Answer Posted / sachin
the main difference between delete and truncate is that in
the truncate u will delete all the values from the table as
well as from the data dictionaries also while delete is used
to delete selected values and in the same way drop is use
to delete whole data from a table but the deleted data will
occupy the memory space in the extents but if we perform
truncate then the extents are free from the deleted data .....
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