REPLACE()

REPLACE() is a SQL function in the String Functions category. Replaces all occurrences of `from_string` with `to_string` in a string. The syntax is REPLACE(string, from_string, to_string). It accepts string, from_string, to_string. It returns modified string. A typical example: SELECT REPLACE('Hello World', 'World', 'SQL'); -- 'Hello SQL' A close relative is CONCAT(), which concatenates two or more strings into one string. Returns NULL if any argument is NULL. A close relative is SUBSTRING(), which extracts characters from a string starting at position `start` for `length` characters. A close relative is LENGTH(), which returns the number of characters in a string. More about this category: String manipulation — CONCAT, SUBSTRING, REPLACE, TRIM, UPPER, LOWER, LENGTH. Related String Functions entries: CONCAT(), SUBSTRING(), LENGTH(), TRIM(), UPPER(), LOWER(), LPAD() / RPAD(), INSTR(). This page is part of the free SQL Reference documentation covering 762+ statements, functions, and clauses, each with syntax, parameters, return values, and examples for MySQL, PostgreSQL, SQL Server, and SQLite.