Query Language

The text search engine allows queries to be formed from arbitrary Boolean expressions containing the keywords AND, OR, and NOT, and grouped with parentheses. For example:

information retrieval

finds documents containing 'information' or 'retrieval'

information or retrieval

same as above

information and retrieval

finds documents containing both 'information' and 'retrieval'

information not retrieval

finds documents containing 'information' but not 'retrieval'

(information not retrieval) and WAIS

finds documents containing 'WAIS', plus 'information' but not 'retrieval'

web*

finds documents containing words starting with 'web'

Αρχή

Webmaster
Copyright © 2002-03 Harry Potter F. C.  All rights reserved.
Revised: January 07, 2003 .

Στείλε μου ένα e-mail στην διεύθυνση: my_selfgr@yahoo.gr.

Read My Guestbook! | Sign My Guestbook!

Τελευταία ενημέρωση: 07/01/2003 08:52

Επισκέπτες από την 01/01/03: