title: SQL Server : extract hashtags from column of text
body: <p>I understand that this answer here: <a href="https://stackoverflow.com/questions/42201150/how-to-extract-hashtags-from-a-string-in-t-sql">How to extract hashtags from a string in T-SQL</a>
  explains how to extract hashtags from a declared string variable, but how do I apply this operation to an entire column of strings?</p>