Hi friends, I have two data set and i want to search value of variables of each observation of data set to another data set and performed certain operation and create new data set or modified the current data set. i have tried using merge but i failed and again i tried macro but it did not work as well. please help me to generate the required output. i have very huge data set in order to explain the question i have created very small data set. All required data set is following product_test purchase There are 2 data set product_test and purchase. i have to search old_prod_id and old_store_id of product_test data set with prod_id and store_id of purchase data set where match found replace prod_id and store_id with new_prod_id and new_store_id if it occur more than once then merge the observation and create new data set or modified purchase data set. Desired result DATA product_test; INFILE DATALINES DELIMITER=',' DSD; INPUT new_prod_id $ new_store_id $ old_prod_id $ old_store_id $; DATALINES; 11,1,10,10 13,2,31,9 12,3,21,8 14,4,41,7 16,5,63,6 RUN; DATA purchase; INFILE DATALINES DELIMITER=',' DSD; INPUT id $ prod_id $ store_id $ quantity value; DATALINES; 1,10,10,10,100 2,31,10,4,10 3,31,9,3,100 4,31,9,12,100 5,21,8,6,100 6,63,6,5,100 7,21,8,3,100 8,41,7,2,100 9,21,8,1,100 10,63,9,5,100 RUN;
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