How to Extract Year from DATE in POSTGRESQL

user_5582251 0
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Date is in 'YYYY-MM-DD' text format, now I need to extract the year part which must be in numeric. I need this conversion to be done in single step, Since I need to use in other application where i cannot create new variable.

TO_DATE(t0.AESTDTC,'YYYY-MM-DD'),'YYYY-MM-DD' with this i was able to convert to date but Now i need to Extract the year from this date in single step? can any one help me?

date datetime postgresql
6 Answers

This line solved my same problem in postgresql:

SELECT DATE_PART('year', column_name::date) from tableName;

If you want month, then simply replacing year with month solves that as well and likewise.

user_81182380

Choose one from, where :my_date is a string input parameter of yyyy-MM-dd format:

SELECT EXTRACT(YEAR FROM CAST(:my_date AS DATE));

or

SELECT DATE_PART('year', CAST(:my_date AS DATE));

Better use CAST than :: as there may be conflicts with input parameters.

user_11129630

You may try to_char(now()::date, 'yyyy')
If text, you've to cast your text to date to_char('2018-01-01'::date, 'yyyy')

See the PostgreSQL Documentation Data Type Formatting Functions

user_33019850 
SELECT TO_CHAR(CURRENT_DATE, 'YYYY')
user_103592700
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