Answer Posted / chiranjeevi

These are those which works on the variable level by
default.It should appear and besides the variables in
sas.The columnpointers are
1)@
2)@@
@:the '@'is a column pointer which commands SAS to hold the
line strongly.The '@' is if it used,it is trailing of '@'
pointer.It reads only the first line across the available
variables data.

@@:It is used for the entire data from the external source
or internal by reading into a single variable.

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