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select * from AAA where to_char(a,‘yyyymmdd‘) = to_char(sysdate,‘yyyymmdd‘);select * from AAA where to_char(a,‘yyyymmdd‘) = to_char(sysdate-1,‘yyyymmdd‘);select * from AAA where trunc(a) = trunc(sysdate);select * from AAA where trunc(a) = trunc(sysdate)-1;标签：
原文地址：http://www.cnblogs.com/sun-rain/p/5176983.html
