Backup DB with dynamic sql - want to substitute in dbname and disk file path

Re: Backup DB with dynamic sql - want to substitute in dbname and disk file path

Hope I can explain this. Below is a small snippet of code. I want to set @SQLTemplate_TSQL once at the top of the script and then execute the SET @SQLCommand and sp_executesql in a loop that reads a list of databases. It all works, except for the BACKUP DATABASE. Right now it evaluates when the SET @SQLTemplate_TSQL is evaluated. I want it to evaluate when it is executed. I want the DB_NAME() of the USE @dbname.

-- change @dbname and @dbbackuppath 
DECLARE @SQLCommand NVARCHAR(MAX)
DECLARE @SQLTemplate_TSQL NVARCHAR(MAX)
DECLARE @dbname varchar(128) = 'Bank04'
-- one time setting of @SQLTemplate_TSQL
set @SQLTemplate_TSQL = 
'
DECLARE @dbbackuppath varchar(128) = ''''d:\backups''''
IF RIGHT(@dbbackuppath, 1) <> ''''\''''
	SET @dbbackuppath = @dbbackuppath + ''''\''''
SET @dbbackuppath = @dbbackuppath + DB_Name() + ''''.bak''''  
PRINT @dbbackuppath
BACKUP DATABASE ' + DB_NAME() + ' to DISK=''' +  QUOTENAME(@dbbackuppath, CHAR(39)) + ''' 
'
-- Execute this several times over different databases
SET @SQLCommand = ' 
	USE ' + QUOTENAME(@dbname) + ';
		EXEC(''' + @SQLTemplate_TSQL + ''') '
PRINT @SQLCommand		
EXECUTE sp_executesql @SQLCommand