Question

I want to create Sql script to see how many task open or on-hold only for logged in user who assigned
to task
result
HelloWorld1(0)
HelloWorld2(2)
HelloWorld3(1)
HelloWorld4(5)

SELECT Projects.projectID,
    Projects.projectName + ' ' + '(' + CONVERT(NVARCHAR, COUNT(Projects_tasks.taskID)) + ')' AS Project
  FROM Projects
  LEFT JOIN Projects_tasks ON Projects.projectID = Projects_tasks.projectID
 INNER JOIN Users_projects ON Projects.projectID = Users_projects.projectID
 INNER JOIN Tasks ON Projects_tasks.taskID = Tasks.taskID
 INNER JOIN Users_Tasks ON Tasks.taskID = Users_Tasks.TaskID
 WHERE Users_Tasks.userID = @userID
   AND Tasks.status = 'Open'
   AND Tasks.status = 'Onhold'
 GROUP BY Users_projects.userID,
          Projects.projectName,
          Projects.projectID,
          Users_Tasks.userID

Answer 1

You have:

AND (Tasks.status = 'Open' AND Tasks.status = 'Onhold') 

Which can’t be true; a Task can’t have both values at the same time. You want:

AND (Tasks.status = 'Open' OR Tasks.status = 'Onhold') 

Better yet, use IN:

AND (Tasks.status IN ('Open', 'Onhold') )