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A '''database search engine''' is a [[search engine]] that operates on material stored in a digital [[database]].
 
== Search engines ==Name
 
Firoj Ansari
Categories of search engine software include:
Father name. Rafik Ansari
* Web search or full-text search (e.g. [[Lucene]]).
Mother name jaitoon Nesha
* [[Database]] or [[structured data]] search (e.g. [[Dieselpoint]]).
* Mixed or [[enterprise search]] (e.g. [[Google Search Appliance]]).
 
The largest online directories, such as [[Google]] and [[Yahoo]], utilize thousands of computers to process billions of website documents using [[web crawlers]] or [[spiders (software)]], returning results for thousands of searches per second. Processing high query volumes requires software to run in a distributed environment with redundancy.
 
== Components ==