Oracle日期函数

Oracle的日期函数:

Oracle从8i开始就提供了大量的日期函数，这些日期函数包括对日期进行加减、转换、截取等功能。下面是Oracle提供的日期函数一览表 

Function	Use
ADD_MONTHS	Adds months to a date
LAST_DAY	Computes the last day of the month
MONTHS_BETWEEN	Determines the number of months between two dates
NEW_TIME	Translates a time to a new time zone
NEXT_DAY	Returns the date of the next specified weekday
ROUND	Rounds a date/time value to a specified element
SYSDATE	Returns the current date and time
TO_CHAR	Converts dates to strings
TO_DATE	Converts strings and numbers to dates
TRUNC	Truncates a date/time value to a specific element

更多详细内容请参考： http://www.blogjava.net/pengpenglin/archive/2008/06/30/211589.html