CNBC's Jim Cramer praised Snowflake's (SNOW) Q2 results, calling it the "star of last night's show". The data cloud firm posted EPS of $0.35 vs. $0.27 estimates, with revenue of $1.14 billion topping forecasts. Cramer credited its deep ties with Microsoft Azure and Nvidia for driving growth. Snowflake shares surged nearly 14% in premarket trade.