Dwain Camps

Dwain Camps is a seasoned project manager specializing in business solutions delivered through software development and implementation. Because performance often takes the forefront when it comes to customer satisfaction in software applications, his technical focus is in high-performance T-SQL.

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Demo for Parameter Sniffing and Memory Grant Feedback

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Disclaimer: The following is built with Claude Code. Just need to justify my $100/mo...

My Social Media Rules

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I developed these rules a while back, before COVID. I had a period of...

Why Use TRY_PARSE(): #SQLNewBlogger

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Someone asked why I would use TRY_PARSE after I posted a question at SQL...

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Partitioning a table with TEXTIMAGE_ON option

By Brandie Tarvin

I have a table that ends in ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]. I'm about to...

OUTER APPLY Fundamentals: Part 2

By Imran2629

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Building Great Software

By Steve Jones - SSC Editor

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Question of the Day

The Range of Customers

I have this data in the OrderHeader table in a SQL Server 2025 database (ordered by CustomerID ASC): 

orderid orderdate               customerid complete
3       2025-05-10 00:00:00.0002          1
21      2024-01-10 00:00:00.0003          1
15      2023-10-28 00:00:00.0004   1
13      2025-03-08 00:00:00.0006          1
11      2024-04-02 00:00:00.0007          1
If I run this query, how many rows are returned? 
SELECT *
 from dbo.OrderHeader
 where customerid between 3 and '6'

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