The disadvantages of a web query is that the internet might be busy when you try to do one. The information could also be faulty and you might have to sort through them.
Web Search Results are termed as Query.The webmaster tool of every search engine records the query raised with it. On each query, it lists the website or content available with it by searching the requisite keywords in the query raised.
Web query
A web query.
You might want to use a web query to capture data when you need to extract information from a website that is regularly updated, such as stock prices, weather updates, or news headlines. Web queries can automate the process of retrieving this data, saving time and ensuring that you have the most recent information at your fingertips.
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The traditional method of creating a web query uses the New Web Query menu command found on the Data menu under Import External Data.See related links for examples.
In programing language, cfquery refers to a "ColdFusion query" where a search (query) is run against either a database or set of databases in a web environment.
Worksheet
If you want to execute database queries anywhere in Magento this link will help you http://web-funda.blogspot.com/2009/06/write-mysql-database-query-in-magento.html
I think the answer to your query is a "funnel spider"............ but don't hold me to that........
The main advantage of using a web query to get information is the ability to retrieve real-time data directly from a website or online database without manual data entry. Web queries can automate the process of data retrieval, saving time and reducing the risk of errors associated with manual extraction.