Specifies the
order in which Boolean operations must be carried out
Those
inside of parentheses are executed first.
"In the
article databases we have we have special programming that
processes all of the Boolean ANDS
for items in the same index first, before the
OR
or AND
NOT
operators."
Facilitates
searching when:
You are not
sure of which terms for a subject may be used:
f su
(cat
or
feline)
and su
leukemia
finds
both cat
leukemia
and feline
leukemia
You are not
sure of the spelling of terms:
f tw
(museum
or
musee)
and su
rodin
finds records
that have either museum
and musee
in
them