CALGARY, July 8 : Big Tech has joined the party at the Calgary Stampede, a sign of growing interest in Canada from U.S.-based hyperscalers as the province of Alberta courts data center development.Oil and gas companies typically take center stage at the annual energy get-together, timed with the city's famous rodeo. But this year, U.S.-based tech giants have a noticeable corporate presence as well, according to sources attending the parties.Alphabet's Google has been the most highly visible, helping sponsor Stampede for the second year in a row. The company hosted a private party Sunday at the Corona Skydeck, an exclusive rooftop patio overlooking the Stampede rodeo grounds, with enough capacity for 300 guests.The party was attended by federal and provincial politicians and government staf