text: CREATE TABLE subdivision_SG (id VARCHAR(6) NOT NULL, name VARCHAR(255), level VARCHAR(64) NOT NULL, PRIMARY KEY(id));
  
  INSERT INTO "subdivision_SG" ("id", "name", "level") VALUES ('SG-01', 'Central Singapore', 'district');
  INSERT INTO "subdivision_SG" ("id", "name", "level") VALUES ('SG-02', 'Northeast', 'district');
  INSERT INTO "subdivision_SG" ("id", "name", "level") VALUES ('SG-03', 'Northwest', 'district');
  INSERT INTO "subdivision_SG" ("id", "name", "level") VALUES ('SG-04', 'Southeast', 'district');
  INSERT INTO "subdivision_SG" ("id", "name", "level") VALUES ('SG-05', 'Southwest', 'district');
  