sql-server - sql server数据插入，第一行期末余额应该是下一行期初余额

Question

我在以这种方式插入数据时遇到了问题。

如何使用存储过程以这种方式插入数据。

INSERT INTO [dbo].tbl_Transaction                
        (                
             [FK_GameID] ,            
             [SpotID] ,            
             TransactionReason ,            
             TransactionType ,            
             TransactionAmount
             --PrevAmountBalance,
            -- CurrentBalance
        )                
       SELECT tblTransaction.Row.value('@FK_GameID','BIGINT'),            
       tblTransaction.Row.value('@SpotID','SMALLINT'),            
       tblTransaction.Row.value('@TransactionReason','SMALLINT'),            
       tblTransaction.Row.value('@TransactionType','Varchar(50)'),            
       tblTransaction.Row.value('@TransactionAmount','MONEY')
       --@OpeningBalance,
       -- (@OpeningBalance-tblTransaction.Row.value('@TransactionAmount','MONEY'))
       FROM @TransactionTable.nodes('/row') AS tblTransaction(Row)   

Answer 1

create table #balances(
id int not null identity(1,1),
opening_balance int, 
closing_balance int, 
t_type varchar(50))

启动表（如果你没有这个，你将不得不处理 NULL）

insert into #balances values (100 , 100 , 'start')

询问：

insert into #balances values(
(select top 1 closing_balance from #balances order by id desc),
300, --new value
'credit')