ETLUtils: Utility Functions to Execute Standard Extract/Transform/Load
Operations (using Package 'ff') on Large Data
Provides functions to facilitate the use of the 'ff' package in
interaction with big data in 'SQL' databases (e.g. in
'Oracle', 'MySQL', 'PostgreSQL', 'Hive') by allowing easy importing directly into 'ffdf'
objects using 'DBI', 'RODBC' and 'RJDBC'. Also contains some basic utility
functions to do fast left outer join merging based on 'match', factorisation of data and a basic
function for re-coding vectors.