This is how join works students = 1 rob 2 john 3 fred
gpas = 1 3.2 2 3.8 3 4.0 A = join students by *id*, gpas by *id*; A = 1 rob 1 3.2 2 john 2 3.8 3 fred 3 4.0 Should have a common filed for joining. -- *Thanks & Regards * *Unmesha Sreeveni U.B* *Hadoop, Bigdata Developer* *Center for Cyber Security | Amrita Vishwa Vidyapeetham* http://www.unmeshasreeveni.blogspot.in/
