In Oracle SQL, you can compare dates using comparison operators like =, !=, <, >, <=, and >=. When comparing dates, ensure both dates are in the same format. If necessary, use the TO_DATE() function to convert strings to date format. For example:
SELECT * FROM orders
WHERE order_date >= TO_DATE(‘2025-01-01’, ‘YYYY-MM-DD’);
You can also use SYSDATE to compare with the current date and time:
SELECT * FROM employees
WHERE hire_date < SYSDATE;
For specific date parts, you can extract and compare parts like day, month, or year using the EXTRACT() function.