我们有一个MySQL InnoDB表,文本字段为COLLATE utf8mb4_unicode_ci
。我需要搜索包含任何表情符号字符的行。我搜索了很多SO问题,但是人们似乎有一个他们正在搜索的表情符号列表。我实际上正在寻找能找到任何表情符号的解决方案。
Here are some个帖子没有帮助。
This one似乎最接近于向我提供我正在寻找的内容,但OP并未实际发布他的搜索代码。
谢谢!
答案 0 :(得分:1)
我曾经遇到过这样的情况,即数据库从一台服务器迁移到另一台服务器会导致表情符号消失。因此,我不得不在原始表中找到所有包含utf8(表情符号)高字符的行。
此查询按预期工作:
SELECT field FROM `table` WHERE HEX(field) RLIKE "^(..)*F.";
在执行任何操作之前,请检查您是否在数据库,表和连接上使用utf8mb4:
SHOW VARIABLES WHERE Variable_name LIKE 'character\_set\_%' OR Variable_name LIKE 'collation%';
+--------------------------+--------------------+
| Variable_name | Value |
+--------------------------+--------------------+
| character_set_client | utf8mb4 |
| character_set_connection | utf8mb4 |
| character_set_database | utf8mb4 |
| character_set_filesystem | binary |
| character_set_results | utf8mb4 |
| character_set_server | utf8mb4 |
| character_set_system | utf8 |
| collation_connection | utf8mb4_unicode_ci |
| collation_database | utf8mb4_unicode_ci |
| collation_server | utf8mb4_unicode_ci |
+--------------------------+--------------------+
答案 1 :(得分:0)
在我看来,简单的方法是创建一个包含所有表情符号代码的表,然后通过like
条件连接到您的表。
我在这里分享how to insert emotis on mysql:
create table emojis (
e varchar(100) COLLATE utf8mb4_unicode_ci
);
insert into emojis values
( _utf8mb4 0xF09F9881 COLLATE utf8mb4_unicode_ci),
( _utf8mb4 '' );
最终查询应如下所示:
select distinct yt.id
from your_table yt
inner join emojis e
on yt.some_column like '%' + e.e + '%'
答案 2 :(得分:0)
这项工作可能吗?
直接在mysql中使用mysql UDF存储库中的lib_mysqludf_preg库获取PCRE正则表达式
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