Question

i have 3 tables

login – user_id, username

project – project_id, project_name

task – task_id, project_id, task_giver, task_receiver, task_content

*where task_giver and task_receiver has the user_id from login table*

MY QUERY :

SELECT login.username, project.project_name, tasks.task_content, tasks.task_giver
  FROM tasks
  JOIN login ON login.user_id = tasks.task_receiver 
  JOIN project ON tasks.project_id = project.project_id
 ;

But I am not getting the task_givers name getting only id.
How can I get his name?

Answer 1

JOIN the login table one more time like so:

SELECT 
  receivers.username 'Task receiver',
  givers.username 'Task giver', 
  p.project_name, 
  t.task_content
FROM tasks t
INNER JOIN login   receivers ON receivers.user_id = t.task_receiver 
INNER JOIN login   givers    ON givers.user_id    = t.task_giver
INNER JOIN project p         ON t.project_id      = p.project_id

SQL Fiddle Demo with some sample data