⇢ СР
Стас Руднев
Как в mysql одной таблице создать два primary key?
mysql> CREATE TABLE TABLE1
-> (field1 CHAR (8) NOT NULL,
-> field2 VARCHAR (16) NOT NULL,
-> field3 VARCHAR (5),
-> PRIMARY KEY (field1, field2));
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 '' at line 5
mysql> CREATE TABLE TABLE1 (field1 CHAR (8) NOT NULL PRIMARY KEY, field2 CHAR (8) NOT NULL PRIMARY KEY, field3 VARCHAR (16));
ERROR 1068 (42000): Multiple primary key defined