SQL Server MVP Jeff Moden walks us through the classic problem of finding all the "Active" rows for the previous month using start and end dates. This is excellent for those new to T-SQL.
2014-01-30
8,130 reads
BULK INSERT and BCP are powerful, high performance tools for importing text files. SQL Server MVP Jeff Moden gives us several nifty tips in this introduction to BULK INSERT and BCP Format Files including "Skipping Columns" and the sequestration of bad rows while still loading all the good data.
2014-01-23
19,961 reads
Get correct answers to your SQL forum questions faster by making it easier to load your sample data and read your code.
2013-12-10 (first published: 2007-11-27)
202,411 reads
Learn how you can query a hierarchy of data and also return the results in an ordered fashion. A handy T-SQL skill that you will use over and over again.
2013-08-23 (first published: 2011-03-10)
20,620 reads
Another in the series of articles to help you "fill in the cracks" in your T-SQL knowledge. MVP Jeff Moden shows us a super simple, high performance method to solve this timeless problem.
2013-07-19 (first published: 2011-01-20)
23,768 reads
SQL Server MVP Jeff Moden shows us a quick and dirty bit of SQL Spackle to display the content of VARCHAR(MAX) and NVARCHAR(MAX).
2013-06-28 (first published: 2011-01-27)
21,235 reads
The Tally Table has proven to be a simple and elegant method for avoiding many varieties of RBAR. Unfortunately, one of its more common uses, that of a CSV splitter, has a well-known and serious performance problem. MVP Jeff Moden shows us what that problem is and how to correct it. (UPDATED with additional info and attachments on 5/12/2011).
2012-12-28 (first published: 2011-05-02)
128,488 reads
In this sequel to his first "Hierarchies on Steroids" article, SQL Server MVP Jeff Moden shows us how to build a pre-aggregated table that will answer most of the questions that you could ask of a typical hierarchy. Any bets on whether Santa is packin’ a Tally Table in his bag or not?
2012-11-15
17,447 reads
Another in our series of articles to help you fill in the cracks in your knowledge with SQL Spackle. MVP Jeff Moden shows us how IsNumeric works and how you should use it.
2012-09-14 (first published: 2010-12-01)
42,788 reads
Replacing multiple spaces with a single space is an old problem that people use loops, functions, and/or Tally tables for. Here's a set based method from MVP Jeff Moden.
2012-08-17 (first published: 2009-11-16)
60,983 reads
Since witnessing a rather nasty cyber attack around a year ago, I’ve been thinking...
By Steve Jones
My slides are here: VCS Primer Denver 2023 This was an overview of what...
By Steve Jones
The Future Data Driven 2023 virtual conference is coming on Wednesday, September 27. Register...
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