运行总计到上一行，并且期初余额到第一行SQL

Question

我必须准备总帐报告

    masster.Account_Id,masster.Account_Type,masster.Account_Description,@Opening_Ball as openingbal, s.Referencenumber as Referencenumber ,s.Entrydate,isnull( s.debit,0) as Debit,isnull( s.credit,0) as Credit,case 

 when masster.Account_Type='Accumulated Depreciation' and row_number() over (partition by masster.Account_Id order by masster.Account_Id)=1 THEN   SUM(@Opening_Ball+isnull(s.Credit,0) - isnull(s.debit,0)) OVER (ORDER BY s.Entrydate
                                      ROWS BETWEEN UNBOUNDED PRECEDING
                                               AND CURRENT ROW   ) 
                                               when masster.Account_Type='Accumulated Depreciation' and row_number() over (partition by masster.Account_Id order by masster.Account_Id)<>1 THEN   SUM(isnull(s.Credit,0) - isnull(s.debit,0)) OVER (ORDER BY s.Entrydate
                                      ROWS BETWEEN UNBOUNDED PRECEDING
                                               AND CURRENT ROW) 
       when masster.Account_Type='Accounts Payable' and row_number() over (partition by masster.Account_Id order by masster.Account_Id)=1 THEN   SUM(@Opening_Ball+isnull(s.Credit,0) - isnull(s.debit,0)) OVER (ORDER BY s.Entrydate
                                      ROWS BETWEEN UNBOUNDED PRECEDING
                                               AND CURRENT ROW) 
                                                when masster.Account_Type='Accounts Payable' and row_number() over (partition by masster.Account_Id order by masster.Account_Id)<>1  THEN   SUM(isnull(s.Credit,0) - isnull(s.debit,0)) OVER (ORDER BY s.Entrydate
                                      ROWS BETWEEN UNBOUNDED PRECEDING
                                               AND CURRENT ROW) 
    when 
    else 
    case 
    when row_number() over (partition by masster.Account_Id order by masster.Account_Id) = 1 then 

    SUM(@Opening_Ball+isnull(s.debit,0) - isnull(s.Credit,0)) OVER (ORDER BY s.Entrydate
                                      ROWS BETWEEN UNBOUNDED PRECEDING
                                               AND CURRENT ROW    ) 
                                               else
    SUM(isnull(s.debit,0) - isnull(s.Credit,0)) OVER (ORDER BY s.Entrydate
                                      ROWS BETWEEN UNBOUNDED PRECEDING
                                               AND CURRENT ROW    ) end    end    AS Balance

    FROM sometables

输出应为

期初余额：50

id   debit  credit  Balance     
1    10      0           60     
2    0       20          40     
3    60      0          100 

总计70 20 50

但是现在结果是期初余额未与其他行正确添加

期初余额：50

 id  debit  credit  Balance
    1     10     0         60
    2     0      20        90
    3     60      0        200
    toal  70      20       50