我有整理问题.我想设置整理以支持日语.例如,当table.firstname具有“あ”时,带有“ぁ”的查询应返回记录.提前致谢.

解决方法:

这就像“大写”和“小写”,对吗？

mysql> SELECT 'あ' = 'ぁ' COLLATE utf8_general_ci;
+---------------------------------------+
| 'あ' = 'ぁ' COLLATE utf8_general_ci   |
+---------------------------------------+
|                                     0 |
+---------------------------------------+

mysql> SELECT 'あ' = 'ぁ' COLLATE utf8_unicode_ci;
+---------------------------------------+
| 'あ' = 'ぁ' COLLATE utf8_unicode_ci   |
+---------------------------------------+
|                                     1 |
+---------------------------------------+

mysql> SELECT 'あ' = 'ぁ' COLLATE utf8_unicode_520_ci;
+-------------------------------------------+
| 'あ' = 'ぁ' COLLATE utf8_unicode_520_ci   |
+-------------------------------------------+
|                                         1 |
+-------------------------------------------+

我建议将列更改为COLLATION utf8_unicode_520_ci(或utf8mb4_unicode_520_ci).

如果您希望包含中文,请务必使用utf8mb4. (也许这个建议也适用于汉字.)