Extract year from date in PostgreSQL

To extract the year from a date in PostgreSQL, you can use the DATE_PART() function with the ‘year’ 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 “year”

 

 

Extract Year from Date in postgresql Simple Example:

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

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


SELECT DATE_PART('year', '2024-02-24'::timestamp) AS year_part;

Output:

Extract year from date in PostgreSQL 1

 

 

Extract Year from Current date in postgresql :

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


SELECT CURRENT_DATE AS current_date, DATE_PART('year', CURRENT_DATE) AS year_part;

Output:

Extract year from date in PostgreSQL 2

 

 

Extract Year part from Date in postgresql table:

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

Student_detail:

Extract year from date in PostgreSQL 3

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


select *, DATE_PART('year', birthdaytime::timestamp) AS year_part from Student_detail

so the resultant table will have year_part column

Extract year from date in PostgreSQL 4

 

 

Extract Year part from Datetime in postgresql table using Extract():

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

Student_detail:

Extract year from date in PostgreSQL 5

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


Select *, extract(YEAR FROM birthdaytime) as year_part from student_detail

So the resultant table will have year_part column

Extract year from date in PostgreSQL 6

 

 

Author

  • Sridhar Venkatachalam

    With close to 10 years on Experience in data science and machine learning Have extensively worked on programming languages like R, Python (Pandas), SAS, Pyspark.

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