问题重现:
MySql 数据库中,一给列的内容中包括 “.wmv” 需要将 “.” 后的wmv格式 换为“flv”
解决办法
update video_info set file_path=substring(file_path,1,length(file_path)-3);
先执行以上SQL进行删除;
update video_info set file_path = concat(file_path,'flv');
再执行这条语句把flv添加到后面。
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