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PRISM
- Derived Search Keys
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Definition
- Derived Search Keys are
combinations of letters and punctuation that you construct to
search PRISM records.
- Example:
- Title
Search key for Gone with
the Wind: gon,wi,th,w
- The Derived Keys are
created by taking letters from:
- personal names
- corporate author
names
- titles
- the combination of names and
titles.
- In a Derived Key search, a
word is considered any combination of characters
(letters, numbers, punctuation, etc) between two
spaces.
- Each Derived Key has a
unique pattern and punctuation that identifies the specific type
of Derived Key search to the PRISM system.
- Example:
- Title
Search key format: 3
ltrs,2
ltrs,2
ltrs,1
ltr
- Gone with the Wind:
gon,wi,th,w
Entering Derived
Keys
- Derived Keys are typed in
at the Home
Position, the initial space of
the top, blank line.
- Then hit the
<control>
<c>
keys.
Specific rules for
creating Derived Key search statements
- Include:
- Letters
- Numbers
- These symbols:
& $
% @ £
- Exclude:
- Punctuation
- Diacritics
- These symbols:
- # / +
= ±
- Initial articles (a, an, the,
and comparable ones in foreign languages)
but
include these articles within
titles.
Special cases in
using Stop Words
- What are normally Stop Words in
Keyword searches can be used in Derived Keys under certain
conditions.
- Derived Search Statements can
also be used with Commands.
- Example:
fin
dt
gon,wi,th,w
(dt =
derived
title)