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A glance at SQL Server Denali CTP3 - DATEFROMPARTS
There is a new function in SQL Server Denali named DATEFROMPART. What is does, is to calculate a date from a number of user supplied parameters such as Year, Month and Date. Previously you had to use a...
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Code Audit - The Beginning
For the next few months, I will be involved in an interesting project for a mission critical application that our company have outsourced to a well-known and respected consulting company here Sweden....
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Do people want help? I mean, real help?
Or do they just want to continue with their old habits? The reason for this blog post is that I the last week have tried to help people on several forums. Most of them just want to know how to solve...
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Convert UTF-8 string to ANSI
CREATEFUNCTION dbo.fnConvertUtf8Ansi( @Source VARCHAR(MAX) )RETURNSVARCHAR(MAX)AS BEGIN DECLARE @Value SMALLINT = 160, @Utf8 CHAR(2), @Ansi CHAR(1) IF @Source NOTLIKE...
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Avoid stupid mistakes
Today I had the opportunity to debug a system with a client. I have to confess it took a while to figure out the bug, but here it isSELECTCOUNT(*) OfflineData Do you see the bug? Yes, there should be a...
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How to calculate the covariance in T-SQL
DECLARE @Sample TABLE ( x INTNOTNULL, y INTNOTNULL )INSERT @SampleVALUES (3, 9), (2, 7), (4, 12), (5, 15), (6, 17);WITH cteSource(x,...
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New Article series
I have started a new article series at Simple Talk. It's all about the transition from procedural programming to declarative programming.http://www.simple-talk.com/sql/ First article is found...
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The one feature that would make me invest in SSIS 2012
This week I was invited my Microsoft to give two presentations in Slovenia. My presentations went well and I had good energy and the audience was interacting with me.When I had some time over from...
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Remove all Extended Properties in a database
During my tests to port several databases to SQL Azure, one of the recurring things that fails export is the Extended Properties. So I just wanted to remove them. This is a simple wayh to list all...
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ISO week calculation for all years 1-9999 without dependencies
CREATE FUNCTION dbo.fnISOWEEK ( @Year SMALLINT, @Month TINYINT, @Day TINYINT ) RETURNS TINYINT AS BEGIN RETURN ( SELECT CASE WHEN nextYearStart <= theDate THEN 0 WHEN currYearStart <= theDate...
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