Datetime Formatting Parameters for ROUND(x[, unit]) : ROUND « Date Timestamp Functions

Datetime Formatting Parameters for ROUND(x[, unit]) : ROUND « Date Timestamp Functions « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Date Timestamp Functions » ROUND

13. 15. 2. Datetime Formatting Parameters for ROUND(x[, unit])

Aspect	Parameter Description	Example
Century	CC	Two-digit century.
21	Century	SCC
Two-digit century with a negative sign (C) for B.C.	-10	Quarter
Q	One-digit quarter of the year.	1
Year	YYYY	All four digits of the year.
2006	Year	IYYY
All four digits of the ISO year.	2006	Year
RRRR	All four digits of the rounded year, which depends on the current year.	2006
Year	SYYYY	All four digits of the year with a negative sign (C) for B.C.
C1001	Year	Y,YYY
All four digits of the year with a comma.	2,006	Year
YYY	Last three digits of the year.	006
Year	IYY	Last three digits of the ISO year.
006	Year	YY
Last two digits of the year.	06	Year
IY	Last two digits of the ISO year. 06	Year
RR	Last two digits of the rounded year, which depends on the current year.	06
Year	Y	Last digit of the year.
6	Year	I
Last digit of the ISO year.	6	Year
YEAR	Name of the year in uppercase.	TWO THOUSAND-SIX
Year	Year	Name of the year with the first letter in uppercase.
Two Thousand-Six	Month	MM
Two-digit month of the year.	01	Month
MONTH	Full name of the month in uppercase, right-padded with spaces to a total length of nine characters.	JANUARY
Month	Month	Full name of the month with first letter in uppercase, right-padded with spaces to a total length of nine characters.
January	Month	MON
First three letters of the name of the month in uppercase.	JAN	Month
Mon	First three letters of the name of the month with the first letter in uppercase.	Jan
Month	RM	Roman numeral month.
The Roman numeral month for the fourth month (April) is IV.	Week	WW
Two-digit week of the year.	02	Week
IW	Two-digit ISO week of the year.	02
Week	W	One-digit week of the month.
2	Day	DDD
Three-digit day of the year.	103	Day
DD	Two-digit day of the month.	31
Day	D	One-digit day of the week.
5	Day	DAY
Full name of the day in uppercase.	SATURDAY	Day
Day	Full name of the day with the first letter in uppercase.	Saturday
Day	DY	First three letters of the name of the day in uppercase.
SAT	Day	Dy
First three letters of the name of the day with the first letter in uppercase.	Sat	Day
J	Julian day-the number of days that have passed since January 1, 4713 B.C.	2439892
Hour	HH24	Two-digit hour in 24-hour format.
23	Hour	HH
Two-digit hour in 12-hour format.	11	Minute
MI	Two-digit minute.	57
Second	SS	Two-digit second.
45	Second	FF[1..9]
Fractional seconds with an optional number of digits to the right of the decimal point. Only applies timestamps,When dealing with 0.123456789 seconds, FF3 would round to 0.123.	Second	SSSSS
Number of seconds past 12 a.m.	46748	Second
MS	Millisecond (millionths of a second).	100
Second	CS	Centisecond (hundredths of a second).
10	Separators	-/,.;: "text"
Characters that allow you to separate the aspects of a date and time. You can supply freeform text in quotes as a separator.	When dealing with the date December 13, 1969, DD-MM-YYYY would produce 12-13-1969 and DD/MM/YYYY would produce 12/13/1969	Suffixes
AM or PM	AM or PM as appropriate.	AM
Suffixes	A.M. or P.M.	A.M. or P.M. as appropriate.
P.M.	Suffixes	AD or BC
AD or BC as appropriate.	AD	Suffixes
A.D. or B.C.	A.D. or B.C. as appropriate.	B.C.
Suffixes	TH	Suffix to a number. You can make the suffix uppercase by specifying the numeric format in uppercase and vice versa for lowercase.When dealing with a day number of 28, ddTH would produce 28th and DDTH would produce 28TH
Suffixes	SP	Number is spelled out.When dealing with a day number of 28, DDSP would produce TWENTY-EIGHT and ddSP would produce twenty-eight
Suffixes	SPTH	Combination of TH and SP.When dealing with a day number of 28, DDSPTH would produce TWENTY-EIGHTH and ddSPTH would produce twenty-eighth
Era	EE	Full era name for Japanese Imperial, ROC Official, and Thai Buddha calendars.
No example	Era	E
Abbreviated era name.	No example	Time zones
TZH	Time zone hour.	12
Time zones	TZM	Time zone minute.
30	Time zones	TZR
Time zone region.	PST	Time zones
TZD	Time zone with daylight savings information.	No example

Quote from:

Oracle Database 10g SQL (Osborne ORACLE Press Series) (Paperback)

# Paperback: 608 pages

# Publisher: McGraw-Hill Osborne Media; 1st edition (February 20, 2004)

# Language: English

# ISBN-10: 0072229810

# ISBN-13: 978-0072229813


SQL>

SQL>

SQL> select sysdate

  2  ,      round(sysdate,'YY')     as round_yy

  3  from   dual;



SYSDATE   ROUND_YY

--------- ---------

24-JUL-08 01-JAN-09



SQL>

13. 15. ROUND
	13. 15. 1.	The ROUND Function
	13. 15. 2.	Datetime Formatting Parameters for ROUND(x[, unit])
	13. 15. 3.	ROUND(x[, unit]) : round x. By default, x is rounded to the beginning of the nearest day
	13. 15. 4.	Round date to day
	13. 15. 5.	Rounds May 25, 2005, to the first day in the nearest month
	13. 15. 6.	Rounding to the Nearest Minute
	13. 15. 7.	ROUND(date_in_1,'CC')
	13. 15. 8.	Round result from months_between

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