To extract seconds from datetime i.e. timestamp in PostgreSQL, you can use the DATE_PART() function with the ‘seconds’ unit.
Syntax for DATE_PART() Function in PostgreSQL:
DATE_PART(unit, source)
unit: Specifies the part of the date or timestamp to extract (e.g., ‘year’, ‘month’, ‘day’, ‘hour’, ‘minute’, ‘second’, etc.).
source: The date or timestamp from which to extract the specified part.
In Our case. The values of the unit must be “seconds”.
Extract seconds from datetime(timestamp) in postgresql Simple Example:
In order to Extract seconds from datetime (timestamp) in postgresql we will be using DATE_PART() function.
In the below Example we will be passing seconds as “unit” argument and datetime as “source” argument in order to extract seconds from Date or datetime
SELECT DATE_PART('seconds', '2024-02-24 15:30:45.123456'::timestamp) AS seconds_part;
Output:
Extract seconds from Current date in postgresql :
This query uses the CURRENT_TIMESTAMP function to get the current datetime and then extracts the econds using DATE_PART()
SELECT CURRENT_TIMESTAMP AS current_datetime, DATE_PART('seconds', CURRENT_TIMESTAMP) AS seconds;
Output:
Extract seconds from Date in postgresql table:
We will be using Below Student_detail table for our example to depict on how to extract seconds from date in postgresql
Student_detail:
In the above table we will be using DATE_PART() Function, which will take “seconds” and column named “birthdaytime” as argument. Which will extract seconds from “birthdaytime” column and store in the new column of postgresql table as shown below
select *, DATE_PART('seconds', birthdaytime::timestamp) AS seconds from Student_detail
so the resultant table will have seconds column
Extract Seconds from Date in postgresql table using Extract():
We will be using Below Student_detail table for our example to depict on how to extract Seconds from date in postgresql
Student_detail:
In the above table we will be using EXTRACT() Function, which will take “Seconds” and column named “birthdaytime” as argument. Which will extract Seconds from “birthdaytime” column and store in the new column of postgresql table as shown below
Select *, extract(SECONDS FROM birthdaytime) as seconds from student_detail
So the resultant table will have seconds column
