选择查询以返回一列包含域名的所有行

Question

I have a column that stores URLs and I would like to generate a select query to pull back all URLs containing particular domain name(s).

Example of URLs stored: http://www.fox.com/files/apple.jpg , http://mail.redfox.com/help/index.aspx , http://apple.com/ etc.

I know what you're already thinking, just use LIKE.

The reason I can't is: SELECT * WHERE Domains IS LIKE %fox.com% it will return http://www.fox.com/files/apple.jpg along with http://mail.redfox.com/help/index.aspx (since they both contain fox.com).

I'm not all the savvy with SQL other than your basic queries, SQL Server can do some sort of regex magic I'm unfamiliar with?

Answer 1

You could test the domain name for both subdomains and naked domain:

WHERE Domains IS LIKE '%.fox.com/%' OR Domain IS LIKE '%/fox.com/%'

Sure, you can do it with a REGEX ( [\\/\\.]fox.com\\/ ), but simple SQL might be easier to remember/understand later on.