· 8 years ago · Jul 20, 2018, 11:40 AM
1CREATE TABLE IF NOT EXISTS `Disease` (
2 `Name` varchar(20) NOT NULL,
3 `Age` int(10) unsigned NOT NULL,
4 `Descriptin` text NOT NULL,
5 `Sex` varchar(10) NOT NULL,
6 `Ethnicity` varchar(20) NOT NULL,
7 PRIMARY KEY (`Name`,`Sex`,`Ethnicity`),
8 KEY `Sex` (`Sex`),
9 KEY `Ethnicity` (`Ethnicity`)
10 )
11
12 ALTER TABLE `Disease`
13 ADD CONSTRAINT `Disease_ibfk_1` FOREIGN KEY (`Sex`) REFERENCES `Sex` (`Sex`) ON DELETE CASCADE ON UPDATE CASCADE,
14 ADD CONSTRAINT `Disease_ibfk_2` FOREIGN KEY (`Ethnicity`) REFERENCES `Ethnicity` (`Ethnicity`) ON DELETE CASCADE ON UPDATE CASCADE;
15
16Disease(Name="DiseaseName",Age="40",Description="is caused by...",Sex="male",Ethnicity="Caucasian",Symptoms"Headache,sorethroat,fever")