Hi Jag,   Thank you for reply . Here my need to create dataset with limit of 10 and alert_id should not fall under . for example A1 have 16 , 10 can be created in 1 file and 6 can be created in 1 file. for A2 there are 8 observations 1 dataset should create. A3 and A4 has 9 sothat can be created 1 dataset togather .     Can Any one of you reply on this urgent please a bit  ... View more