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Welcome, in this post we are going to learn how to create a task assignment and tracking application using SQL. This application can be very useful for project managers who need to assign tasks to members of their team and then track the progress of each task.
Database Table Creation
First, let’s define the SQL script for creating the necessary tables. We’ll need two tables – ‘Users’ and ‘Tasks’. ‘Users’ will hold information related to team members while ‘Tasks’ will hold information related to the assigned tasks.
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CREATE TABLE Users ( UserID INT PRIMARY KEY, UserName VARCHAR(100), UserEmail VARCHAR(100) ); CREATE TABLE Tasks ( TaskID INT PRIMARY KEY, TaskName VARCHAR(255), TaskDescription TEXT, AssignedTo INT, TaskStatus VARCHAR(50), FOREIGN KEY (AssignedTo) REFERENCES Users(UserID) ); |
Data Insertion
Now, let’s insert some sample data into the tables.
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INSERT INTO Users VALUES (1, 'John Doe', <a href="mailto:'john.doe@example.com'" >'john.doe@example.com'</a>); INSERT INTO Users VALUES (2, 'Jane Smith', <a href="mailto:'jane.smith@example.com'" >'jane.smith@example.com'</a>); INSERT INTO Tasks VALUES (1, 'Design Database', 'Design the database for the application', 1, 'In Progress'); INSERT INTO Tasks VALUES (2, 'Develop Frontend', 'Develop the frontend for the application', 2, 'Not Started'); |
Task Assignment
To assign or reassign a task to a user, we update the ‘AssignedTo’ field in the ‘Tasks’ table.
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UPDATE Tasks SET AssignedTo = 2 WHERE TaskID = 1; |
Task Status Tracking
Updating the status of a task can be done by updating the ‘TaskStatus’ field.
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UPDATE Tasks SET TaskStatus = 'Completed' WHERE TaskID = 1; |
Viewing Tasks
To view tasks assigned to a user, use a simple SELECT statement joined with the Users table.
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SELECT U.UserName, T.TaskName, T.TaskDescription, T.TaskStatus FROM Tasks T INNER JOIN Users U ON T.AssignedTo = U.UserID WHERE U.UserID = 2; |
With this SQL knowledge, you can now create, assign, reassign, and track tasks in an application. The actual implementation might differ based on the specific technology stack used, but the basic SQL commands should remain the same.