The expense is using the DateAdd function not only in the SELECT, but also in the WHERE; Or using the Sub Query which initially returns more data than I need, but then can be filtered without using the DateAdd function again on the database.The expense is using the DateAdd function not o
阅读背景：
SQL效率 - 使用dateAdd函数查询两次;或者SubQuery和DateAdd函数一次;在BETWEEN的日期
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