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Categories / Oracle PLSQL Tutorial / Regular Expressions Functions

 

Bracketed Classes

[:digit:] matches all numbers. [:alnum:] matches all numbers and letters (alphanumerics). [:alpha:] matches characters only. [:lower:] matches lowercase characters. [:upper:] matches uppercase characters. [:space:] matches spaces. [:punct:] matches punctuation. [:print:] matches printable characters. [:cntrl:] matches control characters.