Using Indexes to Reduce Blocking in Concurrent Transactions
New author Nilav Ghosh brings us a performance tuning article to help your queries run better. This article examines how indexes can help reduce blocking.
Explanation of SQL Server IO and Latches
This article is a whistle-stop tour of my exploration of latches; their different types, their purposes, why they are required and where they fit into the SQL database engine, in the hope it will be interesting and useful to you.
Time for Learning
Today Steve Jones talks about the time required to increase your skills and debates about what time you need to invest each year to gain knowledge.
What is your default database set to?
Some people set their default database to the database they use most often. This can cause issues when a restore fails.
Window Functions in SQL
SQL's windowing functions are surprisingly versatile, and allow us to cut out all those self-joins and explicit cursors. Joe Celko explains how they are used, and shows a few tricks such as calculating deltas in a time series, and filling in gaps.
Runtime Code
Do you test your code? What about code that is generated by applications and executed at runtime. Is that tested well? Steve Jones wonders.
Overview of the Different In-Memory OLTP Index Types
In-Memory table or what Microsoft refers to as In-Memory OLTP, or Hekaton is a new type of table is available with SQL Server 2014. In this article Greg Larsen discusses the different types of indexes you can place on your In-Memory tables, and how those indexes support different search criteria.
SQL in the City Seminar Portland 2013 –Deployment Stairway
Join Red Gate for a free seminar on November 15 (the day before SQL Saturday Oregon). Steve Jones and Grant Fritchey, SQL Server MVPs, will present best practices for SQL Server version control, continuous integration and deployment, in addition to showing Red Gate tools in action.
Using the SQL Server Distributed Replay feature
This tip will guide you through a simple example to illustrate how you can use the SQL Server Distributed Replay feature to replay a simple SQL Server trace file that contained two sessions executing statements concurrently.
Cloud Storage. Make it the present instead of the future.
In which Phil Factor wonders why all the different cloud storage offerings are so different, sparse in their features, crude and incompatible
Blogs
Who’s the Winningest Coach (with AI Help)
By Steve Jones
I was listening to the radio the other day and the hosts were discussing...
Learning from Mistakes: T-SQL Tuesday #194
By Steve Jones
We’re a week late, once again my fault. I was still coming out of...
Stupid Things I Did With AI: ASCII Art
By Steve Jones
I ran across this article recently (https://www.gatesnotes.com/meet-bill/source-code/reader/microsoft-original-source-code) and it has a great opening piece...
Forums
Basic Always On Groups Randomly Stop Synchronizing
In one of my environments I have 3 pairs of Always On SQL 2022...
Learning From Breakage
Comments posted to this topic are about the item Learning From Breakage
Python in Action to Auto-Generate an Optimized PostgreSQL Index Strategy
Comments posted to this topic are about the item Python in Action to Auto-Generate...
Question of the Day
Adding and Dropping Columns I
I have this table in my SQL Server 2022 database:
CREATE TABLE [dbo].[CityList] ( [CityNameID] [int] NOT NULL IDENTITY(1, 1), [CityName] [varchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ) ON [PRIMARY] GOI decide to add two new columns for the StateProvince and Country. What code should I use? See possible answers