deep copy
deep copy · deep copies
A copy of a data structure duplicating not only the structure itself, but all…A copy of a data structure duplicating not only the structure itself, but all structures to which it is linked.
Meaning
1 sensesA copy of a data structure duplicating not only the structure itself, but all structures to which it is linked.
Don't try to make a deep copy of that: you'll pull in half the database.