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https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/Oracle-Regular-Expression-Support.html
Oracle Regular Expression Support D Oracle Regular Expression Support Oracle's implementation of regular expressions conforms with the IEEE Portable Operating System Interface (POSIX) regular expression standard and to the Unicode Regular Expression Guidelines of the Unicode Consortium.
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/sqlrf/Oracle-Regular-Expression-Support.html
Oracle's implementation of regular expressions conforms with the IEEE Portable Operating System Interface (POSIX) regular expression standard and to the Unicode Regular Expression Guidelines of the Unicode Consortium. This appendix contains the following sections: Multilingual Regular Expression Syntax
https://docs.oracle.com/cd/B12037_01/appdev.101/b10795/adfns_re.htm
The interpretation of metacharacters differs between tools that support regular expressions in the industry. If you are porting regular expressions from another environment to Oracle Database, ensure that the regular expression syntax …
https://docs.oracle.com/cd/B19306_01/B14251_01/adfns_regexp.htm
Oracle Database provides built-in support for some of the most heavily used Perl regular expression operators, for example, character class shortcuts, the non-greedy modifier, and so on. Oracle Database supports a set of common metacharacters used in regular expressions.
https://docs.oracle.com/database/121/ADFNS/adfns_regexp.htm
Oracle SQL support for regular expressions lets application developers implement complex pattern-matching logic in the database, which is useful for these reasons: By centralizing pattern-matching logic in the database, you avoid intensive string processing of SQL results sets by middle-tier applications.
https://www.databasestar.com/oracle-regexp-functions/
Nov 06, 2017 · The Oracle REGEXP_REPLACE function is used to search a string for a regular expression and replace it with other characters. It’s an extension of the standard Oracle REPLACE function , but REPLACE does not support regular expressions where REGEXP_REPLACE does.
https://www.regular-expressions.info/oracle.html
Oracle Database Regular Expressions. With version 10g Release 1, Oracle Database offers 4 regexp functions that you can use in SQL and PL/SQL statements. These functions implement the POSIX Extended Regular Expressions (ERE) standard. Oracle fully supports collating sequences and equivalence classes in bracket expressions. The NLS_SORT setting ...
https://docs.oracle.com/cd/B28359_01/server.111/b28286/ap_posix.htm
C Oracle Regular Expression Support. Oracle's implementation of regular expressions conforms with the IEEE Portable Operating System Interface (POSIX) regular expression standard and to the Unicode Regular Expression Guidelines of the Unicode Consortium.
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