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新闻正文字段作为主表的情况用以下语句：
update phome_ecms_news set titlepic =concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(newstext, 'src=', -1),'.gif',1),'"',''),'.gif') where newstext like '%.gif%' and titlepic=''; update phome_ecms_news set titlepic =concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(newstext, 'src=', -1),'.jpg',1),'"',''),'.gif') where newstext like '%.jpg%' and titlepic=''; update phome_ecms_news set titlepic =concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(newstext, 'src=', -1),'.png',1),'"',''),'.png') where newstext like '%.png%' and titlepic='';
新闻正文字段作为副表的情况用以下语句：
update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext, 'src=', -1),'.gif',1),'"',''),'.gif') where a.newstext like '%.gif%' and b.titlepic='' and a.id=b.id; update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext, 'src=', -1),'.jpg',1),'"',''),'.jpg') where a.newstext like '%.jpg%' and b.titlepic='' and a.id=b.id; update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext, 'src=', -1),'.png',1),'"',''),'.png') where a.newstext like '%.png%' and b.titlepic='' and a.id=b.id;
以上就是帝国CMS批量提取第一张图片作为标题缩略图。一朵成功的花都是由许多苦雨血泥和强烈的暴风雨的环境培养成的。更多关于帝国CMS批量提取第一张图片作为标题缩略图请关注haodaima.com其它相关文章！
