MySQL : Error Code: 1062. Duplicate entry 1 for key PRIMARY
MySQL : Error Code: 1062. Duplicate entry 1 for key PRIMARY
MySQL error code 1062, "Duplicate entry '1' for key 'PRIMARY'", signifies a violation of the primary key constraint. This occurs when you attempt to insert or update a row with a value for the primary key column that already exists in the table. Primary keys must be unique to ensure each row is uniquely identifiable. To resolve this, ensure the value you're trying to insert or update isn't already present in the primary key column. If the column is auto-incremented, verify that the auto-increment counter hasn't been manually overridden with a duplicate value. Alternatively, consider using `ON DUPLICATE KEY UPDATE` if your intention is to update the existing row instead of creating a new one. Analyze your data and insertion logic to prevent future occurrences of this error.
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