Andy Leonard

  • Interests: SQL Server, Integration Services, Managing Technical Teams, Faith, Family, Farming.

Stairway to Integration Services

Updating Rows in Incremental Loads – Level 4 of the Stairway to Integration Services

Part four of this stairway series examines the process of updating the data in an existing table in a load. MVP Andy Leonard talks about the way in which packages can handle changes in a repeatable fashion.

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2019-02-27 (first published: )

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Question of the Day

The Empty Aggregate

I have this table in a SQL Server 2025 database:

CREATE TABLE [dbo].[CustomerOrder]
(
[OrderID] [int] NULL,
[CustomerID] [int] NULL,
[total] [money] NULL
) ON [PRIMARY]
GO
What is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
       COUNT(total) AS count
FROM dbo.CustomerOrder;



See possible answers