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  if   serverproperty('servername')   <>   @@servername  
  begin  
  declare   @server   sysname  
  set   @server   =   @@servername  
  exec   sp_dropserver   @server   =   @server  
  set   @server   =   cast(serverproperty('servername')   as   sysname)  
  exec   sp_addserver   @server   =   @server   ,   @local   =   'LOCAL'  
  end


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