SQL Server Security – Fixed server and database roles
Security roles can simplify permissions in SQL Server. In this article, Greg Larsen explains fixed server and database roles.
2021-04-22
Articles
Batch Processing using Flyway
How to create a batch file that executes any number of database migration tasks across a range of servers and databases, using Flyway.
2021-04-21
Common Data Transformations in Power Query
In this article we walk through an example of using Power Query to transform source data that can be used in a Power BI report.
2021-04-21
Installing Docker Desktop on Mac
Introduction This article will help you install the Docker Desktop for Mac. Before we show that, let us start by understanding what the Docker Desktop software can do for you. To understand Docker, we need to understand what a container is. If you remember a few years ago, the only way of deploying application code […]
2021-04-20
1,470 reads
Recover Deleted TDE Key for Azure SQL Database
In this article we look at the steps to recover a deleted TDE key that is being used by Azure SQL Database for database encryption.
2021-04-20
367 reads
A data transformation problem in SQL and Scala: Dovetailing declarative solutions Part II
In this article, Shel Burkow uses the SQL execution plan from the previous article to write a program in Scala.
2021-04-20
Navigating Trees With CTE
Introduction This article shows how common table expressions (CTE) in SQL Server are naturally suited for navigating trees, such as finding its longest path, or diameter. Recall that a tree is an undirected graph where unique paths exist between any two nodes (i.e. vertices). Any node may be selected as its top node, with its […]
2021-04-19
7,682 reads
SQL Window Functions in SQL Server, Oracle and PostgreSQL
In this article we look at using Window Functions in SQL Server, Oracle and PostgreSQL to see the differences and similarities of the syntax.
2021-04-19
Tell us about how you monitor your databases
The 2021 State of Database Monitoring survey is now open, and we want to know how you’re currently tackling your server, instance, and database monitoring. By taking part, you’ll contribute to the sole industry-wide report on database monitoring, and provide insights into how SQL Server professionals manage their estates and what challenges they face. Plus, you’ll receive an advanced copy of the report and entry to a prize draw to win a $500 Amazon voucher.
2021-04-19
An Efficient Set-based Solution for Islands and Gaps
After reading a recent article on identifying islands and gaps in sequential numbers, one of our readers was inspired to develop a more efficient solution for fragmented data. New Author Goce Smilevski brings us his solution and supporting data to show how this can be done better.
2021-04-16 (first published: 2004-11-22)
11,161 reads
Blogs
Taming Database Challenges: Insights from Redgate Keynote
By Chris Yates
I am excited to cover the Microsoft Keynote on Day 2: Redgate Keynote: Simplifying...
AI Innovation in Microsoft Keynote
By Chris Yates
I’m thrilled to be covering the Microsoft Keynote: Fuel AI Innovation with Azure Databases on Day...
Benefits of Migrating from Azure Synapse Analytics to Microsoft Fabric
By James Serra
Many customers ask me about the advantages of moving from Azure Synapse Analytics to...
Forums
Unencrypted connections in Always on Availability Group
Hi, In my Always On Availability environment, I am seeing two encrypt_option values as...
Error loading multiple CSV files in SSIS
Hi everyone I have a bunch of CSV files that I need to bulk...
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 2024-04-07I 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.CustomerNameSee possible answers