Searching ProQuest: Date Restrictors

Scope

• You have two ways of limiting dates:
  • Selecting the Current, Backfile, or Deep Backfile components of the dataase.
  • Using Date Restrictors, which enable you to narrow your search to a range of dates.

Date Restrictors

• Date restrictors enable you to limit your search for articles based on:
  • When you think that they were published.
  • When you think an event occurred that articles would have been written about.

Usage

• Basic Search
  • You can type date restrictors as part of your search in Basic Search.
  • The field/command for limiting the date is PDN
• Search Wizard
  • You can be stepped through the process of adding date restrictors to a Basic Search.
• Guided Search
  • You have pull-down menus that enable you to limited dates by ranges of months and years.

Syntax / Examples

The following examples come from the Search Wizard's Date Restrictors display.
The "curent date" is assumbed to be June 02, 1999.

• Articles published within the last seven days

  PDN(>05/26/1999 AND <06/02/1999)

• Look for articles published within the past thirty days
  • PDN(>05/03/1999 AND <06/02/1999)
• Look for articles published within the past year
  • PDN(>06/02/1998 AND <06/02/1999)
• Look for articles published on or before a date
  • PDN(<06/02/1999)
• Look for articles published on or after a date
  • PDN(>06/02/1999)
• Look for articles published between two dates
  • PDN(>06/02/1999 AND <06/07/1999)

  There are additional formats. These can be seen Search Wizard's Date Restrictors display.

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