問題描述
我有一個帶有 utf8 通用 ci 排序規則的 MySQL 表.在表格中，我可以看到兩個條目:
I have a MySQL table with utf8 general ci collation. In the table, I can see two entries:
糟糕
廢話
我使用的查詢如下所示:
I am using a query that looks like this:
SELECT * FROM `words` WHERE `word` = 'abád'
查詢結果給出了兩個詞:
The query result gives both words:
糟糕
廢話
有沒有辦法表明我只希望 MySQL 找到帶重音的單詞?我希望查詢只返回
Is there a way to indicate that I only want MySQL to find the accented word? I want the query to only return
廢話
我也試過這個查詢:
SELECT * FROM `words` WHERE BINARY `word` = 'abád'
它沒有給我任何結果.謝謝你的幫助.
It gives me no results. Thank you for the help.
推薦答案
如果您對該字段的搜索總是對重音敏感，則將該字段的排序規則聲明為 utf8_bin(這將比較 utf8-encoded 字節)或使用特定于語言的排序規則來區分重音字符和非重音字符.
If your searches on that field are always going to be accent-sensitive, then declare the collation of the field as utf8_bin (that'll compare for equality the utf8-encoded bytes) or use a language specific collation that distinguish between the accented and un-accented characters.
col_name varchar(10) collate utf8_bin
如果搜索通常不區分重音，但您想為此搜索設置例外，請嘗試；
If searches are normally accent-insensitive, but you want to make an exception for this search, try;
WHERE col_name = 'abád' collate utf8_bin
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