Oracle DATEDIFF Alternative: Calculate Date Differences

In Oracle, there is no direct DATEDIFF function to calculate the difference between dates. However, you can use other functions to achieve similar functionality.

One common method is to use the MONTHS_BETWEEN function combined with the TRUNC function to calculate the difference in months between two dates. For example, the following example calculates the difference in months between two dates:

SELECT TRUNC(MONTHS_BETWEEN(date2, date1)) AS months_diff
FROM your_table;

Another method is to use the function NUMTODSINTERVAL to convert the difference between dates into a specified interval unit (such as days, hours, minutes, etc.), and then use the function EXTRACT to extract the desired unit from the interval. The following example calculates the difference in days between two dates:

SELECT EXTRACT(DAY FROM (date2 - date1)) AS days_diff
FROM your_table;

Please make sure to replace date1 and date2 with actual date columns or values in the example above, and replace your_table with the actual table name.

I hope this helps you! Feel free to ask if you have any other questions.