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hello everyone welcome to this lecture in todays scenario we are going to solve a problem where we have to send the first record into one target the last record into another target and the rest of the records into the third target or in another words the interviewer can ask that send the header into target 1 the footer or the trailer in target 2 and the detailed records that is the records left after removing the header and the trailer into the third target table this is a common scenario and lets go and solve this so we have a mapping lets create one well call it as header tilde and detail records for the demo we are having only one column and lets have a target here as you see we need to find out the first record and the last and you see we need a sequence to assign to this whole data set so that we can identify the records basis on the position so lets take a sequence generator here go to properties and just change it to one this is done lets quickly have an expression to st
