SQL - two months from todays date in Oracle

Question

I have a column that stores the last modified date. I want to check in a SQL query if its value is more than 2 months from the current date.

I know I need to use SYS

Answer 1

Here is a query WHERE clause that will get you the previous 13 months based on the current date. For example, if today's date is 3/11/2011, the query would return 2/1/2011 through EOD 2/28/2011.

SELECT * FROM [my-table] WHERE [date-field] BETWEEN TRUNC (ADD_MONTHS (SYSDATE, -13), 'MM') AND TRUNC (LAST_DAY (ADD_MONTHS (SYSDATE, -1))+1)