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Oracle Regular Expressions

Janeice DelVecchio
Saloon Keeper

Joined: Sep 14, 2009
Posts: 1789

I'm studying for "Oracle Database SQL Expert". There is a whole section about regular expressions:
Regular Expression Support
[ ] Using Meta Characters
[ ] Regular Expression Functions
[ ] Replacing Patterns
[ ] Regular Expressions and Check Constraints

Are these the same regular expressions used in Java? If not, how do they differ?


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Christophe Verré

Joined: Nov 24, 2005
Posts: 14688

Oracle's regular expressions are based on the POSIX Extended Regular Expressions (ERE). Java adds more functionality to it, but I think the basic syntax is the same. You'll find some comparative information here.

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Janeice DelVecchio
Saloon Keeper

Joined: Sep 14, 2009
Posts: 1789

Thanks a lot!
I agree. Here's the link:
subject: Oracle Regular Expressions
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