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How Do Search Engines Work ?


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post-92747-0-56619600-1524806226_thumb.png

 

 
In the graphic, the quoted identifier string search returns 3 records in 0.25 seconds,
whereas, the search based on individual keywords returns 272 records in 0.24 seconds.
 
In T-SQL, this would be inverted I guess, as string to string, character to character matching, with quoted identifiers would be faster.
 
Do you agree ?
 
If this is the case, then how do search engines work ?  :sherlock:
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