TSQL Summary by account, what is the cleanest way to approach this? - tsql

Question

I am trying to total by account, the expenses & income per account. There are multiples of both the income & the expenses per account. I am struggling with this as am still learning SQL and thought that someone else likely has already addressed this? I sure would appreciate the help!
I know that this SQL server code is not correct but it at least gives a bit clearer picture of what I am attempting to do.
IF(SELECT(OBJECT_ID('TEMPDB..#Total'))) IS NOT NULL DROP TABLE #Total
declare #Expenses decimal(13,2),
#income decimal(13,2)
set #expenses = sum(EXP_CHILD_CARE_AMOUNT)
+ sum(EXP_FOOD_AMOUNT)
+ sum(EXP_LIFE_INSURANCE_AMOUNT)
+ sum(EXP_TRANSPORTATION_AMOUNT)
+ sum(EXP_TUITION_AMOUNT)
+ sum(EXP_USER_2_AMOUNT)
+ sum(EXP_USER_3_AMOUNT)
+ sum(EXP_UTILITIES_AMOUNT)
set #income = (sum(NET_PAY_AMOUNT)
+ sum(OTHER_INCOME_AMOUNT)
SELECT F.LOAN_NUMBER, #Income, #Expenses
INTO #Total
FROM OPENQUERY(SvrLink, '
SELECT F.Account, #Income, #Expenses
FROM finances F
inner join account a on(a.Account = f.Account)
where a.balance > 0
FETCH ONLY WITH UR ')

Answer 1

...ok, assuming that some fields are grouped into the same table (if not you'll just have to write the joins), you just need 1 query. (I wish all languages were as concise...)
#AccountId is your desired account id.
SELECT l.LOAN_NUMBER, l.AccountId,
(SELECT sum(EXP_CHILD_CARE_AMOUNT) + sum(EXP_FOOD_AMOUNT) +
sum(EXP_LIFE_INSURANCE_AMOUNT) + sum(EXP_TRANSPORTATION_AMOUNT) +
sum(EXP_TUITION_AMOUNT) + sum(EXP_USER_2_AMOUNT) +
sum(EXP_USER_3_AMOUNT) + sum(EXP_UTILITIES_AMOUNT)
as ExpenseTotal FROM Expenses_Guessing_The_Table_Name
WHERE AccountId = #AccountId) as ExpenseTotal,
(SELECT sum(NET_PAY_AMOUNT) + sum(OTHER_INCOME_AMOUNT) as IncomeTotal
FROM Income_Guessing_The_Table_Name
WHERE AccountId = #AccountId) as IncomeTotal
FROM Loans l
WHERE l.AccountId = #AccountId AND l.Balance > 0