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Load Multiple Excel Files and Worksheets with SSIS

I was asked to load multiple Excel files, each with multiple Excel worksheets. I found a very easy way to complete this in SSIS using a Script Task. This article will explain how I did this. For this example, I have two Excel files, File1.xlsx and File2.xlsx, as shown here: Each Excel File has three […]

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2021-04-15

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SQL Monitor v11.1 now supports Azure SQL Managed Instances

Migration to the cloud and PaaS solutions has accelerated in the past years, and many organizations now manage hybrid estates. To reflect this, the latest release of SQL Monitor adds Azure SQL Managed Instances to its list of supported cloud platforms. This article explains how to monitor performance and activity for Azure SQL Managed Instances using SQL Monitor, with advice on monitoring hybrid estates and migrating from on-prem to Azure SQL Managed Instance.

2021-04-15

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Question of the Day

Using Outer Joins

I have this data in a SQL Server 2019 database:

Customer table
CustomerID CustomerName
1          Steve
2          Andy
3          Brian
4          Allen
5          Devin
6          Sally

OrderHeader table
OrderID CustomerID OrderDate
1       1          2024-02-01
2       1          2024-03-01
3       3          2024-04-01
4       4          2024-05-01
6       4          2024-05-01
7       3          2024-06-07
8       2          2024-04-07
I want a list of all customers and their order counts for a period of time, including zero orders. If I run this query, how many rows are returned?
SELECT 
  c.CustomerName, COUNT(oh.OrderID)
 FROM dbo.Customer AS c
LEFT JOIN dbo.OrderHeader AS oh ON oh.CustomerID = c.CustomerID
WHERE oh.Orderdate > '2024/04/01'
GROUP BY c.CustomerName

See possible answers