obviously I'm not understanding something. To avoid … At 9:24 AM -0400 8/24/01, Network wrote: >Would someone explain what is going wrong here. If the pattern finds a match in the expression, the function returns 1, else it returns 0. I need REGEXP because I want to chop my query in to 27 pieces, to make it more manageable. The syntax goes like this: REGEXP_LIKE(expr, pat[, match_type]) Where expr is the input string and pat is the regular expression for which you’re testing the string against. For example: SELECT * FROM orders WHERE order_id NOT BETWEEN 300 AND 399; This MySQL NOT example would return all rows where the order_id was NOT between 300 and 399, inclusive. REGEXP, RLIKE, & REGEXP_LIKE() Whether string expr matches regular expression pat.These return … REGEXP operator. Syntax: expr REGEXP pat Argument . MySQL REGEXP performs a pattern match of a string expression against a pattern. Example 1. "REGEXP 'pattern'" REGEXP is the regular expression operator and 'pattern' represents the pattern to be matched by REGEXP.RLIKE is the synonym for REGEXP and achieves the same results as REGEXP. Active 6 years, 9 months ago. This is horrible for complex queries. Definition of MySQL REGEXP_REPLACE() REGEXP_REPLACE() operator is used in the SELECT query, to replace the matched sub-string. Case 1 − If you want only those rows which have exactly 10 digits and all must be only digit, use the below regular expression. I'm looking to search a large MYSQL table for a string and only return results that aren't between parentheses. There is no MySQL equivalent. The dot matches all characters including newlines, and the caret and dollar only match at the very start and end of the string. Syntax. 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