At our financial company, we have different OLTP transactions for customers. We have a transaction table (debits, credits) and balance table. We will only have 1000 transactions per month.
What is the best way to have account balance table?
1) One person wanted to use an indexed view, since we have relatively static data.
2) I want to calculate account balance right in sql code. I did not want to deal with issue of queries sometimes not using indexed view in execution plans, deadlocks during update, complicated execution plans when updating/delete data etc.
Is there a correct answer for transactional databases? Any issues to watch out for using indexed views in small transactional oltp databases?
create table dbo.AccountTransaction ( AccountTransactionId int primary key identity(1,1), CustomerId int null, TransactionAmount money not null ) create table dbo.AccountBalance ( AccountBalanceId int primary key identity(1,1), CustomerId int null, BalanceAmount money null ) begin transaction insert into AccountTransaction values(@CustomerId, @TransactionAmount) update AccountBalance set BalanceAmount = BalanceAmount + TransactionAmount where CustomerId = @CustomerId end transaction
create view dbo.AccountBalanceVw with schemabinding as select customerid, sum(transactionamount) as BalanceAmount, COUNT_BIG(*) AS CountLines from dbo.AccountTransaction group by customerid create unique clustered index cx_AccountBalanceVw on AccountBalanceVw(CustomerID);
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