i have try this but not works, please help..
-----------------------------------
ALTER PROCEDURE [dbo].[SPDatabaseBackup]
@DatabaseNamavarchar(200),
@DatabaseAlamatvarchar(2000)
AS
DECLARE
@DatabaseNama_varchar(200),
@DatabaseAlamat_varchar(2000),
@Backupnvarchar(MAX)
SET @DatabaseNama_= QUOTENAME(@DatabaseNama)
SET @DatabaseAlamat_ = @DatabaseAlamat+'\'+@DatabaseNama+'.bak'
SET @Backup= 'BACKUP DATABASE '+ @DatabaseNama_ +
' TO DISK = '+ QUOTENAME(@DatabaseAlamat_, '''')
EXEC (@Backup)