Aggregate functions occur commonly in numerous programming languages, in spreadsheets, and in relational algebra. See also Cross-tabulation a.k.a. Contingency table
Barack H. Obama is the 44th President of the United States. His story is the American story â values from the heartland, a middle-class upbringing in a strong family, hard work and education as the means of getting ahead, and the conviction that a life so blessed should be lived in service to others.
President Barack Obama Favorite Color Songs Music Drink Hobbies Biography. Barack Obama is the current President of United States who was born in Honolulu, Hawaii on August 4, 1961. Obamaâs father belonged to Kenya who received an educational scholarship which enabled him to travel to United States.