Oracle Regular Expressions Pocket Reference [NOOK Book]

Overview

Support for regular expressions in SQL and PL/SQL is one of the most exciting features of Oracle Database 10G. Oracle has long supported the ANSI-standard LIKE predicate for rudimentary pattern matching, but regular expressions take pattern matching to a new level. They provide a powerful way to select data that matches a pattern, as well as to manipulate, rearrange, and change that data.This concise pocket guide is part tutorial and part quick-reference. It's suitable for those who have never used regular ...

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Oracle Regular Expressions Pocket Reference

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Overview

Support for regular expressions in SQL and PL/SQL is one of the most exciting features of Oracle Database 10G. Oracle has long supported the ANSI-standard LIKE predicate for rudimentary pattern matching, but regular expressions take pattern matching to a new level. They provide a powerful way to select data that matches a pattern, as well as to manipulate, rearrange, and change that data.This concise pocket guide is part tutorial and part quick-reference. It's suitable for those who have never used regular expressions before, as well as those who have experience with Perl and other languages supporting regular expressions. The book describes Oracle Database 10G's support for regular expressions, including globalization support and differences between Perl's syntax and the POSIX syntax supported by Oracle 10G. It also provides a comprehensive reference, including examples, to all supported regular expression operators, functions, and error messages.O'Reilly's Pocket References have become a favorite among developers and database administrators everywhere. By providing a wealth of important details in a concise, well-organized format, these handy books deliver just what you need to complete the task at hand. Whether you're using regular expressions for the first time or applying your skills from other languages to the latest version of Oracle, the Oracle Regular Expressions Pocket Reference is the book to have close by.

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Product Details

  • ISBN-13: 9780596552497
  • Publisher: O'Reilly Media, Incorporated
  • Publication date: 9/5/2003
  • Series: Pocket Reference (O'Reilly)
  • Sold by: Barnes & Noble
  • Format: eBook
  • Edition number: 1
  • Pages: 66
  • Sales rank: 457,137
  • File size: 2 MB

Meet the Author

Gennick is a professional software developer with over twelve years of experience using a variety of platforms and technologies and is currently employed as a senior technology consultant by KPMG Peat Marwick.

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Table of Contents

Introduction
Tutorial
Patterns
Regular Expressions
Bracket Expressions
The Escape Character
Subexpressions
Alternation
Greediness
Backreferences
Fuzziness
Oracle's Regular Expression Support
Regular Expression Functions
Regular Expression Locale Support
Regular Expression Matching Options
Standards Compliance
Differences Between Perl and Oracle
Regular Expression Quick Reference
\ (Backslash)
\1 through \9 (Backslash)
. (Period)
^ (Caret)
$ (Dollar Sign)
[ ] (Square Brackets)
[. .] (Collation Element)
[: :] (Character Class)
[= =] (Equivalence Class)
* (Asterisk)
+ (Plus Sign)
? (Question Mark)
{ } (Curly Braces)
Vertical Bar (|)
( ) (Parentheses)
Oracle Regular Expression Functions
REGEXP_INSTR
REGEXP_LIKE
REGEXP_REPLACE
REGEXP_SUBSTR
Oracle Regular Expression Error Messages
ORA-01760: illegal argument for function
ORA-12722: regular expression internal error
ORA-12725: unmatched parentheses in regular expression
ORA-12726: unmatched bracket in regular expression
ORA-12727: invalid back reference in regular expression
ORA-12728: invalid range in regular expression
ORA-12729: invalid character class in regular expression:
ORA-12730: invalid equivalence class in regular expression
ORA-12731: invalid collation class in regular expression
ORA-12732: invalid interval value in regular expression
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