使用sql从xml提取值

Question

I need to fetch the data from the xml that is stored in the database by using the sql query. The xml is like the following

 <outerNode>
   <innerNode>
      <element1>Workflow1</element1>
      <element2>619</element2>
      <element3>aioperator1</element3>
      <element4>0</element4>
      <element5>623</element5>
   </innerNode>
   <innerNode>
      <element1>Workflow2</element1>
      <element2>620</element2>
      <element3>amloperator1</element3>
      <element4>1</element4>
     <element5>624</element5>
   </innerNode>
</outerNode>

Now, what I need to do is to get only those elements which are "aioperator1" using the MySql query. Any help will be appreciated.

Answer 1

May be something like this

SET @xml = '
<outerNode>
   <innerNode>
      <element1>Workflow1</element1>
      <element2>619</element2>
      <element3>aioperator1</element3>
      <element4>0</element4>
      <element5>623</element5>
   </innerNode>
   <innerNode>
      <element1>Workflow2</element1>
      <element2>620</element2>
      <element3>amloperator1</element3>
      <element4>1</element4>
     <element5>624</element5>
   </innerNode>
</outerNode>';

SELECT ExtractValue(@xml, 'outerNode/innerNode/element3') value;

FIDDLE DEMO