1 / 4

Boolean operators

Boolean operators. AND both words must be present in the record for it to be retrieved OR either word or both must be present in the record for it to be retrieved NOT the first word must be present, but not if the second is , for it to be retrieved. U se with care!. Boolean operators.

gent
Télécharger la présentation

Boolean operators

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Boolean operators • AND • both words must be present in the record for it to be retrieved • OR • either word or both must be present in the record for it to be retrieved • NOT • the first word must be present, but not if the second is, for it to be retrieved. Use with care!

  2. Boolean operators OR AND university OR higher education NOT Durham AND University student NOT part-time

  3. Boolean operators • use the Boolean operators to help you express your search logically e.g. AND AND

  4. Synonyms and spellings • think about other terms which mean the same i.e. synonyms, or related terms • remember alternative spellings e.g. US vs British AND AND OR OR

More Related