primary key multiple
CREATE TABLE Persons (
Rollno int NOT NULL,
FirstName varchar(30),
LastName varchar(30) NOT NULL,
class varhcar(20),
Age int,
CONSTRAINT PK_Student PRIMARY KEY (Rollno,LastName)
);primary key multiple
CREATE TABLE Persons (
Rollno int NOT NULL,
FirstName varchar(30),
LastName varchar(30) NOT NULL,
class varhcar(20),
Age int,
CONSTRAINT PK_Student PRIMARY KEY (Rollno,LastName)
);Copyright © 2021 Codeinu
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