Oracle Regular Expressions

[Janeice DelVecchio]

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?

Thanks

[Christophe Verré]

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.

[Janeice DelVecchio]

Thanks a lot!