In PostgreSQL, you can use an expression to define the number of minutes (see above), multiple by 60 and add the difference is seconds. PostgreSQL - Datetime Difference in SecondsĬonsider SQL Server function to calculate the difference between 2 datetime values in seconds: Note that these PostreSQL expressions return the number of full minutes passed between the datetime values. In PostgreSQL, you can use an expression to define the number of hours (see above), multiple by 60 and add the difference is minutes. Note that DATEDIFF returned 2 minutes although there is just 1 minute and 15 seconds between the datetime values. Result: 1 PostgreSQL - Date Difference in WeeksĬonsider SQL Server function to calculate the difference between 2 datetime values in minutes: So you can use DATE_PART function to extact the number of days, but it returns the number of full days between the dates. In PostgreSQL, if you subtract one datetime value (TIMESTAMP, DATE or TIME data type) from another, you will get an INTERVAL value in the form ” ddd days hh:mi:ss”. Note that DATEDIFF returned 2 days, although there is only 1 day and 2 hours between the datetime values. Select *,round(abs(birthday :: date - fin_date :: date)/365.Consider SQL Server function to calculate the difference between 2 dates in days: Get difference between two dates in postgresql by year with an example:ĭifference between two dates in R by year can be calculated by finding difference between two dates and dividing them by 365.25 along with absolute function as shown below Select *,round(abs(birthday :: date - fin_date :: date)/(365.25/12),2) as diff_months from student_detail1 Get difference between two dates in postgresql by months with an example:ĭifference between two dates in postgresql by months can be can be calculated by finding difference between two dates and dividing them by 365.25/12 along with absolute function as shown below Get difference between two dates in postgresql by weeks with an example:ĭifference between two dates in postgresql by weeks can be calculated by finding difference between two dates and dividing them by 7 along with absolute function as shown below select *,abs(birthday :: date - fin_date :: date)/7 as diff_weeks from student_detail1 Get difference between two dates in postgresql by days with an example:ĭifference between two dates in postgresql can be calculated by finding difference between two dates along with absolute function as shown below select *,abs(birthday :: date - fin_date :: date) as diff_days from student_detail1 Get difference between two dates in Postgresql by years with an example.Get difference between two dates in Postgresql by months with an example. ![]() Get difference between two dates in Postgresql by weeks with an example. ![]() Get difference between two dates in Postgresql by days with an example.We will be using abs() function along with date difference. ![]() In Order to get difference between two dates in postgresql by days, weeks, months and years.
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