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Oracle SQL Year Retrieval Methods
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- Current Year
- SYSDATE function returns current timestamp as integer
- EXTRACT(YEAR FROM SYSDATE) retrieves current year value
- Previous Year
- ADD_MONTHS(SYSDATE, -12) calculates previous year
- WHERE clause combines SYSDATE with date math for filtering
- Advanced Features
- TRUNC function extracts start and end timestamps
- PL/SQL can check leap years using modulo function
- Custom fiscal year ranges can be defined
- Timestamp differences can be calculated in various units