Question { Bank Of America, 7811 }

write s sql query following table some duplicate present i
want unique one column duplicate another column display?

name id
a 1
a 1
b 2
b 2
c 3
i want the required output like
unique duplicate
name id name id
a 1 a 1
b 2 b 2
c 3

Answer

1.Sort the data 
2.Expression transformation
   a)create a variable1(integer) and var2(string)
   b) var2 = concatenate all fields
   b)  set the value of the variable to 1 if (concat all fields are = var2)
   c) create a o/p port = var2
-- output of the expression t/f will be like
   NAME ID NEW_COL
   a  1 0
   a  1 1
   b  1 0
   b  1 1
   c  1 0
 3. Use a router transformation and route the data based on the new thirt column.

Happy ETLing :)