Month: March 2018

More SQL

March 29, 2018 antony 0

Calculated field Calculated fields are attributes which have some calculation performed on them.  At the simplest it could be SELECT productPrice * 0.2 It should […]

Data warehouse

March 28, 2018 antony 0

Data warehouse A large store of data gathered from a wide range of sources, both old and new, within a company (and sometimes externally) and […]