text: ﻿INSERT INTO "PlaylistItem_MetaDataItem" ("PlaylistItem_Id", "MetaDataItem_Id")
  SELECT @itemId, @metaDataItemId
  WHERE NOT EXISTS(
  	SELECT *
  	FROM "PlaylistItem_MetaDataItem" 
  	WHERE "PlaylistItem_Id" = @itemId AND "MetaDataItem_Id" = @metaDataItemId
  );