.4 2.9 1.4 0.2 setosa
#> 10 4.9 3.1 1.5 0.1 setosa
#> # ... with more rows
dbns_mtcars
#> # Source: table<dbns_mtcars> [?? x 11]
#> # Database: sqlite 3.22.0
#> # [/Library/Frameworks/R.framework/Versions/3.4/Resources/library/dbns/extdata/dbns.sqlite]
#> mpg cyl disp hp drat wt qsec vs am gear carb
#> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl>
#> 1 21 6 160 110 3.9 2.62 16.5 0 1 4 4
#> 2 21 6 160 110 3.9 2.88 17.0 0 1 4 4
#> 3 22.8 4 108 93 3.85 2.32 18.6 1 1 4 1
#> 4 21.4 6 258 110 3.08 3.22 19.4 1 0 3 1
#> 5 18.7 8 360 175 3.15 3.44 17.0 0 0 3 2
#> 6 18.1 6 225 105 2.76 3.46 20.2 1 0 3 1
#> 7 14.3 8 360 245 3.21 3.57 15.8 0 0 3 4
#> 8 24.4 4 147. 62 3.69 3.19 20 1 0 4 2
#> 9 22.8 4 141. 95 3.92 3.15 22.9 1 0 4 2
#> 10 19.2 6 168. 123 3.92 3.44 18.3 1 0 4 4
#> # ... with more rowsDetach a database namespace when you are done. Note that dbns does not disconnect the DBI connection.
detach_database("dbns")
#> dbns detatched
dbDisconnect(db)