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				            String sql = "select dd.photo,GROUP_CONCAT(DISTINCT p.name) as patientName,pd.device_sn,dd.brands,dd.category_code,dd.model,pd.device_name,date_format(pd.czrq,'%Y-%m-%d %H:%i:%S' ) deviceTime,wd.manufacturer,p.mobile,p.address,p.idcard,wd.device_type  " + 
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