Intension extension
Edgar F. Codd
Invented a notion
We now know as views
Now view and base relvar
Exchangeability
Got us all singing
Those view update blues
—
The duke of Ormond took a view yesterday of his troop, and ordered all that had bay or grey horses to change them for black.
—earliest known example (1693) of view updating, quoted in the Oxford English Dictionary from “A Brief Historical Relation of State Affairs 1678–1714,” by Narcissus Luttrell (1857)
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There shallow drafts intoxicate the brain,
And drinking largely sobers us again.
—
3.147.47.166