Почему выдаёт ошибку с IDENTITY колонкой: ERROR 1064 (42000)?
CREATE TABLE Investors
(
IDInvestor INT NOT NULL IDENTITY,
InvestorName VARCHAR (50) NOT NULL,
PasportSN CHAR (11) NOT NULL,
PhoneNumber CHAR (15) NOT NULL,
PRIMARY KEY (PasportSN),
UNIQUE (PhoneNumber)
)
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IDENTITY, InvestorName VARCHAR (50) NOT NULL, PasportSN CHAR (11) NOT NULL, Phon' at line 3
Ответы (1 шт):
Автор решения: MaxU
→ Ссылка
Во-первых замените IDENTITY -> AUTO_INCREMENT, во-вторых сделайте столбец IDInvestor уникальным (UNIQUE) или первичным (PRIMARY KEY) ключем:
CREATE TABLE Investors
(
IDInvestor INT NOT NULL AUTO_INCREMENT,
InvestorName VARCHAR (50) NOT NULL,
PasportSN CHAR (11) NOT NULL,
PhoneNumber CHAR (15) NOT NULL,
PRIMARY KEY (PasportSN),
UNIQUE (PhoneNumber),
UNIQUE (IDInvestor)
);