Information technology. Database languages. SQL technical reports - XQuery regular expression support in SQL Ingestion-build-82396 The provisions in this document

The provisions in this document are in line with the state of art at the moment of writing

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Information technology. Database languages. SQL technical reports - XQuery regular expression support in SQL Ingestion-build-82396 The provisions in this document1 Scope This Technical Report describes the regular expression support in SQL adopted from the regular expression syntax of [XQuery F&O], which is derived from Perl. This Technical Report discusses five operators using this regular expression syntax: LIKE_REGEX predicate, to determine the existence of a match to a regular expression. OCCURRENCES_REGEX numeric function, to determine the number of matches to a regular expression. POSITION_REGEX