Question

现在因为下面的现象我觉得我完全不懂字符集。起初我认为只有utf8mb4支持表情符号字符，例如。见下文：

As of MySQL 5.5.3, the utf8mb4 character set uses a maximum of four bytes per character supports supplemental characters

但不小心我发现了这种现象，见下文：

mysql> show variables like 'character%';
+--------------------------+---------------------------------------+
| Variable_name            | Value                                 |
+--------------------------+---------------------------------------+
| character_set_client     | latin1                                |
| character_set_connection | latin1                                |
| character_set_database   | latin1                                |
| character_set_filesystem | binary                                |
| character_set_results    | latin1                                |
| character_set_server     | utf8mb4                               |
| character_set_system     | utf8                                  |
| character_sets_dir       | /opt/mysql/server-5.6/share/charsets/ |
+--------------------------+---------------------------------------+
mysql> show create table t4\G
*************************** 1. row ***************************
   Table: t4
Create Table: CREATE TABLE `t4` (
  `data` varchar(100) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
mysql> insert into t4 select '\U+1F600';
mysql> select * from t4;
+------+
| data |
+------+
|      |
+------+

现在我非常困惑，似乎latin1也可以支持表情符号。我知道它一定是幻觉，但我不知道如何清除它？

Answer 1

您无法将其他iso-8859-1 characters存储到latin1字段中而不将其转换为例如BASE64

它可能会起作用，但稍后会在某些时候失败。特别是像表情符号这样的多字节字符。

mysql latin1也支持表情符号吗？

1 个答案: