Replace Function

Returns a String in which a specified substring has been replaced with another substring a specified number of times.


Replace(expression, find, replace [, start ] [, count ] [, compare ] )

The Replace function syntax has these arguments (argument: A value that provides information to an action, an event, a method, a property, a function, or a procedure.):

Argument Description
expression Required. String expression (string expression: An expression that evaluates to a sequence of contiguous characters. Elements of the expression can be: functions that return a string or a string Variant (VarType 8); a string literal, constant, variable, or Variant.) containing substring to replace.
find Required. Substring being searched for.
replace Required. Replacement substring.
start Optional. Position within expression where substring search is to begin. If omitted, 1 is assumed.
count Optional. Number of substring substitutions to perform. If omitted, the default value is –1, which means make all possible substitutions.
compare Optional. Numeric value indicating the kind of comparison to use when evaluating substrings. See Settings section for values.


The compare argument can have the following values:

Constant Value Description
vbUseCompareOption –1 Performs a comparison using the setting of the Option Compare statement.
vbBinaryCompare 0 Performs a binary comparison.
vbTextCompare 1 Performs a textual comparison.
vbDatabaseCompare 2 Microsoft Office Access 2007 only. Performs a comparison based on information in your database.

Return Values

Replace returns the following values:

If Replace returns
expression is zero-length Zero-length string ("")
expression is Null An error.
find is zero-length Copy of expression.
replace is zero-length Copy of expression with all occurences of find removed.
start > Len(expression) Zero-length string.
count is 0 Copy of expression.


The return value of the Replace function is a string, with substitutions made, that begins at the position specified by start and and concludes at the end of the expression string. It is not a copy of the original string from start to finish.

Applies to:
Access 2007