count total paired members of the tree by sqlquery

[Ashumeerut]

I am having a table tbltestingtree representing the tree structure, Member_Id is the id of the member, Parent_Id represent the Parentid of that member , Lefts and Rights tells us that the member is attached to the left or right of the Parent.
**My problem is that i have to make a sqlquery that counts the total number of pared members for any particular parent ,**

Ex- currently member with id 1 has 3 pairs with id 2,3 and 4
currently member with id 2 has 1 pair with id 4

      Member_Id     Parent_Id      Lefts         Rights
         1               Null       Null          Null  
         2                1          1            Null
         3                1         Null           1
         4                2          1            Null
         5                2         Null           1
         6                3          1            Null
         7                3         Null           1
         8                4          1            Null
         9                4         Null           1

[Rabbit]

I don't understand why you're counting 4 in your results, its parent id is not 1.

[Ashumeerut]

the answer is here :

http://stackoverflow.com/questions/19158116/count-total-paired-members-of-the-tree-by-sqlquery