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Welcome to this exciting journey where we’ll be exploring the captivating application of SQL in developing a Pet Adoption Application. This application isn’t just for connecting potential pet parents with their furry friends, but also to help manage the adoption process seamlessly.
Defining Our Database
The first thing we need to do is to create the database and its corresponding tables to store information about the pets and the potential adopters. This is how we’ll do it:
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CREATE DATABASE PetAdoptionApp; USE PetAdoptionApp; CREATE TABLE Pets( PetID INT PRIMARY KEY, Name VARCHAR(100), Age INT, Type VARCHAR(50), Breed VARCHAR(50), AdoptionStatus VARCHAR(50) ); CREATE TABLE Adopters( AdopterID INT PRIMARY KEY, Name VARCHAR(100), Phone VARCHAR(15), Email VARCHAR(100), AdoptionStatus VARCHAR(50) ); |
Our database is made up of two tables: “Pets” and “Adopters”. The “AdoptionStatus” in both tables will indicate the adoption status of a pet and an adopter respectively.
Adding Data to the Tables
Now that our tables are set up, it’s time to add some data about the pets and the potential adopters.
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INSERT INTO Pets VALUES (1, 'Rex', 5, 'Dog', 'Bulldog', 'Available'), (2, 'Mittens', 2, 'Cat', 'Siamese', 'Available'); INSERT INTO Adopters VALUES (1, 'John Doe', '555-555-5555', <a href="mailto:'johndoe@gmail.com'" >'johndoe@gmail.com'</a>, 'Looking to Adopt'); |
Now we’ve added two pets, Rex and Mittens, to the Pets table and one potential adopter, John Doe, to the Adopters table.
Writing Queries
With our database and tables set up, and with some initial data, we can now write some SQL queries to interact with our data. Here’s how you can retrieve all available pets:
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SELECT * FROM Pets WHERE AdoptionStatus = 'Available'; |
Managing the Adoption Process
As part of managing the adoption process in our system, we need a way to update the status of a pet and an adopter when a pet is adopted. This is how we can do it:
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UPDATE Pets SET AdoptionStatus = 'Adopted' WHERE PetID = 1; UPDATE Adopters SET AdoptionStatus = 'Adopted a Pet' WHERE AdopterID = 1; |
With the above code, we’ve simulated an adoption process where John Doe adopted Rex and updated the status in our database.
Conclusion
As seen in this post, SQL can be a powerful tool for managing data in an application. With SQL, we were able to create a simple pet adoption process management system that matches adopters with available pets. This is just an introduction, and there’s a lot more you can do with SQL in your applications.
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