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mysql关于自增长增长问题
2022-07-06 03:40:00 【两片空白】
用auto_increment约束的字段,不给值时默认从1开始自增。
可以在创建表时设置初始值或者在插入时设置初始值。
自增的问题:
当因为唯一键重复插入错误时,自增字段也会进行自增。
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