select "SYSTEM_USER".id,SYSTEM_USER.username as uname,SYSTEM_USER.password as upass,SYSTEM_USER.workshop,SYSTEM_ROLE.role_id as rid,SYSTEM_ROLE.role_name as rname,
<!--select user_info.uid,user_info.username,user_info.password,user_info.name,sys_role.id as rid,sys_role.role,sys_role.description,-->