Consulta de inserção do SQL Server na tabela de fatos

Question

Ok, então tenho esse problema com minha tabela de fatos.Preciso que ele seja preenchido automaticamente quando um novo dado for inserido em todas as outras tabelas do banco de dados que possuam uma chave estrangeira na minha Tabela de Fatos.No meu procedimento armazenado, compilei todas as instruções de inserção que possuo e no final, como também quero atualizar minha tabela de fatos, coloco esta consulta:

INSERT INTO Fact (AccountID, ExpenseID, DateTimeID, InventoryID)
VALUES (@AccountID, 
        (SELECT ExpenseID FROM Expenses WHERE WaterBill = @WaterBill AND ElectricBill = @ElectricBill AND OfficeRent = @OfficeRent,
        SELECT DateTimeID FROM DateTime WHERE MonthNo = @MonthNo AND Date = @Date AND Year = @Year AND Time = @Time AND Day = @Day AND DayNo = @DayNo,
        SELECT InventoryID FROM Inventory WHERE ProductInID = @ProductInID AND ProductOutID = @ProductOutID)

No entanto, recebo um erro com a seguinte mensagem:

Subqueries are not allowed in this context. Only scalar expressions are allowed.

Alguém pode me ajudar, por favor?Muito obrigado.:)

MEU PROCEDIMENTO COMPLETO:

    ALTER PROCEDURE [dbo].[ExpenseListInsert]
    @AccountID char(6),
    @ExpenseID int,
    @DateTimeID int,
    @InventoryID int,
    @WaterBill decimal(19, 4),
    @ElectricBill decimal(19, 4),
    @OfficeRent decimal(19, 4),
    @Miscellaneous decimal(19, 4),
    @ProductsExpense decimal(19, 4),
    @Subtotal decimal(19, 4),
    @ProductInID int,
    @ProductOutID int,
    @Product30001 int,
    @Product30002 int,
    @Product30003 int,
    @MonthNo int,
    @Date int,
    @Year int,
    @Time char(11),
    @Day char(10),
    @DayNo int
AS
    INSERT INTO Expenses (WaterBill, ElectricBill, OfficeRent, Miscellaneous, ProductsExpense, Subtotal)
    VALUES(@WaterBill, @ElectricBill, @OfficeRent, @Miscellaneous, @ProductsExpense, @Subtotal)

    INSERT INTO ProductIn (ProductInID, Product30001, Product30002, Product30003)
    VALUES(@ProductInID, @Product30001, @Product30002, @Product30003)

    INSERT INTO ProductOut (ProductOutID, Product30001, Product30002, Product30003)
    VALUES(@ProductOutID, '0', '0', '0')

    INSERT INTO Inventory (ProductInID, ProductOutID)
    VALUES (@ProductInID, @ProductOutID) 

    INSERT INTO DateTime (MonthNo, Date, Year, Time, Day, DayNo)
    VALUES (@MonthNo, @Date, @Year, @Time, @Day, @DayNo)

    SELECT @ExpenseID = ExpenseID FROM Expenses WHERE WaterBill = @WaterBill AND ElectricBill = @ElectricBill AND OfficeRent = @OfficeRent

    SELECT @DateTimeID = DateTimeID FROM DateTime WHERE MonthNo = @MonthNo AND Date = @Date AND Year = @Year AND Time = @Time AND Day = @Day AND DayNo = @DayNo

    SELECT @InventoryID = InventoryID FROM Inventory WHERE ProductInID = @ProductInID AND ProductOutID = @ProductOutID

    INSERT INTO Fact (AccountID, ExpenseID, DateTimeID, InventoryID)
    VALUES (@AccountID, @ExpenseID, @DateTimeID, @InventoryID)
RETURN

Answer 1

Supondo que cada subconsulta possa retornar apenas um registro, isso deve funcionar

DECLARE @ExpenseID int, @DateTimeID int, @InventoryID int


SELECT @ExpenseID= ExpenseID FROM Expenses WHERE WaterBill = @WaterBill AND ElectricBill = @ElectricBill AND OfficeRent = @OfficeRent

SELECT @DateTimeID = DateTimeID FROM DateTime WHERE MonthNo = @MonthNo AND Date = @Date AND Year = @Year AND Time = @Time AND Day = @Day AND DayNo = @DayNo

SELECT @InventoryID = InventoryID FROM Inventory WHERE ProductInID = @ProductInID AND ProductOutID = @ProductOutID

INSERT INTO Fact (AccountID, ExpenseID, DateTimeID, InventoryID)
VALUES (@AccountID, @ExpenseID, @DateTimeID, @InventoryID)

Answer 2

Você não pode fazer subconsultas com um INSERT vanilla, você precisa fazer um INSERT...SELECT:

INSERT INTO [Fact] (AccountID, ExpenseID, DateTimeID, InventoryID)
SELECT @AccountID, 
       (SELECT ExpenseID FROM [Expenses] WHERE WaterBill = @WaterBill AND ElectricBill = @ElectricBill AND OfficeRent = @OfficeRent),
       (SELECT DateTimeID FROM [DateTime] WHERE MonthNo = @MonthNo AND [Date] = @Date AND [Year] = @Year AND [Time] = @Time AND [Day] = @Day AND DayNo = @DayNo),
       (SELECT InventoryID FROM Inventory WHERE ProductInID = @ProductInID AND ProductOutID = @ProductOutID)

Eu também examinaria o plano de execução para possíveis gargalos de desempenho e também examinaria os índices nas tabelas Despesa, DataHora e Inventário.

Answer 3

Mude sua consulta para esta:

INSERT INTO Fact (AccountID, ExpenseID, DateTimeID, InventoryID) 
SELECT @AccountID,  
    (SELECT ExpenseID FROM Expenses WHERE WaterBill = @WaterBill AND ElectricBill = @ElectricBill AND OfficeRent = @OfficeRent), 
    (SELECT DateTimeID FROM DateTime WHERE MonthNo = @MonthNo AND Date = @Date AND Year = @Year AND Time = @Time AND Day = @Day AND DayNo = @DayNo), 
    (SELECT InventoryID FROM Inventory WHERE ProductInID = @ProductInID AND ProductOutID = @ProductOutID)