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 Hussein Obama II (US /bÉËrÉËk huËËseÉªn ÉµËbÉËmÉ/ ; born August 4, 1961) is the 44th and current President of the United States, and the first African American to hold the office.he inauguration of Barack Obama as the 44th President took place on January 20, 2009. In his first few days in office, Obama issued executive orders and presidential memoranda directing the U.S. military to develop plans to withdraw troops from Iraq.