Я может чего не понял, но вот из справки:

Transact-SQL Reference


REPLACE
Replaces all occurrences of the second given string expression in the first string expression with a third expression.

Syntax
REPLACE ( 'string_expression1' , 'string_expression2' , 'string_expression3' )

Arguments
'string_expression1'

Is the string expression to be searched. string_expression1 can be of character or binary data.

'string_expression2'

Is the string expression to try to find. string_expression2 can be of character or binary data.

'string_expression3'

Is the replacement string expression string_expression3 can be of character or binary data.

Return Types
Returns character data if string_expression (1, 2, or 3) is one of the supported character data types. Returns binary data if string_expression (1, 2, or 3) is one of the supported binary data types.

Examples
This example replaces the string cde in abcdefghi with xxx.

SELECT REPLACE('abcdefghicde','cde','xxx')
GO

Here is the result set:

------------
abxxxfghixxx
(1 row(s) affected)


Чем не подходит?

Простите ребята - запостил не по теме (думал ещё в форуме по MSSQL) - теперь удалить не могу