sql server查询日期已超过3个月

To query dates that have exceeded 3 months in SQL Server, you can use the DATEADD function along with the GETDATE() function. Here's an example:

SELECT *
FROM your_table
WHERE your_date_column < DATEADD(month, -3, GETDATE())

In this example, your_table is the name of your table, and your_date_column is the name of the column that contains the dates you want to check. The DATEADD function subtracts 3 months from the current date (GETDATE()) and the < operator is used to compare the dates.

You can replace your_table and your_date_column with the appropriate names in your case