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MS Access InstrRev() Function


Search for "t" in string "Customer" (start from the end of the string) and return position:

SELECT InstrRev("Customer", "t") AS MatchPosition;

Definition and Usage

The InstrRev() function gets the position of the first occurrence of a string in another, from the end of string.

This function performs a case-insensitive search.


InstrRev(string1, string2, start, compare)

Parameter Values

Parameter Description
string1 Required. The string to be searched
string2 Required. The string to search for
start Optional. The start position for the search. Position -1 is default (which means that it starts with the last character position)
compare Optional. The type of string comparison.

Possible values:
-1: Use the setting of Option Compare
0: Binary comparison
1: Textual comparison
2: Comparison based on info in your database

Return Values

  • If string2 is not found within string1, this function returns 0
  • If string2 is zero-length, this function returns the value in the start parameter
  • If string1 is zero-length, this function returns 0
  • If string1 is null, this function returns null
  • If start is > than the length of string2, this function returns 0

Technical Details

Works in: From Access 2000