Scope

• Prefixes are codes that are used to search additional indexes.
• These indexes are not part of the Basic Index, which is searched when:
  • No codes are used.
  • When Suffix codes are used.
• Specific fields and codes vary according to the database, so you must check the Bluesheets for each database to determine which codes are available.

Example Fields

Fields	Format	Examples, Notes
Author	au=	s au=king, stephen
Company Name	co=	s co=apple computer
Corporate Source	cs=	ss cs=electronic frontier foundation
Document Type	dt=	s dt=review
Journal Name	jn=	s jn=content
Language	la=	s la=tibetan
Publication Date	pd=	s pd=981228 (Note: yymmdd format)
Publication Year	py=	s py=1998
Sales	sa=	s sa=>10b (Note: see below)
Update	ud=	s ud=3288

 

Numerical abbreviations:

• k = thousand
• m = million
• b = billion
• t = trillion