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CREATE TABLE Product(model integer, 
maker varchar(20), 
CONSTRAINT SAND PRIMARY KEY (model), 
CONSTRAINT PANDA FOREIGN KEY (model) REFERENCES PC (model) 
ON DELETE CASCADE ON UPDATE CASCADE)
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String queryx="create table PC(model integer, speed integer, ram integer, hd integer, price integer,CONSTRAINT CHINA PRIMARY KEY (model))";
   
String query="CREATE TABLE Product(model integer, maker varchar(20), CONSTRAINT SAND PRIMARY KEY (model), CONSTRAINT PANDA FOREIGN KEY (model) REFERENCES PC (model) ON DELETE CASCADE ON UPDATE CASCADE)";
   
  s.executeUpdate(queryx);
  s.executeUpdate(query);


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