Flyway with MariaDB for Those of a Nervous Disposition
This article from Phil Factor will get you up and running quickly with Flyway migrations on MariaDB or MySQL databases, from PowerShell.
2021-10-22
Articles
Working with SQL Server identity columns
SQL Server identity columns are easy to add to a table, but you must understand how they work to use them effectively. In this article, Greg Larsen explains the nuances of SQL Server identity columns.
2021-10-22
How to Enable and Disable Full Text Search for SQL Server Databases
Learn how to enable or disable full text search for a specific database on a SQL Server instance where the Full Text Search components have been setup.
2021-10-20
Troy Hunt talks Security and compliance in estate monitoring
Troy Hunt joins Steve Jones to discuss the critical and complex role of monitoring in organizational data security and compliance.
2021-10-20
Connect to PostgreSQL as an External Data Source using PolyBase
PolyBase is a new feature of SQL Server that allows you to connect to relational and non-relational data. You can run queries on any external data sources you might have, such as Oracle, PostgreSQL, Salesforce, MongoDB, Hadoop, etc. When paired with the CData ODBC Driver for PostgreSQL, you get access to your PostgreSQL data directly […]
2021-10-18
2,367 reads
What Is a Cost-Based Optimizer?
When you execute a query, the database server has to figure a lot of things out. For even the simplest queries, there are usually several possible ways to get the job done.
2021-10-18
Model and Log Trend Reversals for Time Series Data in SQL Server
This tip demonstrates models for detecting the start of periods of rising or falling financial securities prices based on exponential moving averages. The demonstration is simplified because it relies on a log to keep track of time series values as well as exponential moving averages with different period lengths.
2021-10-15
Monitoring Large Estates at BMW
BMW have been monitoring their SQL Server estate for more than 7 years, but with evolving technology and circumstances, monitoring also needs to change and grow. Join Tony Maddonna in conversation with Redgate's James King, to discover how BMW are handling the challenges.
2021-10-15
Database technology trends
Big data can be risky, which is why you need great estate management. Join Matt Schmelzer, Data Systems and Automation - IT, and Jonathan Holck, IT Associate, from Artisan Partners in discussion with Microsoft MVP Grant Fritchey to learn how they implemented a successful infrastructure and what tools they need to support their growing estate.
2021-10-13
SSRS IIF, Switch and Choose Functions for Dynamic and Appealing Reports
Learn how to use IIF, Switch and Choose logical functions in SSRS reports to make your reports more dynamic and more appealing to report users.
2021-10-13
Blogs
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...
PASS Summit 2024 – A Very Different World
By Brian Kelley
The last data centric conference I attended was the PASS Summit in 2019. A...
Forums
What's New for the Microsoft Data Platform
Comments posted to this topic are about the item What's New for the Microsoft...
Using Outer Joins
Comments posted to this topic are about the item Using Outer Joins
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