How do you find out whether a record is present in the physical file without r

How do you find out whether a record is present in the
physical file without reading the file?
for Example Employee No: 100 in an Employee master.How do
we find out whther 100 is present in Employee master
without reading the file?

Question Posted / sweta

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How do you find out whether a record is present in the physical file without reading the file? f..

Answer / rakesh

upto my knowledge i can use CHAIN .coz i am not reading the
file using chain key word

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