WordPress批量替换数据库中内容SQL语句

老牛  2017-05-13 20:55  阅读 284 views 次 评论 2 条

老牛的一个网站数据量较大,接近八万条数据,需要替换所有内容中的部分内容
最快方法当然是在phpmyadmin使用sql语句来完成,替换前务必备份数据库,以免出现失误

替换语句

UPDATE wp_posts SET post_content = REPLACE( post_content, 'old content A', 'new content B' )

解释:更新数据库中wp_posts表post_content字段的内容"old content A"为"new content B"(不包含双引号"")

快捷方法:安装WordPress插件Find and Replacer 然后使用插件来,这个方便,但是我更喜欢直接搞SQL
插件使用方法截图如下:

WordPress常用SQL语句

1. 删除所有未使用的标签

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DELETE a,b,c
FROM wp_terms AS a
LEFT JOIN wp_term_taxonomy AS c ON a.term_id = c.term_id
LEFT JOIN wp_term_relationships AS b ON b.term_taxonomy_id = c.term_taxonomy_id
WHERE c.taxonomy = 'post_tag' AND c.count = 0

2.删除所有文章修订版本(Revisions)以及它们的Meta数据

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DELETE a,b,c
FROM wp_posts a
LEFT JOIN wp_term_relationships b ON (a.ID = b.object_id)
LEFT JOIN wp_postmeta c ON (a.ID = c.post_id)
WHERE a.post_type = 'revision'

3. 更改WordPress地址和首页地址

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UPDATE wp_options
SET option_value = replace(option_value, 'http://www.旧网址.com', 'http://www.新网址.com')
WHERE option_name = 'home' OR option_name = 'siteurl'

4. 更改文章的GUID

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UPDATE wp_posts
SET guid = REPLACE (guid, 'http://www.旧网址.com', 'http://www.新网址.com')

5. 更改正文中的链接地址

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UPDATE wp_posts
SET post_content = REPLACE (post_content, 'http://www.旧网址.com', 'http://www.新网址.com')

6. 更新文章的Meta值

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UPDATE wp_postmeta
SET meta_value = REPLACE (meta_value, 'http://www.旧网址.com', 'http://www.新网址.com')

7. 重设Admin密码

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UPDATE wp_users
SET user_pass = MD5( 'new_password' )
WHERE user_login = 'admin'

8. 重设admin的用户名

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UPDATE wp_users
SET user_login = 'newname'
WHERE user_login = 'admin'

9. 将作者a的文章全部转移到作者b

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UPDATE wp_posts
SET post_author = 'b'
WHERE post_author = 'a'

10. 删除文章的meta标签

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DELETE FROM wp_postmeta
WHERE meta_key = 'your-meta-key'

11. 导出所有评论中的邮件地址

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SELECT DISTINCT comment_author_email
FROM wp_comments

12. 删除所有的Pingback

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DELETE FROM wp_comments
WHERE comment_type = 'pingback'

13. 删除所有的垃圾评论

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DELETE FROM wp_comments
WHERE comment_approved = 'spam'

14. 禁用所有激活的插件

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UPDATE wp_options
SET option_value = ''
WHERE option_name = 'active_plugins'

15. 罗列所有未使用的Meta标签

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SELECT *
FROM wp_postmeta pm
LEFT JOIN wp_posts wp ON wp.ID = pm.post_id
WHERE  wp.ID IS NULL

16. 关闭旧文章的留言

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UPDATE wp_posts
SET comment_status = 'closed'
WHERE post_date < '2009-01-01' AND post_status = 'publish'

17. 更新留言者的网址

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UPDATE wp_comments
SET comment_author_url = REPLACE( comment_author_url, 'http://旧网址.com', 'http://新网址.com' )

18. 更新正文内所有的’target=”_blank”‘为’rel=”nofollow”‘

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UPDATE wp_posts
SET post_content = REPLACE (post_content, 'target="_blank',  'rel="nofollow')

19.删除未使用的Meta标签

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DELETE pm
FROM wp_postmeta pm
LEFT JOIN wp_posts wp ON wp.ID = pm.post_id
WHERE wp.ID IS NULL

20.更改文章自定义字段的名称

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UPDATE `wp_postmeta` SET `meta_key` = '新名称' WHERE `meta_key` = '旧名称';
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  1. 小z博客
    小z博客 @回复

    您好,希望博主将友链修改为:https://www.xiaoz.me/ ,谢谢。