I'm a beginner at this! Would appreciate any help. When I try to 'add a new row' to the MySQL database I get the following message:
'duplicate entry for key 1'
Anything I can do? Need to enter quite a lot of info.
Thanks very much

Hi,
This error would come up if you try to duplicate a data and a
unique or a primary key constraint is set on that field .
Either remove that constraint or avoid duplicating the data as per your requirement.
Selin