> ## Documentation Index
> Fetch the complete documentation index at: https://www.integrate.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# ETL: LAST_INDEX_OF

> Returns the position of the last occurrence of a search string in a string field, when searching backward from the end of the string.

## Description

Returns the position of the last occurrence of a search string in a string field, when searching backward from the end of the string.

## Syntax

`LAST_INDEX_OF(string, search_string)`

## Arguments

*string* - string expression to search in

*search\_string* - string expression to search for

## Examples

`LAST_INDEX_OF('Ventura Beach,93009,CA',',')` returns 19

## Return value datatype

Int

## Impact of null value

If any (or all) inputs are null, returns null.