This is a post in the SQL Interview series. These aren’t trick or gotcha questions, they’re just questions designed to scope out a candidate’s knowledge around SQL Server and Azure SQL Database.

Section: Security Level: Advanced

Question:

You have a table named Sales.Customers that is owned by dbo. You also have a stored procedure named Sales.FindCustomers that searches the Sales.Customers table.

A user Terry is given permission to the procedure and can successfully execute the procedure.

2025-06-05

The status bar at the bottom of a query window in SQL Server Management Studio contains a wealth of information in its default configuration. The bottom left shows the connection state:

And the bottom right shows quite a bit:

In this case, it’s showing me that I’m connected to a server (local)\SQL2022; it’s running v16 of SQL Server (ie: SQL Server 2022); I’m logged on as GREG7680\Greg; my SPID (or session ID) is 88; and I’m connected to the WideWorldImporters database.

2025-06-04

One thing I loved doing as a child was building and creating things. With models, there were two types of projects:

• Models with components and instructions (like Airfix)
• Basic building materials (like Lego)

With Airfix models, the challenge was to follow the instructions to build the project, then great care required to paint and finalize the model. But there really wasn’t much creativity involved.

With basic building materials like Lego, creativity was needed to produce something that looked like (or let’s admit it often just “resembled”) whatever you were trying to build.

2025-06-03

I’ve been very lucky over the years because I haven’t needed to wear glasses. Every now and then I purchase a pair because I thought it might help with reading. Once I get them though, I find them more inconvenient than helpful and stop using them. I’ve am long-sighted in one eye and short-sighted in the other. That’s turned out to be a really useful thing in day to day life.

2025-06-02

This is a post in the SQL Interview series. These aren’t trick or gotcha questions, they’re just questions designed to scope out a candidate’s knowledge around SQL Server and Azure SQL Database.

Section: Administrator Level: Medium

Question:

You have an ETL process that loads employee details into a table named Staging.Employees. The table has the following columns:

• EmployeeID (int)
• FullName (nvarchar(100))
• LoginName (varchar(100))

The table is a heap and has no primary key.

2025-06-01

The built-in reports in SQL Server Management Studio are great but you can add your own as well. SQL Server 2005 and later have an option for Custom Reports. Let’s create a report that shows the use of deprecated data types. We’ll use a stored procedure from our free SDU Tools to do that. In SQL Server Data Tools, create a new Report Server project.

Give the project an appropriate name and location, then click Create.

2025-05-31

If you’ve worked with SQL Server (or with databases in general) for any length of time, you will have heard someone refer to Halloween protection.  It refers to a problem where update operations could inadvertently end up modifying a row more than once.

Why halloween?

The name Halloween protection comes from when the problem occurred during research on the System R project at the IBM Almaden Research Center back in 1976.

2025-05-30

Our friends at Packt are running a virtual Machine Learning Summit July 16–18.

Content looks good so far, with some great people speaking, and promising a bunch of real-world case studies. Probably the greatest value in these summits are the conversations across ML, AI, and data engineering, that are discussing future directions. It’s all virtual, and in an accessible format.

So if you are into machine learning, this could be for you.

2025-05-29

SQL Server Management Studio provides a large amount of information about databases by letting the user navigate around Object Explorer and view the properties of objects.

What I’m often surprized by though, is the number of users who haven’t ever explored the reports that are available. In another section, we’ll look at creating custom reports, but there is a wonderful set of built-in standard reports that you should explore. For example, if I right-click the WideWorldImporters database, I can see these reports:

2025-05-29

This is a post in the SQL Interview series. These aren’t trick or gotcha questions, they’re just questions designed to scope out a candidate’s knowledge around SQL Server and Azure SQL Database.

Section: Developer Level: Medium

Question:

You are creating a view in a SQL Server based data warehouse.

You need to query transactions that include a TransactionDateTime column which uses the DateTime data type. The query is as follows:

2025-05-28