Finds invalid characters in any Sitecore field

invalid-chars-in-sitecore-fields.sql

SELECT * FROM (
    SELECT ItemId, FieldId, Value FROM [SharedFields] (nolock)
    UNION
    SELECT ItemId, FieldId, Value FROM [UnversionedFields] (nolock)
    UNION
    SELECT ItemId, FieldId, Value FROM [VersionedFields] (nolock)
  ) A
WHERE Value Like '%' + CHAR(0x01) + '%'
OR Value Like '%' + CHAR(0x08) + '%'
OR Value Like '%' + CHAR(0x10) + '%'
OR Value Like '%' + CHAR(0x12) + '%'