Oracle REPLACE function
Description
The REPLACE function is used to return char with every occurrence of search_string replaced with replacement_string. If replacement_string is omitted or null, then all occurrences of search_string are removed. When search_string is null, then char is returned.
Syntax:
REPLACE(char, search_string [, replacement_string ] )
Parameters:
Name | Description | Data Type |
---|---|---|
char | A string | CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB |
search_string | A string, to be searched. | CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB |
replacement_string | A string, to be replaced. | CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB |
Return Value Type
CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB
Applies to
Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i
Pictorial Presentation

Examples: Oracle REPLACE function
The following example replaces occurrences of M with F:
SELECT REPLACE('MAN and MAT','M','F') "New String"
FROM DUAL;
Sample Output:
New String ----------- FAN and FAT
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