How do I get the current year using SQL on Oracle?

Spotlight on alternate strategies

Starting and ending: the year's boundary

To obtain the first day of the current year, you use this:

-- New Year Celebration SQL Style!
SELECT TRUNC(SYSDATE, 'YEAR') FROM dual;
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To find the last second of the current year:

-- Because we all love countdowns to the new year!
SELECT ADD_MONTHS(TRUNC(SYSDATE, 'YEAR'), 12) - 1/24/60/60 FROM dual;
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Filtering your data: current year edition

When it's time to filter data based on the current year:

-- When the SQL knows when you are working
SELECT *
FROM your_table
WHERE date_column BETWEEN TRUNC(SYSDATE, 'YEAR') AND ADD_MONTHS(TRUNC(SYSDATE, 'YEAR'), 12) - 1/24/60/60;
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Dealing with dynamic year comparisons

For dynamic SQL comparison that changes with the year:

-- SQL always stays current!
SELECT *
FROM your_table
WHERE EXTRACT(YEAR FROM date_column) = EXTRACT(YEAR FROM SYSDATE);
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Extra insights: master the dates

More than years: Exploring date components

You might also need other components of the date for complex filterings, like the month or day:

-- February is too cold, let's get to March!
SELECT EXTRACT(MONTH FROM SYSDATE) FROM dual;
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The power of dual table

Oracle's magic table dual comes to aid for these operations:

-- My instant magic mirror for SQL
SELECT SYSDATE FROM dual;
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Community wisdom

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