While this regex is not DBMS-specific all new allowed characters (all of `\W`) seem to be relevant for MS-SQL only. So I suggest to still limit the allowed characters to those allowed in MS-SQL. I took a quick look at https://docs.microsoft.com/en-us/sql/odbc/microsoft/column-name-limitations?view=sql-server-2017 * `` ` `` is not allowed * `|` is not allowed So I suggest ``[^`|]+``.