Illegal mix of collations for operation ‘concat‘

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2022-04-29

问题：Mysql执行CONCAT函数报错（Illegal mix of collations for operation 'concat'）

原因：CONCAT中个别字段字符集不统一

解决：找到是哪几个字段导致的，然后是使用字段类型转换函数convert(xxx字段 USING utf8)

OK顺利执行

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