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.
barack obama is the 44th and current president of the united states and the first african american to serve as u s president first elected to the presidency in 2008 he won a second term in 2012n november 4 2008 barack obama defeated republican presidential nominee john mccain 52 9 percent to 45 7 percent to win election as the 44th president of the united states and the first african american to hold this office