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mysql 非严格模式下对字段长度不做校验，例：
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显示长度为30
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![[Pasted image 20250429144840.png]]
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实际长度为36：
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![[Pasted image 20250429144900.png]]
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做ETL时，对端表的长度不能设置的与非严格模式下的mysql 相同，不然会出现长度问题
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![[Pasted image 20250429145007.png]]
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