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.
Ronald Reagan was the 40th president of the United States and was often called Ron or Ronnie. Barack Obama is the 44th president of the United States. President Obama was born in Honolulu, Hawaii and is of Kenyan and American origins. Barack is the Arabic word for blessed and is related to the Hebrew word/name Baruch.