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帝国cms常用的SQL语句

2023-05-07 14:03未知服务器之家 帝国CMS

1.复制tags字段内容到keyboard,当keyboard为空的时候: update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.keyboard=a.infotags where a.id=b.id and b.keyboard=\\; 2.添加tags字段内容到keyboard: update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.keyboard

帝国cms常用的SQL语句

1.复制tags字段内容到keyboard,当keyboard为空的时候:

update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.keyboard=a.infotags where a.id=b.id and b.keyboard=\’\’;

2.添加tags字段内容到keyboard:

update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.keyboard=concat(b.keyboard,\’,\’,a.infotags) where a.id=b.id and b.keyboard<>\’\’ and a.infotags<>\’\’;

3.如果副表中keyid(相关链接)字段为空,说明keyboard设置不合理,干脆清空,为自动分词扫清障碍

update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.keyboard=\’\’ where a.id=b.id and a.keyid=\’\’

4.newstext在副表,提取第一张图片为标题图片。当标题图片为空的时候。

update [!db.pre!]ecms_news_data_1 a, [!db.pre!]ecms_news b set b.titlepic=concat(replace(SUBSTRING_INDEX(SUBSTRING_INDEX(a.newstext, \’.jpg\’, 1),\’src=\’,-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, \’.gif\’, 1),\’src=\’,-1),\’\”\’,\’\’),\’.gif\’) where a.newstext like \’%.gif%\’ and b.titlepic=\’\’ and a.id=b.id;

文章转自:黎青松SEO博客

来源地址:http://www.alitaohuo.com/CMSjiaocheng/diguojiaocheng/1685.html

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