To extract the century from a date in PostgreSQL, you can use the DATE_PART() function with the ‘century’ 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 “century”
Extract Century from Date in postgresql Simple Example:
In order to Extract century from date in postgresql we will be using DATE_PART() function.
In the below Example we will be passing century as “unit” argument and date as “source” argument in order to extract century from Date or datetime
SELECT DATE_PART('century', '2024-02-24'::timestamp) AS century_part;
Output:
Extract Century from Current date in postgresql :
This query uses the CURRENT_DATE function to get the current date and then extracts the century from current date using DATE_PART()
SELECT CURRENT_DATE AS current_date, DATE_PART('century', CURRENT_DATE) AS century_part;
Output:
Extract Century part from Date in postgresql table:
We will be using Below Student_detail table for our example to depict on how to extract century part from datetime(timestamp) in postgresql
Student_detail:
In the above table we will be using DATE_PART() Function, which will take “century” and column named “birthdaytime” as argument. Which will extract century part from “birthdaytime” column and store in the new column of postgresql table as shown below
select *, DATE_PART('century', birthdaytime::timestamp) AS century_part from Student_detail
so the resultant table will have century_part column
Extract Century from Date in postgresql table using Extract():
We will be using Below Student_detail table for our example to depict on how to extract Century from datetime in postgresql
Student_detail:
In the above table we will be using EXTRACT() Function, which will take “Century” and column named “birthdaytime” as argument. Which will extract Century from “birthdaytime” column and store in the new column of postgresql table as shown below
Select *, extract(CENTURY FROM birthdaytime) as century_part from student_detail
So the resultant table will have century_part column
