text: DROP TABLE IF EXISTS student;
  CREATE TABLE student ("ID" INTEGER,"Sport" VARCHAR(50),"Name" VARCHAR(50));
  INSERT INTO student values ('10', '100', 'Venus Williams');
  INSERT INTO student values ('20', NULL , 'Demi Moore');
  DROP TABLE IF EXISTS sport;
  CREATE TABLE sport ("ID" INTEGER, "Name" VARCHAR(50));
  INSERT INTO sport values ('100', 'Tennis');
  