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select max(to_number(goods)) from ( select case when regexp_like(replace(goods_no,‘A05‘,‘‘),‘[A-Za-z]‘) then ‘0‘ else replace(goods_no,‘A05‘,‘‘) end goods,goods_no from tb_b_goods where goods_no like ‘A05%‘ ) aa where goods!=0 ;
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原文地址：http://www.cnblogs.com/liang-ling/p/4242484.html
