UPDATE [amb].[Outputs]
   SET
      [XmlData] =
'<?xml version="1.0" encoding="utf-16"?>
<DashboardXml xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Xml>' + REPLACE(REPLACE([XmlData],'<','&lt;'), '>', '&gt;') +'</Xml>
  <AlternativeColumns />
  <Events />
  <Filters />
  <ModelSources />
</DashboardXml>'
 WHERE TYPE = 1 AND XmlData NOT LIKE '%<DashboardXml xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">%'