摘要: select a.id,substring_index(substring_index(a.cjfq,' ',b.help_topic_id + 1),' ',-1) cjfq from crawl_data_references a join mysql.help_topic b on b.hel 阅读全文
posted @ 2019-12-31 16:21 liqu 阅读(710) 评论(0) 推荐(0) 编辑