Actually problem is guidelines and way of execution to start it , I Need some demo example so that i use that and build my own  . As in my place SAS is not a common tool and i am not able to find a person who can guide me .well you know where i can see some helpful materials to understand the need and the way to use in my project . Thank Tom ... View more

Many Thank Tim and Every one for there valuable suggestion for this ... View more

here we see this data but when you get a txt files of lakhs of obs . I am trying to do something if i get large no obs and var , that i don,t need to look,  just use the code and then auto assign the length to respective var as you mention above . well thx for reply . ... View more

Many thanks for this Links  Cynthia Mad... ... View more

Yups Right Cynthia ... Can you help to resolve using SAS program ???  ... View more

but my question is simple is that will a program resolve this question ........:smileysilly: ... View more

Actually datalines is an alias of cards and vice-versa as per sas documentation..... ... View more

Look for this link you will be get the clarification of datalines VS csrds Vs lines. in Short lines , cards are initially used in SAS .because the SAS algoes read length, created in form to reading long data lines  in CARDIMAGE System Option  and that time they use cards and lines , look this for datalines .... http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000188182.htm and for cards .......... http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000289371.htm and then they enhance cards in datalines........ ... View more