TRUNC(x[, unit]) truncates x. : TRUNC « Date Timestamp Functions « Oracle PL/SQL Tutorial

Oracle PL/SQL Tutorial

1.	Introduction
2.	Query Select
3.	Set
4.	Insert Update Delete
5.	Sequences
6.	Table
7.	Table Joins
8.	View
9.	Index
10.	SQL Data Types
11.	Character String Functions
12.	Aggregate Functions
13.	Date Timestamp Functions
14.	Numerical Math Functions
15.	Conversion Functions
16.	Analytical Functions
17.	Miscellaneous Functions
18.	Regular Expressions Functions
19.	Statistical Functions
20.	Linear Regression Functions
21.	PL SQL Data Types
22.	PL SQL Statements
23.	PL SQL Operators
24.	PL SQL Programming
25.	Cursor
26.	Collections
27.	Function Procedure Packages
28.	Trigger
29.	SQL PLUS Session Environment
30.	System Tables Data Dictionary
31.	System Packages
32.	Object Oriented
33.	XML
34.	Large Objects
35.	Transaction
36.	User Privilege

Java

Java Tutorial

Java Source Code / Java Documentation

Illustrator Tutorials

GIMP Tutorials

C# / C Sharp

C# / CSharp Tutorial

C# / CSharp Open Source

SQL Server / T-SQL Tutorial

Flash / Flex / ActionScript

VBA / Excel / Access / Word

XML

XML Tutorial

Microsoft Office PowerPoint 2007 Tutorial

Microsoft Office Excel 2007 Tutorial

Microsoft Office Word 2007 Tutorial

Oracle PL/SQL Tutorial » Date Timestamp Functions » TRUNC

13. 24. 2. TRUNC(x[, unit]) truncates x.

By default, x is truncated to the beginning of the day.

If you supply an optional unit string, x is truncated to that unit.


SQL> SELECT TRUNC(TO_DATE('25-MAY-2005'), 'YYYY')

  2  FROM dual;



TRUNC(TO_

---------

01-JAN-05



SQL>

13. 24. TRUNC
	13. 24. 1.	TRUNC() parameter list
	13. 24. 2.	TRUNC(x[, unit]) truncates x.
	13. 24. 3.	How Oracle Interprets Two-Digit Years
	13. 24. 4.	Truncates May 25, 2005, to the first day in the month
	13. 24. 5.	Truncates 7:45:26 P.M. on May 25, 2005 to the hour
	13. 24. 6.	Examples of the TRUNC function being applied to datetime values
	13. 24. 7.	TRUNC(date_in,'YYYY')
	13. 24. 8.	TRUNC(date_in,'MM')
	13. 24. 9.	TRUNC(): truncate May 25, 2005, to the first day in the year
	13. 24. 10.	Use TRUNC(date_variable) when you want to extract a date from a timestamp

www.java2java.com | Contact Us

All other trademarks are property of their respective owners.