create table patients ( patient_id VARCHAR(255), name VARCHAR(255), insurance DECIMAL(15,2), date_admitted DATE, date_checked_out DATE, PRIMARY KEY(patient_id) ); INSERT INTO patients (ID , name , insurance , date_admitted , date_checked_out) values (2 , 'Ali' , '22.2' , '2/1/2020' , '3/1/2020') SELECT * FROM table patients create table doctor ( doctor_id VARCHAR(255), name VARCHAR(255), specialization VARCHAR(255), PRIMARY KEY (doctor_id) ); create table test ( test_id VARCHAR(255), test_name VARCHAR(255), test_date DATE, test_time TIME, result VARCHAR(255), PRIMARY KEY(test_id) ); create table doctor_patient ( patient_id VARCHAR(255), doctor_id VARCHAR(255), PRIMARY KEY(patient_id), FOREIGN KEY(doctor_id) REFERENCES doctor(doctor_id) ); create table test_log ( test_log_id varchar(255), patient_id VARCHAR(255), test_id VARCHAR(255), doctor_id VARCHAR(255), comments VARCHAR(255), PRIMARY KEY(test_log_id), FOREIGN KEY(test_id) REFERENCES test(test_id), FOREIGN KEY(patient_id) REFERENCES doctor_patient(patient_id), FOREIGN KEY(doctor_id) REFERENCES doctor(doctor_id) ); Create a function which accepts patient id and display the patients name, date admitted. Sample output is: The patient name is Maryam, she got admitted on 12-Feb-2020
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
create table patients (
patient_id VARCHAR(255),
name VARCHAR(255),
insurance DECIMAL(15,2),
date_admitted DATE,
date_checked_out DATE,
PRIMARY KEY(patient_id)
);
INSERT INTO patients (ID , name , insurance , date_admitted , date_checked_out) values (2 , 'Ali' , '22.2' , '2/1/2020' , '3/1/2020')
SELECT * FROM table patients
create table doctor (
doctor_id VARCHAR(255),
name VARCHAR(255),
specialization VARCHAR(255),
PRIMARY KEY (doctor_id)
);
create table test (
test_id VARCHAR(255),
test_name VARCHAR(255),
test_date DATE,
test_time TIME,
result VARCHAR(255),
PRIMARY KEY(test_id)
);
create table doctor_patient
(
patient_id VARCHAR(255),
doctor_id VARCHAR(255),
PRIMARY KEY(patient_id),
FOREIGN KEY(doctor_id) REFERENCES doctor(doctor_id)
);
create table test_log
(
test_log_id varchar(255),
patient_id VARCHAR(255),
test_id VARCHAR(255),
doctor_id VARCHAR(255),
comments VARCHAR(255),
PRIMARY KEY(test_log_id),
FOREIGN KEY(test_id) REFERENCES test(test_id),
FOREIGN KEY(patient_id) REFERENCES doctor_patient(patient_id),
FOREIGN KEY(doctor_id) REFERENCES doctor(doctor_id)
);
- Create a function which accepts patient id and display the patients name, date admitted.
Sample output is:
The patient name is Maryam, she got admitted on 12-Feb-2020
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