Information about empty values in Mysql

[WhatsANinja]

In the MySQL database, there is a table named "urunler." I have added a field called "kaydeden" to the table. After adding it, new data is coming in without any issues. However, there are already 7000 existing records. I want to change all of them to "1." I am trying to update the table using the command: "UPDATE urunler SET kaydeden = REPLACE(kaydeden, '', '1')" but the command is not working.