There are a number of real-life reporting tasks in SQL that require a 'gaps and islands' analysis. There are a number of techniques around that work, but finding ones that scale well makes for a tougher, but interesting, challenge.
2014-02-28
3,824 reads
Some SQL problems are intriguing because, just when good methods emerge and are accepted, other alternative solutions are discovered. The fun of exploring problems such as 'Gaps and Islands' is all the greater when we have a thorough test-harness to try out the alternative solutions.
2013-08-13
2,738 reads
By Will Assaf
I recently reviewed, worked on, and added a similar example to the DATETIMEOFFSET Microsoft...
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How to install mysql-connector-python-8.4.0.zip it does not have setup.py. Checked also: mysql-connector-python-8.4.0.tar.gz
What happens when I run this code:
SELECT p.ProductName , p.ProductCategory FROM dbo.Product AS p WITH (NOLOCK, TABLOCK);See possible answers