In order to subtract seconds from datetime(timestamp) in PostgreSQL we will be using the make_interval() function and another approach by using the – operator and Interval. datatype. datatype. Here are examples of the approach. Also, we will look at how to Subtract seconds from datetime(timestamp) column in PostgreSQL table.
Subtract seconds from datetime in PostgreSQL using INTERVAL data type:
We will be Using the INTERVAL data type to subtract seconds from datetime in PostgreSQL. When we subtract seconds from datetime(timestamp) using INTERVAL datatype the output will be in datetime(timestamp) format. In below example, we have subtracted 30 seconds from datetime using Interval data type.
Example 1:
SELECT '2024-02-24 12:00:00'::timestamp - INTERVAL '30 seconds' AS new_datetime
Output:
Subtract Seconds from datetime in PostgreSQL using make_interval() function:
We will be Using the make_interval() function to subtract seconds from datetime in PostgreSQL. When we subtract seconds from datetime using the make_interval() function, the output will be in datetime(timestamp) format. In below example, we have subtracted 30 Seconds from timestamp
Example 1:
SELECT '2024-02-24 12:00:00'::timestamp - make_interval(secs => 30) as new_datetime
Output:
Subtract seconds from datetime(timestamp) column in PostgreSQL table using Interval datatype:
We will be using below student_detail1 table for our example to depict on how to subtract seconds from datetime(timestamp) column in postgresql table.
student_detail1:
We have subtracted 30 seconds from datetime column using INTERVAL datatype in postgresql and new column named new_date is being created as shown below.
select *, birthdaytime::timestamp - INTERVAL '30 SECONDS' as new_date from student_detail1
Output:
Subtract Seconds from datetime column in PostgreSQL table using make_interval() function:
We will have subtracted 30 seconds from datetime column using make_interval() function in postgresql and new column named new_date is being created as shown below.
select *,birthdaytime::timestamp - make_interval(secs => 30) as new_date from student_detail1
Output:
