MySQL 删除带有 RLIKE 表达式的查询

Question

我正在尝试运行查询以根据表达式删除重复项。我想用的表达方式是这样的。

category-23023 或 category-link-2398 或 category-link-url-58693435

基本上，我需要一个表达式来检查 - 短划线符号之前的字符串是否包含一个字母表，后跟一个短划线，最后是一个数字。这是我上次尝试的方法，但没有用。

delete
from core_url_rewrite using core_url_rewrite,
    core_url_rewrite e1
where core_url_rewrite.url_rewrite_id > e1.url_rewrite_id
    and core_url_rewrite.target_path = e1.target_path 
    and core_url_rewrite.target_path RLIKE '^[a-z]+\-[0-9]$';

Answer 1

试试这个，应该有用。

delete
from core_url_rewrite using core_url_rewrite,
    core_url_rewrite e1
where core_url_rewrite.url_rewrite_id > e1.url_rewrite_id
    and core_url_rewrite.target_path = e1.target_path 
    and core_url_rewrite.target_path RLIKE '^[a-z]+\-*.*\-[0-9]+$';

Answer 2

我似乎可以通过稍微修改 Riad 的代码来实现它。

delete
from core_url_rewrite using core_url_rewrite,
    core_url_rewrite e1
where core_url_rewrite.url_rewrite_id > e1.url_rewrite_id
    and core_url_rewrite.target_path = e1.target_path 
    and core_url_rewrite.target_path RLIKE '[a-z]+\-[0-9]+$';

MySQL 删除带有 RLIKE 表达式的查询

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