DECLARE @CHAINE AS VARCHAR(500)
DECLARE @NB AS INT
SET @CHAINE = '#NB# message#SS# recu#SS#'
SET @NB = 10
SELECT
CASE
WHEN
@NB > 1 THEN REPLACE(REPLACE(@CHAINE, '#SS#', 's'), '#NB#', @NB)
ELSE
REPLACE(REPLACE(@CHAINE, '#SS#', ''), '#NB#', @NB)
END
AS MOTAUPLURIEL