Juni_Dev_log

▶ ETL (Problem) Introduction We are going to do the Transform step of an Extract-Transform-Load. ETL Extract-Transform-Load (ETL) is a fancy way of saying, "We have some crufty, legacy data over in this system, and now we need it in this shiny new system over here, so we're going to migrate this." (Typically, this is followed by, "We're only going to need to run this once." That's then typically..