![]() Examples of each term and search strategy are given below. However, if you’re not constrained to a fixed limit on search terms (such as Google’s 32 words) or characters, it’s no longer a simple matter of this OR. Sage Publications Ltd.Boolean searching (named after George Boole) is used by most databases to focus searches. Writing Boolean search strings is typically a quick and simple affair, as most search engines and databases won’t let you construct anything longer than a few hundred characters. Boolean operators ( AND, OR, NOT) must be written in UPPER CASE Boolean operators are processed from left to right unless parentheses are used for nesting. Syntax: term field BOOLEAN term field BOOLEAN term field etc. Barker (Eds.), Evidence-based practice for nurses and healthcare professionals (4th ed., pp. Complex Boolean Search Enter your search in command language, indicating field qualifiers in square brackets. PubMed search: How to get optimum results? The Official Scientific Journal of Delhi Ophthalmological Society, 29(4), 17-21.
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