Intro In 2008 I wrote an article called “Scope: The drastic caveat with Logon Triggers.” Ever since, we have been using Event Notifications to capture logins for our SQL Server instances. Issues were only very rare, usually on servers that had an extreme load of many connections. In such a case, we stopped this continuous monitoring and […]
2021-10-29
4,212 reads
Easily push SQL Server data to Salesforce using the CData SSIS Components. This example uses an SSIS workflow to either insert new records into Salesforce or update existing records with data from a SQL Server database.
2021-10-29
559 reads
Not a week goes by without news of a new cyberattack. In this article, Robert Sheldon explains the cybersecurity threats in today’s world.
2021-10-29
With Amazon DocumentDB developers and DBAs can balance availability, read scalability, and latency with five pre-configured consistency levels. The data in an Amazon DocumentDB cluster is accessible just like a MongoDB 3.6 cluster. The CData Software Drivers for MongoDB provide a SQL-like interface to MongoDB data through standards-based drivers. This allows users to see their data in the […]
2021-10-27
441 reads
A key finding from Redgate’s recent State of Database Monitoring Survey of over 2,500 IT professionals was that 79% of respondents reported using either a third-party or in-house monitoring tool. It’s notable because it’s an increase of 10 percentage points from the same survey last year. But when should you use an in-house tool, and when should you take the plunge and invest in a third-party monitoring tool like SQL Monitor?
2021-10-27
Database objects often have references to external databases which makes continuous integration problematic. In this article Liz Baron and Sebastian Meine demonstrate a solution.
2021-10-27
I have worked in more than one regulated industry, and since the banking crisis of 2008, I have witnessed a sea change in the approach to regulation. The UK Financial Services Authority (FSA) was seen to be a toothless tiger. The UK government replaced the FSA with two separate bodies, each with its own more […]
2021-10-25
1,522 reads
Although it is easy to get started with Flyway, there are times when real-life can trip you up. Discover the fastest ways to restore the previous version of the database, to recover from a failed Flyway migration that leaves the database in an indeterminate state, and then how to adapt your database development process to avoid these problems.
2021-10-25
In this article we look at how to use string functions to concatenate, replace, trim and get substrings in SQL Server, Oracle and PostgreSQL.
2021-10-25
Big data plays a key role in promoting both manufacturing and scientific development through industrial digitization and emerging research. Integrating big data demands scalable tools for enabling not only big data ingestion and curation but also efficient large-scale exploration and discovery. There is a solution to scale up to large volumes of data distributed across multiple […]
2021-10-22
256 reads
By Brian Kelley
The last data centric conference I attended was the PASS Summit in 2019. A...
How can you achieve good enough without compromising the process/product? In the world of...
By Patrick
One of my customers recently wanted to rename each of the SQL audit files...
Comments posted to this topic are about the item What's New for the Microsoft...
Comments posted to this topic are about the item 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