please ignore the output order just i want compare the column2 value with the column1 values if column2 value is available in column1 values then column3 have to be prepare with the column2 value of the column 1 value like A B 1 2 2 4 4 7 in the above example i want compare B value 2 in the column A value 2 is available in the column A so then i want create column3 like C so ouput would be A B C 1 2 4 after completion of all columnB values comparition again i want compare columnC values with columnA and create columnD and soo on until end ... View more