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???? 案例如下：

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???? A机器的mysql数据库中的database Test编码为gbk，B机器的characterset如下：

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mysql> show variables like "%character%";
+--------------------------+----------------------------+
| Variable_name            | Value                      |
+--------------------------+----------------------------+
| character_set_client     | utf8                       |
| character_set_connection | utf8                       |
| character_set_database   | utf8                       |
| character_set_filesystem | binary                     |
| character_set_results    | utf8                       |
| character_set_server     | utf8                       |
| character_set_system     | utf8                       |
| character_sets_dir       | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+

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首先，从A中导出数据：

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mysqldump -u User -p Password --default-character-set=utf8 Test > test.sql

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然后,在B机器上

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mysql -u User -p Password -e "use Test;set character_set_database=gbk;
source test.sql"