R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'rocker'

rocker::DBI_objects_and_functions |  | DBI package objects and functions in R6 rocker class | HTML | source | R code
rocker::Database_connections |  | Initiation of SQL database connections in R6 rocker class | HTML | source | R code
rocker::Installation_and_Object |  | Installation and set up of R6 rocker object | HTML | source | R code
rocker::Packages_and_databases |  | Usage of relational databases (SQLite, PostgreSQL and MariaDB) with R6 rocker class | HTML | source | R code
rocker::Password_storage |  | Protected password (credentials) storage inside of R6 rocker class | HTML | source | R code
rocker::S3_and_R6_functions |  | Usage of S3 class functions on R6 rocker class | HTML | source | R code
rocker::Transactions |  | Database transactions with R6 rocker class | HTML | source | R code