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select to_date('20091230','yyyymmdd')+7 from dual;
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SQL code:
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birthday - trunc(sysdate,'dd')<=7
Óиö±¿°ì·¨¾ÍÊÇ,to_date('20091230','yyyymmdd')+7ºó
to_date(to_date('20091230','yyyymmdd')+7,'mm')ºÍÉúÈÕÔ±ȽÏ
and
to_date(to_date('20091230','yyyymmdd')+7,'dd')ºÍÉúÈÕÈձȽÏ
trunc(sr) - trunc(sysdate) between 0 and 7
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select *
from table
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