there is another module named <str> in this database

  Explanation:  The module name you tried to define  or  on  which
  you  attempted  to  perform an operation, already exists in this
  database.  Note that stored and  non-stored  modules  share  the
  same name space.

  User Action:  Use another module  name.   If  you  have  already
  invoked  a non-stored module, then disconnect the session before
  performing any operation on the stored  module.   Alternatively,
  if you have already invoked a stored module, then disconnect the
  session  before  performing  any  operation  on  the  non-stored
  module.