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File: examples/query_examples.txt

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File: examples/query_examples.txt
Role: Documentation
Content type: text/plain
Description: Some query examples for copy and paste
Class: HTML SQL
Parse and extract information from HTML using SQL
Author: By
Last change:
Date: 17 years ago
Size: 1,136 bytes
 

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Some query examples for copy & paste ;-) SELECT * FROM h1 ^ select all <h1> tags SELECT * FROM a ^ select all links SELECT * FROM td ^ select all <td>'s SELECT href as url, text FROM a ^ return href as url and text as text from all links SELECT * FROM a WHERE preg_match("/^http:\/\//", $href) ^ find all external links SELECT * FROM a WHERE preg_match("/^\/snippets/i", $href) and preg_match("/^array_/i", $text) ^ find all links starting with /snippets and with a link text starting with "array_" SELECT * FROM * ^ select all attributes of all tags ;-) SELECT id, name, password FROM user WHERE $status == "active" ^ select all <user> tags where status="active" (for XML files) SELECT * FROM * WHERE $id == "header" ^ return all tags with the $id = header SELECT * FROM a WHERE substr($href,0,1) != "/" ^ select links with URLs that start with / (mainly internal links) SELECT * FROM * WHERE $class == "nav_item" ^ select all tags with the class = nav_item SELECT * FROM a WHERE ($href == "foo.htm" and $title == "foo") or ($title == "bar") ^ complex query