Installation:

> install.packages("RMySQL", dependencies = TRUE)
> library(RMySQL)


Simple usage:

> con <- dbConnect(MySQL(), user="msandbox", password="msandbox", dbname="sakila", host="127.0.0.1", port=5527)
> dbGetQuery(con, "select * from sakila.sales_by_store")
store manager total_sales
1 Woodridge,Australia Jon Stephens 33726.77
2 Lethbridge,Canada Mike Hillyer 33679.79
> sales_by_film_category <- dbReadTable(con, "sales_by_film_category")
> qplot(category, total_sales, data=sales_by_film_category, geom="bar", fill=category)</p>

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