Answer / shubha

index denotes the displacement value and it is system
defined.if you are using index variable with occurs
clause,it need not have be defined in the data division.but
it should be mentioned as i.e syntax is:
levelno(02 to 49) identifier occurs n times indexed by
indxname

Answer / guest

index is sama as primary key....



ex:if u open your book, if u can find the index inf rist
tow pages. table index is also same as this....

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