T-SQL - Retrieve Task Hierarchy In Project Server

Introduction

In this article, I will explain how to get the Task Hierarchy for a specific project in Project Server via T-SQL.

Scenario

In Project Server, I have a project schedule with the summary task and subtasks, as shown below.

Based on the requirement, I would like to show the Task Hierarchy for each task in the Tasks View "[MSP_EpmTask_UserView]" for a specific project.

Steps

To get the Task Hierarchy, we will use the Recursive Queries Using Common Table Expressions, as shown below.

• Open Microsoft SQL Management Studio > Connect to the SQL Server Instance.

• Create a "New Query" and make sure that you are using the Project Database (in this article, the project database name is "ProjectWebApp").

• Get the Tasks for a specific project based on its ProjectUID from the form "[MSP_EpmTask_UserView]" View, as shown below.
  • Note. Change the ProjectUID with your ProjectUID.

    -- Get the tasks based on the Project ID  
    SELECT TOP 1000 [TaskName],TaskIsSummary,TaskIndex  
    FROM [ProjectWebApp].[dbo].[MSP_EpmTask_UserView]  
    WHERE ProjectUID = 'D2BB8AF3-FB22-E711-8193-A0481C8F7133' and TaskIndex<>0  

• As we have mentioned, we will use the Recursive Queries Using Common Table Expressions to get the Task Hierarchy as the below query.
  • Note. Change the ProjectUID with your ProjectUID.

    WITH TasksRecursive(
      ProjectUID, TaskTitle,  TaskUID, 
       TaskParentUID,  TaskName,  Level
    )    AS   (
         SELECT ProjectUID, 
      TaskName as TaskTitle, 
       TaskUID, 
       TaskParentUID, 
       CAST(
        TaskName AS NVARCHAR(MAX)
      ), 
       0   FROM dbo.MSP_EpmTask_UserView WITH(NOLOCK)    WHERE TaskIndex  <>  0   UNION ALL   SELECT UV.ProjectUID, 
      TasksRecursive.TaskTitle, 
      TasksRecursive.TaskUID, 
      UV.TaskParentUID, 
      CAST(
        UV.TaskName ASNVARCHAR(MAX)
      )   +   ' -> '   +  CAST(
        TasksRecursive.TaskName AS NVARCHAR(MAX)
      )  , 
       TasksRecursive.Level  +  1   FROM TasksRecursive   Inner JOIN dbo.MSP_EpmTask_UserView UV WITH(NOLOCK)    ON TasksRecursive.ProjectUID  =  UV.ProjectUID AND TasksRecursive.TaskParentUID  =  UV.TaskUID   WHERE TaskIsSummary  =  1 AND TasksRecursive.TaskParentUID  <>  UV.TaskParentUID  
    )    SELECT X.TaskTitle, 
       (
      select TaskName from MSP_EpmTask_UserView where TaskIndex  =  0 and ProjectUID  =   'D2BB8AF3-FB22-E711-8193-A0481C8F7133'
    )   +   ' -> '   +  X.TaskName as  'Task Hierarchy'    FROM TasksRecursive X   INNER JOIN (
      SELECT ProjectUID, 
       TaskUID, 
       MAX(Level)  as  'Level'  FROM TasksRecursive GROUP BY ProjectUID, 
       TaskUID
    )  Y   ON X.ProjectUID  =  Y.ProjectUID AND X.TaskUID  =  Y.TaskUID AND X.Level  =  Y.Level   WHERE X.ProjectUID  =   'D2BB8AF3-FB22-E711-8193-A0481C8F7133'   
    

    Run the query to get the desired result.

Applies To

• Project Server 2010 Reporting Database.
• Project Server 2013 Database.
• Project Server 2016 Content Database.

In Project Server 2016, a single database (SharePoint Content Database) holds the project data and the content.

Conclusion

In this article, I have explained how to show the Task Hierarchy for a specific project in Project Server Database using T-SQL.