Hidden RBAR: Counting with Recursive CTE's
"Counting" is essential to many high performance code techniques. SQL Server MVP, Jeff Moden, shows us how to make sure that we're "Counting" and not "Crippling" our trick-code.
2011-08-08
21,777 reads
Jeff Moden
- Interests: SQL. When Im not having fun with that, then SQL. ;-)
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
In Part 1, we learned how to make both Cross-Tabs and Pivots. In Part 2, we'll learn how to automate a very common type of Cross-Tab report and maybe learn some extra tricks on the way.
2010-04-30 (first published: 2008-12-03)
51,179 reads
Passing Parameters as (almost) 1, 2, and 3 Dimensional Arrays
It's a well known fact that there's no such thing as a true "array" in SQL Server and that you can't pass a table as a parameter... but you can get a lot closer than you think.
2010-01-08 (first published: 2008-05-22)
33,810 reads
Dissecting SQL Server Execution Plans
A review of MVP Grant Fritchey's "Dissecting Execution Plans". This is one book that you'll want on your bookshelf.
2009-12-17
5,710 reads
Hidden RBAR: Triangular Joins
Just because it looks set based, doesn't mean it is. T-SQL Crackerjack Jeff Moden takes a look at a mistake that many query writers make.
2009-01-16 (first published: 2007-12-06)
59,645 reads
More RBAR and "Tuning" UPDATEs
SQL Server expert Jeff Moden discusses a common problem seen in many update statements.
2008-03-14
12,501 reads
Solving the "Running Total" & "Ordinal Rank" Problems in SS 2k/2k5
Learn how to solve a couple of common T-SQL issues with MVP Jeff Moden.
2008-01-31
17,726 reads
Performance Tuning: Concatenation Functions and Some Tuning Myths
Rumor has it that Concatenation functions have gotten the nasty reputation of being "performance hogs". Here's why that's not true.
2008-01-01
22,121 reads
Calculating Work Days
How many times have you wished that there was a parameter for DATEPART to allow you to check for workdays? While many of us may get stuck working 6 or 7 days a week, most of the world revolves on a 5 day work week. Monday through Friday. New author Jeff Moden brings us a method of easily calculating the number of workdays between any two dates.
2007-10-02 (first published: 2005-01-10)
71,717 reads
Blogs
How to Run Databases on Kubernetes: An 8-Step Guide
In this step-by-step tutorial, learn how to run MySQL, PostgreSQL, MongoDB, and other stateful...
Episode 11 of Simple Talks: Oracle
By Steve Jones
The 11th episode is now live, recorded a few weeks ago at the PASS...
A New Word: Mornden
By Steve Jones
mornden – n. the self-container pajama universe shared by two people on a long...
Forums
What is the best index strategy for a table that gets truncated?
Hi everyone My SSIS package does a bulk insert of csv files into a...
Blob Storage automated downloads
Dipping my toes into the waters of Azure and of course before I get...
Announcing SQL Server 2025
Comments posted to this topic are about the item Announcing SQL Server 2025
Question of the Day
Running Steve's Code
Can you run this code in any of your SQL Server 2019 databases without error?
CREATE OR ALTER PROCEDURE [dbo].[StevesAmazingProc]
AS
SELECT Consumer_ID ,
Trend_Category ,
Bit_Trace
FROM NewWorldDB.dbo.MarketTrend;
GO See possible answers