The Return-option is set to 1 to indicate the end of the found pattern : REGEXP_INSTR « Regular Expressions 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 Source Code / Java Documentation

Java Open Source

Jar File Download

Photoshop Tutorials

Flash Tutorials

3ds-Max Tutorials

Illustrator Tutorials

C# / CSharp Tutorial

C# / CSharp Open Source

ASP.NET Tutorial

JavaScript DHTML

JavaScript Tutorial

JavaScript Reference

HTML CSS Reference

Python Tutorial

Python Open Source

SQL Server / T-SQL

SQL Server / T-SQL Tutorial

Oracle PL / SQL

VB.Net Tutorial

Flash / Flex / ActionScript

VBA / Excel / Access / Word

Microsoft Office PowerPoint 2007 Tutorial

Microsoft Office Excel 2007 Tutorial

Microsoft Office Word 2007 Tutorial

Oracle PL/SQL Tutorial » Regular Expressions Functions » REGEXP_INSTR

18. 2. 10. The Return-option is set to 1 to indicate the end of the found pattern


SQL>

SQL> SELECT REGEXP_INSTR('This is a test','a',1,2,1) position

  2  FROM dual;



  POSITION

----------

         0



SQL>

18. 2. REGEXP_INSTR
	18. 2. 1.	Regexp_Instr returns the location (beginning) of a pattern in a given string
	18. 2. 2.	REGEXP_INSTR(x, pattern [, start [, occurrence [, return_option [, match_option]]]]) searches for pattern in x.
	18. 2. 3.	Regexp_Instr
	18. 2. 4.	Parameters is a field that may be used to define how one wants the search to proceed:
	18. 2. 5.	Find the 's' and ignore case.
	18. 2. 6.	The simplest regular expression matches letters, letter for letter
	18. 2. 7.	SELECT REGEXP_INSTR('Two is bigger than One','One') where_it_is
	18. 2. 8.	Occurrence refers to the first, second, third, etc., occurrence of the pattern in S. The default is 1 (first).
	18. 2. 9.	Return-option returns the position of the start or end of the matched string.
	18. 2. 10.	The Return-option is set to 1 to indicate the end of the found pattern
	18. 2. 11.	Returns the position of the second occurrence that matches the regular expression s[[:alpha:]]{3} starting at position 1:
	18. 2. 12.	Returns the position of the second occurrence that matches the letter o starting at position 10 using REGEXP_INSTR()
	18. 2. 13.	Specify any series of letters and find matches, just like INSTR
	18. 2. 14.	regexp_instr(comments, '[^ ]+', 1, 9) > 0

www.java2java.com | Contact Us

Copyright 2009 - 12 Demo Source and Support. All rights reserved.

All other trademarks are property of their respective owners.