Using sql to populate Header field for Table Customizer

in Table Customizer, Header field: i want to populate this data with query from multi-languages table
how do I enter this query to this field?
Thanks in advance.

You have to add dynamic properties to the table that are bound to the SQL queries. Once you have the values in properties you can bind the table attributes dataset on the table to the cellUpdate binding to dynamically change a header’s cell. You will have to have one property per cell.