TSQL

SQLServerCentral Article

Getting started with the SQL MERGE statement

  • Article

This article is focused on beginners who have already started writing SQL queries and are now diving deep towards more data processing and complex queries in SQL. When we talk about data processing, an important concept that comes to our mind is performing ETL workloads to a data warehouse. ETL is a very complex topic […]

(1)

You rated this post out of 5. Change rating

2021-01-26

4,896 reads

SQLServerCentral Article

Collections

  • Article

Problem The usage of a collection of integers in some scenarios is considered to be optimal because of the overhead involved by the creation of another user table used just to store numbers, which is the most common solution. What are collections of integers? They are lists or arrays consisting of integers. The number of […]

(8)

You rated this post out of 5. Change rating

2020-02-13

6,014 reads

Blogs

Excellent article on securing msdb

By

Fabiano Amorim has written an excellent article at Simple Talk on securing msdb. Here's...

T-SQL Tuesday #201: Temp Tables

By

This month we have a new host, which I am grateful for. So many...

When Do You Reach For A #temp Table?

By

I needed to do some research because there is more to #temp tables than...

Read the latest Blogs

Forums

OUTER APPLY Fundamentals: Part 2

By Imran2629

Comments posted to this topic are about the item OUTER APPLY Fundamentals: Part 2

Building Great Software

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Building Great Software

The Range of Customers

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The Range of Customers

Visit the forum

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'

See possible answers