Oracle/PLSQL: REPLACE Function
This Oracle tutorial explains how to use the Oracle/PLSQL REPLACE function with syntax and examples.
Description
The Oracle/PLSQL REPLACE function replaces a sequence of characters in a string with another set of characters.
Syntax
The syntax for the REPLACE function in Oracle/PLSQL is:
REPLACE( string1, string_to_replace [, replacement_string] )
Parameters or Arguments
- string1
- The string to replace a sequence of characters with another set of characters.
- string_to_replace
- The string that will be searched for in string1.
- replacement_string
- Optional. All occurrences of string_to_replace will be replaced with replacement_string in string1. If the replacement_string parameter is omitted, the REPLACE function simply removes all occurrences of string_to_replace, and returns the resulting string.
Applies To
The REPLACE function can be used in the following versions of Oracle/PLSQL:
- Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i
Example
Let's look at some Oracle REPLACE function examples and explore how to use the REPLACE function in Oracle/PLSQL.
For example:
REPLACE('123123tech', '123');
Result: 'tech'
REPLACE('123tech123', '123');
Result:'tech'
REPLACE('222tech', '2', '3');
Result: '333tech'
REPLACE('0000123', '0');
Result: '123'
REPLACE('0000123', '0', ' ');
Result: ' 123'