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 jsloop.net
CTEs and partitioning with row_number() in SQL | jsloop
| | andreabergia.com
Introduction to SQL Window Functions / 2 ยท Andrea Bergia's Website
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| | As we have seen in the previous part, window functions are an usefull tool to solve a lot of SQL problems with great performances. Lets see some more tricks. LAG and LEAD revised We have already discussed the window functions LAG and LEAD. As we have said, they are used to get respectively the previous or next value in the window. What we havent mentioned is that you can not only take the previous, but also the record before (or after) it and so on.
| | dylanpaulus.com
How to Use a Common Table Expression (CTE) in SQL
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| | Common Table Expressions (CTEs) are my go-to tool when writing complex SQL queries. They can be thought of as working like sub-queries or temporary tables but with their own superpowers.
| | www.kdnuggets.com
SQL Group By and Partition By Scenarios: When and How to Combine Data in Data Science - KDnuggets
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| | Learn the generic scenarios and techniques of grouping and aggregating data, partitioning and ranking data in SQL, which will be very helpful in reporting requirements.
| | www.dragos.com
What Is OT Cybersecurity? | Dragos
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| Learn about OT cybersecurity and how it differs from IT cybersecurity in the first blog post of a new fundamentals series from Dragos and the SANS Institute.