Optim delete
performance can be enhanced through many
different methods (turning off "compare whole row", locking tables, disabling triggers
and constraints, ensuring the primary key is indexed, etc). By far one of the biggest bangs for your
Optim buck is asking the database a question one time (can you please find and
delete n rows) but
having n be a long list
of primary key values, rather than just one value. There are two ways to accomplish this
multi-key lookup - Array Deletes and Forced Key Lookup.