Additional Articles


External Article

Building Code that Promotes Plan Re-usage

This article, the third in the T-SQL Best Practices series, discusses how to write your code to promote cached plan re-usage. Understanding how white space and comments impact whether a plan is cached or an existing plan is re-used can help you minimize the number of plans your application is caching.

2009-08-31

3,815 reads

External Article

How to find, compare and use the exact same session settings as another user in SQL Server

When diagnosing issues in SQL Server I've found that sometimes I need to be able to mimic a user's session state when attempting to repeat an error they may be receiving. The smallest differences can completely change the outcome, so I need to ensure all the session settings (QUOTED_IDENTIFIER, ANSI_NULLS, and so forth) are identical between the production session and my test session. Is there an easy way to determine these settings with a single query?

2009-08-31

2,627 reads

Technical Article

Kimball University: Five Alternatives for Better Employee Dimension Modeling

The employee dimension presents one of the trickier challenges in data warehouse modeling. These five approaches ease the complication of designing and maintaining a 'Reports To' hierarchy for ever-changing reporting relationships and organizational structures.

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2009-08-26

3,651 reads

Technical Article

The Ghost in the Machine

Now that hierarchical data structures are popular again because of XML, their full hierarchical processing is still being limited to flat two dimensional linear path processing by relational processing. This will change when database professionals realize that ANSI SQL relational processing can now support full multipath nonlinear hierarchical processing.

2009-08-25

3,326 reads

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Question of the Day

Using OPENJSON

I have some data in a table that looks like this:

BeerID BeerName    brewer               beerdescription
1      Becks       Interbrew            Beck's is a German-style pilsner beer 
2      Fat Tire    New Belgium          Toasty malt, gentle sweetness, flash of fresh hop bitterness.
3      Mac n Jacks Mac & Jack's Brewery This beer erupts with a floral, hoppy taste
4      Alaskan Amber Alaskan Brewing     Alaskan Brewing Amber Ale is an "alt" style beer
8      Kirin       Kirin Brewing         Kirin Ichiban is a Lager-type beer
If I run this, what is returned?
select t1.[key]
    from openjson((select t.* FROM Beer AS t for json path)) t1

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