no Primary key

[Guest_imported]

I get this mesage "Data in this table cannot be edited because it has no primary key."

I have some bad data that i inpited on a php bb and I am using webmin and taht is the mesage I have when I view the table contents. when I try to delet the data via the script in the bb I get a MySQL syntax error.

How can I edit the data with out a primary key, or is that the problem.

 

[gheist]

ALTER TABLE problem PRIMARY KEY unique_field