Orcale SQL Question

Tables:

CREATE TABLE VEHICLE_19 (V_ID CHAR(5) PRIMARY KEY , V_MODEL VARCHAR2(15), V_MAKE CHAR(4), COST_PER_DAY NUMBER(7,2));

INSERT INTO VEHICLE_19 VALUES ('V1001', 'Tata Sierra', '2011',37.50); INSERT INTO VEHICLE_19 VALUES ('V1002', 'Honda CRV', '2016',47.50); INSERT INTO VEHICLE_19 VALUES ('V1003', 'Mercedez Benz', '2011',117.50); INSERT INTO VEHICLE_19 VALUES ('V1004', 'Ford Focus', '2011',87.50); INSERT INTO VEHICLE_19 VALUES ('V1005', 'Dodge Dakota', '2013',87.00);

Create table CLIENT_19 (C_ID CHAR(10) PRIMARY KEY, F_NAME VARCHAR2(25), L_NAME VARCHAR2(25), DOB DATE, CITY VARCHAR2(15), GENDER CHAR(1) CHECK (GENDER IN (NULL, 'M','F')));

INSERT INTO CLIENT_19 VALUES ('C00000001','Mike','Thomas',to_date('1998-12-20','yyyy-mm-dd'), 'Kamloops','M'); INSERT INTO CLIENT_19 VALUES ('C00000002','Andrew','Thessen',to_date('1988-08-20','yyyy-mm-dd'), 'Williams Lake','M');

create table RESERVATION_19 (R_ID NUMBER PRIMARY KEY, START_DATE DATE, END_DATE DATE, C_ID CHAR(10) REFERENCES CLIENT_19(C_ID), V_ID CHAR(5) REFERENCES VEHICLE_19(V_ID) , TOTAL_COST NUMBER(9,2));

INSERT INTO RESERVATION_19 VALUES (1, TO_DATE('12-01-2019','DD-MM-YY'), TO_DATE('15-01-2019','DD-MM-YY'), 'C00000001', 'V1003',352.50); INSERT INTO RESERVATION_19 VALUES (2, TO_DATE('2-01-2019','DD-MM-YY'), TO_DATE('6-01-2019','DD-MM-YY'), 'C00000002', 'V1001',150.00); INSERT INTO RESERVATION_19 VALUES (3, TO_DATE('10-10-2018','DD-MM-YY'), TO_DATE('12-10-2018','DD-MM-YY'), 'C00000001', 'V1004',150.00);

Question:

Minimum Age and maximum Age (Function)

Wrie a function so that the vehicle reservation system should check the age of the person renting the car. The minimum age is 21 years and maximum age is 70 years. Your function should return False if the is not yet 21 or above 70 years. The age is calculated as of today (SYSDATE on the server) when the c_id is passed to the function.

Thanks

CLIENT C ID F NAME L NAME DOB CITY GENDER VEHICLE RESERVATION V ID V MODEL V MAKE COST PER DAY R ID START DATE END DATE C ID V ID TOTAL COST ARCHIVED RESERVATION R ID START DATE END DATE C ID V ID TOTAL COST ADDED BY ADDED DATE STATS YEAR C ID AGE GENDER TOT RESERVATIONS TOT DAYS OF RESERVATIONS TOT COST OF RESERVATIONS BLACK_LIST C ID F NAME L NAME DOB CITY GENDER REASON ADDED BY ADDED DATE CLIENT C ID F NAME L NAME DOB CITY GENDER VEHICLE RESERVATION V ID V MODEL V MAKE COST PER DAY R ID START DATE END DATE C ID V ID TOTAL COST ARCHIVED RESERVATION R ID START DATE END DATE C ID V ID TOTAL COST ADDED BY ADDED DATE STATS YEAR C ID AGE GENDER TOT RESERVATIONS TOT DAYS OF RESERVATIONS TOT COST OF RESERVATIONS BLACK_LIST C ID F NAME L NAME DOB CITY GENDER REASON ADDED BY ADDED DATE