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With the ongoing global pandemic, contact tracing has become a crucial element in combating the spread of the virus. With SQL, we can create a robust and effective contact tracing system.
Here’s a mock example of how SQL can be used to design such a system.
Creating the Tables
Let’s start by creating tables for infected persons and their close contacts. These tables will hold the necessary information for tracking and tracing.
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CREATE TABLE InfectedPersons ( ID INT PRIMARY KEY, FullName NVARCHAR(100), PhoneNumber NVARCHAR(15), DateTestedPositive DATE ); CREATE TABLE CloseContacts ( ID INT PRIMARY KEY, InfectedPersonID INT, FullName NVARCHAR(100), PhoneNumber NVARCHAR(15), DateOfContact DATE, FOREIGN KEY (InfectedPersonID) REFERENCES InfectedPersons(ID) ); |
Inserting Data
Once the tables are up and ready, we can insert data that will be used for tracing.
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INSERT INTO InfectedPersons VALUES(1, 'John Doe', '+1234567890', '2022-01-01'); INSERT INTO CloseContacts VALUES(1, 1, 'Jane Doe', '+0987654321', '2021-12-31'); |
Querying the database
Then, we can run a query to get a list of all close contacts for people that have tested positive.
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SELECT IP.FullName, IP.PhoneNumber, IP.DateTestedPositive, CC.FullName AS 'Close Contact', CC.DateOfContact FROM InfectedPersons IP JOIN CloseContacts CC ON IP.ID = CC.InfectedPersonID; |
There you have it! This is a basic example of a contact tracing system using SQL. Remember: this is a simple example, real-world systems should consider extra parameters like location data, privacy and security issues and more complex relationships between data.
Conclusion
Being able to utilize SQL for contact tracing helps streamline the process and allows for easy access and organization of crucial data. Keep in mind, this is just a basic example. Depending upon deployment, additional parameters and levels of complexity may be required. Happy coding!