Both QUALIFY and reusing an alias is Teradata specific. Your try with HAVING is failing, because this is the logical sequence of processing a query: To resolve this you have to use a Derived Table/Inline View and move the QUALIFY condition into the outer WHERE. The same technique must be used when you want to reuse an alias. EDIT: The 2nd query can be rewritten as:
Whether youâre trying to figure out what to pack for San Francisco in July or March, your packing list will stay more or less the same. Be sure to always bring a warm jacket, cooler layers, activewear, a day pack, sunscreen, and comfortable shoes.
As always in San Francisco, it can be windy near the coastline. However, most of the best places to visit in San Francisco are shielded from the wind and shouldnât be too chilly. The Best San Francisco October Activities