Well, this is actually a simple question but I can't seem to find a proper answer anywhere else.
I have an id column. The column is empty, but the table contains approximately 11,000 rows. I want the empty id column to be used as the Id. What PHP/SQL code can I run to fill those 11,000 rows of that id column? (like so: '1, 2, 3, 4... ect')