I have two tables one is called Players and the other is importdata. The importdata table consists of two fields the player id (PID) and the photo (Photo).

In the Players table I created a column for the Photo field to be imported into. What I would like to do is take the Photo field from the importdata table and insert it into the photo_high field in the Players table where the PID fields match.

I thought something like this would work, but it says that there is an unknown column.

INSERT INTO (`photo_high`)
SELECT PID, Photo
FROM importdata
WHERE Players.PID = importdata.PID

Can this be achieved with an SQL statement or do I have to write some kind of script? Any guidance would be great.

Players

PID
photo_high (empty)

importdata

PID
Photo (full of content)

I think you want update rather than insert:

update Players p join
       ImportData id
       on p.Pid = id.pid
    set photo_high = id.photo;

insert creates new rows in a table. update changes values in existing fields.