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G4G0-1/Semester 1/Database Systems/Assignment/postgre Compatible.md
2024-01-15 20:14:10 +00:00

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1. **Hospital** Table
```SQL
CREATE TABLE hospital (
hospital_id CHAR(3) CONSTRAINT hID_pk PRIMARY KEY,
hospital_name VARCHAR(30),
city VARCHAR(15),
postcode VARCHAR(8) CONSTRAINT postcode_unique UNIQUE
);
```
2. **Transplant_Unit** Table
```SQL
CREATE TABLE transplant_unit (
unit_id CHAR(4) CONSTRAINT uID_pk PRIMARY KEY,
hospital_id CHAR(3),
specialisation VARCHAR(20),
CONSTRAINT hID_fk FOREIGN KEY ( hospital_id ) REFERENCES hospital( hospital_id )
);
```
3. **Organ** Table:
```SQL
CREATE TABLE organ (
organ_id CHAR(3) CONSTRAINT oID_pk PRIMARY KEY,
organ_type VARCHAR(15)
);
```
4. **Patient** Table:
```SQL
CREATE TABLE patient (
patient_id CHAR(3) CONSTRAINT pID_pk PRIMARY KEY,
patient_name VARCHAR(10),
age INTEGER
);
```
5. **Donor** Table:
```SQL
CREATE TABLE donor (
donor_id CHAR(3) CONSTRAINT dID_pk PRIMARY KEY,
donor_name VARCHAR(10),
age INTEGER
);
```
6. **Operation** Table
```SQL
CREATE TABLE operation (
operation_id CHAR(3),
organ_id CHAR(3),
unit_id CHAR(4),
patient_id CHAR(3),
donor_id CHAR(3),
CONSTRAINT comp_op_key PRIMARY KEY ( operation_id, organ_id ),
CONSTRAINT oID_fk FOREIGN KEY ( organ_id ) REFERENCES organ( organ_id ),
CONSTRAINT uID_fk FOREIGN KEY ( unit_id ) REFERENCES transplant_unit( unit_id ),
CONSTRAINT pID_fk FOREIGN KEY ( patient_id ) REFERENCES patient( patient_id ),
CONSTRAINT dID_fk FOREIGN KEY ( donor_id ) REFERENCES donor( donor_id )
);
```