This article covers a few, more advanced topics about the usage of clustered indexes in SQL Server. Not only will I try to convince you of the absolute necessity of using clustered indexes, I'll also give you some tips on how to use them in a not so obvious context.
the January magazine is being printed right now and should be mailed out early next week. Read the editorial and see how you can get you e-copy now!
Access can be a very quick and easy to use tool for working with SQL Server data and for quick and dirty projects, it might be the best tool. But there can be performance issues at times and Andy Warren digs into some of these based on some analysis of what Access does behind the scenes.
In this sample chapter, you'll get a full tutorial on how to create an end-to-end SSIS package including transformation, looping and archiving of files.
In the days when I contentedly cut procedural code, I was puzzled by the visceral rages of the database specialists; they were like the ship’s cook occasionally going berserk with a meat-cleaver. After I switched to database work, I realized why.”
Continuing with his series on working with SQL Server, Andy Warren looks at how long it can take to start or restart the services and why.
This process uses ITWIZ.EXE the command line version of the Index Tuning Wizard. SQL trace file information is stored in a table on production then transferred to a non-production server. ITWIZ is then run against the transferred trace data resulting in a UNICODE SQL script. This script has index creation and deletion information as well as script parameters in a remarks section.
When programming in T-SQL, the impact of NULL values can be severe in many cases, especially aggregates. New Author Peter Ward brings us a great explanation on how NULLs can impact things like SUM operations.
This article is the third in a series of four where I share my findings on baselining, monitoring, stress testing and performance tuning. It builds on the foundations of my previous articles on baselining and monitoring.
A while back I wrote a quick post on setting up key mappings in...
By Steve Jones
In 100 years a lot of what we take to be true now will...
At Saturday the 21st of February I’m presenting an introduction to dimensional modelling at...
Hi, i'm running vs2022. I'm trying out a c# script that i'd like to...
Comments posted to this topic are about the item Missing the Jaro Winkler Distance
I upgraded a SQL Server 2019 instance to SQL Server 2025. I wanted to test the fuzzy string search functions. I run this code:
SELECT JARO_WINKLER_DISTANCE('tim', 'tom')
I get this error message:Msg 195, Level 15, State 10, Line 1 'JARO_WINKLER_DISTANCE' is not a recognized built-in function name.What is wrong? See possible answers