用于获取过去 3 个月数据的 SQL 查询
如何获取今天的日期并将其转换为01/mm/yyyy 格式并从表中获取3 个月前交货月份的数据?表中已包含交货月份 01/mm/yyyy.
How can you get today's date and convert it to 01/mm /yyyy format and get data from the table with delivery month 3 months ago? Table already contains delivery month as 01/mm/yyyy.
推荐答案
SELECT *
FROM TABLE_NAME
WHERE Date_Column >= DATEADD(MONTH, -3, GETDATE())
Mureinik 建议的方法将返回相同的结果，但通过这种方式，您的查询可以从 Date_Column 上的任何索引中受益.
Mureinik's suggested method will return the same results, but doing it this way your query can benefit from any indexes on Date_Column.
或者您可以检查过去 90 天.
or you can check against last 90 days.
SELECT *
FROM TABLE_NAME
WHERE Date_Column >= DATEADD(DAY, -90, GETDATE())
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