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mysql5.6.21为何只能查询出character_set_results

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Release： 2016-06-06 09:44:02
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mysql5.6.21 命令查询show variables like 'character_%s' 只查询出来一个结果：只包含
character_set_results,我之前利用这条命令查找出来的包括character_set_server，character_set_client，character_set_connection，character_set_results，character_set_database，character_set_system。不知道设置了什么东西，然后在查询就只能查出一个了。

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