README.md

In yhat/db.r: A Database Exploration Tool with Assisted Querying and Schema Exploration

db.r

Warning: There is a bug when using db.r in RStudio. We are working on resolving the issue!

Installation

On CRAN

> install.packages("db.r")

Using devtools

> library(devtools)
> devtools::install_github("yhat/db.r")

Database specific packages. You'll probably need one or many of these.

> devtools::install_url("http://cran.r-project.org/src/contrib/RSQLite_1.0.0.tar.gz")
> devtools::install_url("http://cran.r-project.org/src/contrib/RMySQL_0.9-3.tar.gz")
# not sure why but Postgres needs to be downloaded manually
# http://cran.r-project.org/src/contrib/RPostgreSQL_0.4.tar.gz
# unzip, then
> devtools::install("/path/to/RPostgreSQL_0.4")

Whirlwind Tour

> library(db.r)
> db <- DB(username="kermit", password="rainbowconnection",
    hostname="dw.muppets.com", dbname="muppetdb", dbtype="postgres")
> db$tables
> db$tables$jokes
> db$tables$jokes$head()
> db$tables$jokes$all()
> db$tables$jokes$sample()
> db$query("select * from jokes;")
> db$query_from_file("joke_query.sql")
> db$find_table("jok*")
> db$find_column("*id*")

TODO

• [ ] Database Support
  • [x] postgres
  • [x] redshift
  • [x] mysql
  • [x] sqlite
  • [ ] mssql
  • [ ] oracle

yhat/db.r documentation built on May 4, 2019, 2:33 p.m.