SQL Composite Primärschlüssel
CREATE TABLE voting (
QuestionID NUMERIC,
MemberID NUMERIC,
PRIMARY KEY (QuestionID, MemberID)
);
Code with bulbul
CREATE TABLE voting (
QuestionID NUMERIC,
MemberID NUMERIC,
PRIMARY KEY (QuestionID, MemberID)
);CREATE TABLE student
(rollNumber INT,
name VARCHAR(30),
class VARCHAR(30),
section VARCHAR(1),
mobile VARCHAR(10),
PRIMARY KEY (rollNumber, mobile)); -- This thingCREATE TABLE student
(rollNumber INT,
name VARCHAR(30),
class VARCHAR(30),
section VARCHAR(1),
mobile VARCHAR(10),
PRIMARY KEY (rollNumber, mobile));