CREATE TABLE table_train_16 ("id" NUMBER, "bleeding" NUMBER, "brain_hernia" BOOLEAN, "allergy_to_granisetron" BOOLEAN, "intraperitoneal_infection" BOOLEAN, "intestinal_obstruction" BOOLEAN, "tumor" BOOLEAN, "NOUSE" FLOAT)

patients with advanced tumors.
SELECT * FROM table_train_16 WHERE tumor = 1
SELECT * FROM "table_train_16" WHERE "tumor" = 1