Extract Decade from date in PostgreSQL

To extract the decade from a date in PostgreSQL, you can use the DATE_PART() function with the ‘decade’ unit.

Syntax for DATE_PART() Function in PostgreSQL:

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 “decade”

Extract Decade from Date in postgresql Simple Example:

In order to Extract decade from date in postgresql we will be using  DATE_PART() function.

In the below Example we will be passing decade as “unit” argument and date as “source” argument in order to extract decade from Date or datetime

 

SELECT DATE_PART('decade', '2024-02-24'::timestamp) AS decade_part;

Output:

Extract Decade from Current date in postgresql :

This query uses the CURRENT_DATE function to get the current date and then extracts the decade from current datetime using DATE_PART()

 

SELECT CURRENT_DATE AS current_date, DATE_PART('decade', CURRENT_DATE) AS decade_part;

Output:

Extract Decade part from Date in postgresql table:

We will be using  Below Student_detail table for our example to depict on how to extract decade part from datetime in postgresql

Student_detail:

In the above table we will be using DATE_PART() Function, which will take “decade”  and column named “birthdaytime” as argument. Which will extract decade part from “birthdaytime” column and store in the new column of postgresql table as shown below

 

select *, DATE_PART('decade', birthdaytime::timestamp) AS decade_part from Student_detail

so the resultant table will have decade_part column

Extract Decade from Datetime in postgresql table using Extract():

We will be using Below Student_detail table for our example to depict on how to extract Decade from datetime in postgresql

Student_detail:

In the above table we will be using  EXTRACT() Function, which will take “Decade” and column named “birthdaytime” as argument. Which will extract Decade from “birthdaytime” column and store in the new column of postgresql table as shown below

 

Select *, extract(DECADE FROM birthdaytime) as decade_part from student_detail

So the resultant table will have decade_part column