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在使用WordPress的过程中，我们少不了要对数据库进行修改操作,比如,更换域名、修改附件目录、批量修改文章内容等等,这个时候,使用SQL查询语句可以大大简化我们的工作量.
下面分享一些wordpress常用的SQL查询语句
注:1.在每次使用SQL查询语句前,请务必导出数据库备份,2.下面的SQL查询语句,数据库都是使用WordPress默认的 wp_ 表头,请根据自己的实际修改.
1. 删除所有未使用的标签
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
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
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
| 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
| 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
| 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
UPDATE wp_users SET user_pass = MD5( 'new_password' )
WHERE user_login = 'admin' |
8. 重设admin的用户名
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
UPDATE wp_posts SET post_author = 'b'
WHERE post_author = 'a' |
10. 删除文章的meta标签
| DELETE FROM wp_postmeta WHERE meta_key = 'your-meta-key' |
11. 导出所有评论中的邮件地址
| SELECT DISTINCT comment_author_email FROM wp_comments |
12. 删除所有的Pingback
| DELETE FROM wp_comments WHERE comment_type = 'pingback' |
13. 删除所有的垃圾评论
| DELETE FROM wp_comments WHERE comment_approved = 'spam' |
14. 禁用所有激活的插件
UPDATE wp_options SET option_value = ''
WHERE option_name = 'active_plugins' |
15. 罗列所有未使用的Meta标签
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
UPDATE wp_posts SET comment_status = 'closed'
WHERE post_date <</span> '2009-01-01' AND post_status = 'publish' |
17. 更新留言者的网址
| 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“‘
| UPDATE wp_posts SET post_content = REPLACE (post_content, 'target="_blank', 'rel="nofollow') |
19.删除未使用的Meta标签
DELETE pm FROM wp_postmeta pm
LEFT JOIN wp_posts wp ON wp.ID = pm.post_id WHERE wp.ID IS NULL |
延伸阅读:
·WordPress过滤链接、过滤SQL语句的实现方法
·Wordpress文章ID的修改SQL语句
·WordPress某年某月文章的查询SQL语句
·WordPress实现输出当前页面的SQL语句
·WordPress后台常用MySQL操作命令
·Wordpress修改某篇文章ID的SQL语句
·wordpress使用sql语句查询示例
·wordpress安全更改MYSQL数据库的表前缀
·Wordpress 优化MYSQL数据库方法
·WordPress SQL语句总结
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