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select to_date('20091230','yyyymmdd')+7 from dual;
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birthday - trunc(sysdate,'dd')<=7



Óиö±¿°ì·¨¾ÍÊÇ,to_date('20091230','yyyymmdd')+7ºó
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trunc(sr) - trunc(sysdate) between 0 and 7

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trunc(sr) - trunc(sysdate) between 0 and 7

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