REGEXP | regexp_replace in oracle
InOracle,theREGEXP_REPLACE()functionreplacesoccurrencesofthesubstringwithinastringthatmatchesthegivenregularexpressionpattern.ItextendsthefunctionalityoftheREPLACE()[1]functionbyallowingustouseregularexpressionpatterns.SyntaxThesyntaxgoeslikethis:REGEXP_REPLACE(source_char,pattern[,replace_string[,position[,occurrence[,match_param]]]])Where:source_charisacharacterexpressionthatservesasthesearchvalue.pattern istheregularexpression.replace_string isthereplacementstring.position isapositiveinte...
In Oracle, the REGEXP_REPLACE() function replaces occurrences of the substring within a string that matches the given regular expression pattern.
It extends the functionality of the REPLACE()[1] function by allowing us to use regular expression patterns.
SyntaxThe syntax goes like this:
REGEXP_REPLACE ( source_char, pattern [, replace_string [, position [, occurrence [, match_param ] ] ] ] )Where:
source_char is a character expression that serves as the search value.pattern is the regular expression.replace_string is the replacement string.position is a positive integer that specifies where to begin the search. The default is 1, meaning, start the search at the first character.occurrence is a nonnegative integer that specifies which occurrence to replace. The default is 0, which means replace al...