조건식(CASE 등등)
String query = "select nullif(m.username, '관리자') as username " + "from Member m ";select case when m.age <= 10 then '학생요금' when m.age >= 60 then '경로요금' else '일반요금' end from Member mselect case t.name when '팀A' then '인센티브110%' when '팀B' then '인센티브120%' else '인센티브105%' end from Team t



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