text: DROP TABLE IF EXISTS "IOUs" cascade;
  CREATE TABLE "IOUs" ("fname" VARCHAR(20), "lname"  VARCHAR(20), "amount" FLOAT);
  INSERT INTO "IOUs" ("fname", "lname", "amount") VALUES ('Bob', 'Smith', 30);
  INSERT INTO "IOUs" ("fname", "lname", "amount") VALUES ('Sue', 'Jones', 20);
  INSERT INTO "IOUs" ("fname", "lname", "amount") VALUES ('Bob', 'Smith', 30);