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‎2014-03-18 02:12 AM

exists Determines whether a specific field value exists in a specified field of the data loaded so far previous Returns the value of expression using data from the previous input record peek Returns the contents of the fieldname in the record sp

existsDetermines whether a specific field value exists in a specified field of the data loaded so far
previousReturns the value of expression using data from the previous input record
peek Returns the contents of the fieldname in the record specified by row in the internal table tablename.

GUYS PLS MAKE IT CORRECT IF IS THERE ANY WRONG IN THE DEFINATION OF  ABOVE  FUNCTIONS AND PLS TELL ME IN TECHINICAL IS IT CORRECT  OR  NOT?

THANKS IN ADVANCE

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