SQL

SQL Error When Inserting Duplicate Values

CREATE TABLE Colleges (
  college_id INT NOT NULL UNIQUE,
  college_code VARCHAR(20) UNIQUE,
  college_name VARCHAR(50)
);

-- Inserting values to the Colleges table
INSERT INTO Colleges(college_id, college_code, college_name)
VALUES (1, "ARD12", "Star Public School"), (2, "ARD12", "Galaxy School");