What is NOCOPY?

Answer Posted / santanu

NO COPY is compiler hint that process at run time not
compile time. this clause are use for pass the actual out
or in out parameter value as a call by referance insted of
call by value. call by value (mode out/inout) are copy the
value of actual parameter to the formal parameter if the
passing value is a large object it will take vary large
memory and it effect the performence.

create procedule (x in varchar2,y out nocopy varchar2)

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