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如何update某个字段为null? #928

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@renwuqiang

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@renwuqiang

我想将数据库某个字段更新为null。类似这样:
Student student = new Student();
student.setId(1);
student.setAge(null);
studentMapper.updateByPrimaryKeySelective(student);
我只想更新age为null,其余字段不变。能支持吗?

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