16.20 - INSTR - Teradata Database

Teradata Vantageā„¢ - SQL Functions, Expressions, and Predicates

prodname
Advanced SQL Engine
Teradata Database
vrm_release
16.20
created_date
March 2019
category
Programming Reference
featnum
B035-1145-162K

Purpose

Searches the source_string argument for occurrences of search_string.

Syntax



TD_SYSFNLIB.
Name of the database where the function is located.
source_string
A character string or string expression.
search_string
A string of characters that the function searches for in source_string.
position
Specifies that the search will begin at this position in source_string.
If position is not specified, the search starts at the beginning of source_string.
If position is negative, the function counts and searches backwards from the end of source_string. position cannot have a value of zero.
occurrence
Specifies which occurrence of search_string to find in source_string.
If occurrence is not specified, the function searches for the first occurrence.
If occurrence is greater than 1, the function searches for additional occurrences beginning with the second character in the previous occurrence. occurrence cannot be zero or a negative value.