How LAG compares to other techniques
LAG pulls a column from another row without a self-join. In this article, Kathi Kellenberger shows how LAG compares to other techniques
2021-09-24
databases
SQL Server identity column
The SQL Server identity column is used to populate a column with incrementing numbers on insert. In this article, Greg Larsen explains how it works.
2021-09-13
Oracle sequences – 12c features including “identity”
Oracle added several enhancements to the sequence object in version 12c, including an “identity” column feature. Jonathan Lewis explains how to work with these new features.
2021-09-10
Testing SQL Server Databases Using SQL Test
During database development, as well as writing SQL, you must also write the tests that prove your SQL code meets all the requirements. The article will help you get started with database testing for your SQL Server databases, by creating and running unit tests against them, as well as static code analysis tests.
2021-08-20
SQL Compilations/sec is not what you think it is
SQL Server perfmon counters provide a wealth of information about performance. In this article, Fabiano Amorim shows how current wisdom about one counter, SQL Compilations/sec, can sometimes be misleading.
2021-08-20
Collecting SQL Server performance monitor data
SQL Server provides information for troubleshooting performance. Ed Pollack demonstrates collecting SQL Server performance monitor data.
2021-08-11
How to enable SQL Server trace flags
DBAs can control many aspects of SQL Server’s behavior with trace flags. In this article, Robert Sheldon explains how to enable SQL Server trace flags.
2021-07-30
Managing SQL Server transaction log size
The SQL Server transaction log must be managed to keep a database running and performing well. In this article, Greg Larsen explains how to manage the transaction log size.
2021-07-23
A Quick Diff Checker for SQL Server Databases
Compare the schemas of two SQL Server databases using SQL Compare command line then quickly produce a diff report showing you immediately which tables, views and functions have changed.
2021-07-02
SQL Server performance tuning: Nine best practices
SQL Server performance tuning can seem overwhelming when you don’t know where to start. In this article Robert Sheldon explains 9 best practices for performance tuning.
2021-06-16
Blogs
The Book of Redgate:A Prehistory
By Steve Jones
I’ve covered the values in a number of previous posts on the Book of...
Evidence-bound: what AgentDBA will and won’t link
By Arun Sirpal
When the evidence names the database, it says so. When it doesn’t, it stops....
Prep data for AI vs. Fabric Data Agent Instructions: What Goes Where?
By James Serra
Making Data AI-Ready, Part 3 (This is the final article in a three-part series...
Forums
Four Rules for Adding AI Without Breaking What Already Works
Comments posted to this topic are about the item Four Rules for Adding AI...
SQL Server 2025 section missing?
Hello, the title says it all. Is the SQL Server 2025 section missing?
A design question in a parent child relationship
I am not sure which is the best way to proceed. I have parent...
Question of the Day
Hyperscale Replicas III
In an Azure SQL Database Hyperscale Edition, how many named replicas can be configured?
See possible answers