 --  DDL for Table PRESCRIPTIONS
 --------------------------------------------------------
 
-DROP TABLE IF EXISTS PRESCRIPTIONS;
+DROP TABLE IF EXISTS PRESCRIPTIONS CASCADE;
 CREATE TABLE PRESCRIPTIONS
    (	ROW_ID INT NOT NULL,
 	SUBJECT_ID INT NOT NULL,

--  DDL for Table DIAGNOSES_ICD
--------------------------------------------------------

DROP TABLE IF EXISTS DIAGNOSES_ICD;
CREATE TABLE DIAGNOSES_ICD
   (	ROW_ID INT NOT NULL,
	SUBJECT_ID INT NOT NULL,

--  DDL for Table PROCEDUREEVENTS_MV
--------------------------------------------------------

DROP TABLE IF EXISTS PROCEDUREEVENTS_MV CASCADE;
CREATE TABLE PROCEDUREEVENTS_MV
   (	ROW_ID INT NOT NULL,
	SUBJECT_ID INT NOT NULL,
