| OLD | NEW | 
|---|
| (Empty) |  | 
|  | 1 DROP TABLE IF EXISTS domains; | 
|  | 2 DROP TABLE IF EXISTS corrections; | 
|  | 3 | 
|  | 4 CREATE TABLE domains( | 
|  | 5   id INT NOT NULL AUTO_INCREMENT, | 
|  | 6   domain VARCHAR(50) NOT NULL, | 
|  | 7   PRIMARY KEY(id), | 
|  | 8   UNIQUE(domain) | 
|  | 9 ); | 
|  | 10 | 
|  | 11 CREATE TABLE corrections( | 
|  | 12   id INT NOT NULL AUTO_INCREMENT, | 
|  | 13   domain INT NOT NULL, | 
|  | 14   status INT NOT NULL, | 
|  | 15   curr_month INT NOT NULL, | 
|  | 16   prev_month INT NOT NULL, | 
|  | 17   curr_year INT NOT NULL, | 
|  | 18   prev_year INT NOT NULL, | 
|  | 19   PRIMARY KEY(id), | 
|  | 20   FOREIGN KEY(domain) REFERENCES domains(id), | 
|  | 21   UNIQUE(domain, status) | 
|  | 22 ); | 
| OLD | NEW | 
|---|