Error Code: 1062. Duplicate entry '1' for key 'PRIMARY'
I have a problem on this error message, when i try this:
INSERT INTO `PROGETTO`.`UFFICIO-INFORMAZIONI` (`ID`, `viale`, `num_civico`,
`data_apertura`, `data_chiusura`, `orario_apertura`, `orario_chiusura`,
`telefono`, `mail`, `web`, `Nome-paese`, `Comune`)
VALUES (1, 'Viale Cogel ', '120', '2012-05-21', '2012-09-30', '08:00', '23:30',
'461801243', '[email protected]', 'Bolzanoturismo.it', 'Bolzano', 'BZ')
Error Code: 1062. Duplicate entry '1' for key 'PRIMARY'
Answer
The main reason why the error has been generated is because there is already an existing value of 1 for the column ID in which you define it as PRIMARY KEY (values are unique) in the table you are inserting.
Why not set the column ID as AUTO_INCREMENT?
CREATE TABLE IF NOT EXISTS `PROGETTO`.`UFFICIO-INFORMAZIONI` (
`ID` INT(11) NOT NULL AUTO_INCREMENT,
`viale` VARCHAR(45) NULL ,
.....
and when you are inserting record, you can now skip the column ID
INSERT INTO `PROGETTO`.`UFFICIO-INFORMAZIONI` (`viale`, `num_civico`, ...)
VALUES ('Viale Cogel ', '120', ...)