< Boolean operator discovers all files with a date property value before 11/11/2017.
Boolean Operators exist as simple words (AND, OR, NOT, or AND NOT) employed as conjunctions to combine or exclude keywords in a search, resulting in more observant and productive results. This should save time and effort by destroying inappropriate hits that must be scanned before discarding. In computer science, a Boolean expression exists as an expression utilized in programming languages that produce a Boolean value when evaluated. A Boolean value exists either true or false.
The Boolean expression exists in a particular case of an integer expression that returns either TRUE or FALSE. TRUE includes the numeric value of 1, FALSE is equal to 0. In some cases, a Boolean expression can return NULL. There exist three basic Boolean search commands: AND, OR, and NOT. AND searches discover all of the search terms. For example, searching on dengue AND malaria AND zika returns only outcomes that include all three search terms. Very limited results.
Hence, < Boolean operator discovers all files with a date property value before 11/11/2017.
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