Searching Dialog: Date
Limitation
Scope
- You sometimes may want to limit
your search to a range of dates for several reasons,
including:
- You will better target your
search if you are sure of a reasonable range of time during
which a record relevant to your information need is likely to
have been published.
- You may want up-to-date
information, such as medical info.
- You may want information
from a specific time period, such as articles contemporary to
the the attack on the World Trade Center.
- The most important aspect of
date limitation is that it increases the precision of your
searches.
Ways of limiting
your search
- pd
- publication
date
- py
- publication
year
- current#
- current year plus # of years before the current
year
Publication Date
(pd=)
- This limits your search results
to a specified date or range of dates.
- Format:
- Single date:
- Range of dates:
- Examples:
- ss impeach? and president
and pd=981200
- ss blackbird and crash???
and pd=951007
- ss s2 and hurricane? and
pd=920800:921100
Publication Year
(py=
or
/py)
- This limits your search results
to a specified year or range of years.
- Format:
- Single date:
- ss
<set or terms>
and py=yyyy
- s
<set or terms>/yyyy
(py
is not required when used as a suffix)
- Range of dates:
- s
<set or
terms> and
py=yyyy:yyyy
- ss <set or
terms>/yyyy:yyyy
(py
is not required when used as a suffix)
- Examples:
- ss
blackbird(3w)crash? and
py=n
number of back years
back year.
- Use it with the
begin
command when you
search single or multiple files, OneSearch categories, or a
combination of OneSearch categories and files.
- Formats
- current1
results include the current year plus 1 back
years
- current2
results include the current year plus 2 back years
- current3
results include the current year plus 3 back years
- current4
results include the current year plus 4 back years
- current5
results include the current year plus 5 back years
- show
current command
displays the active current command.
- To cancel current:
- Enter the active current
command followed by the word cancel, for
example,
current3 cancel.