Update ch02: 基础查询与排序.md

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mba1398
2021-08-22 11:28:25 +08:00
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@@ -497,7 +497,7 @@ INSERT INTO user(name, date_login) VALUES
对于数字或者日期类型可以在排序字段前添加一个负号minus来得到反向排序。`-1、-2、-3....-∞`
![图片](./img/ch02/ch02.07_null_last1.jpg)
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