DATES

Rules for Dates

Sometimes you need to use a date as a search condition. Oracle 11g displays dates in the default format DD-MON-YY, with MON being the standard three-letter abbreviation for the month. Because the Pubdate field contains letters and hyphens, it’s not considered a numeric value when Oracle 11g performs searches. Therefore, a date value must be enclosed in single quotation marks

SELECT * 
FROM books
WHERE pubdate = '21-JAN-05'

SELECT order#, orderdate
FROM orders
WHERE orderdate < '01-APR-09'

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