mysql insert error 1062

Question

SQL query:

INSERT INTO  `website_categorization`.`category_keyword` (
`ID` ,
`ID_Category` ,
`Keyword` ,
`Score`)
VALUES (
NULL ,  \'18\',  \'free mail\',  \         


        

Answer 1

You already have a row in your database with the values '18' and 'free mail'. You can't have two such rows because of the unique constraint. You have some choices:

• Remove the original row and try your insert again: DELETE FROM yourtable WHERE ID_Category = '18' AND Keyword = 'free mail'.
• Remove the unique constraint to allow both rows to exist.
• Use INSERT IGNORE to ignore the error.
• Use REPLACE instead of INSERT to replace the old row with the new row.
• Attempt the INSERT knowing that the client-side will be alerted of the error.