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boringsql.com | ||
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andreabergia.com
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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. | |
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michaelerasm.us
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| | | | | One of the coolest things I learned about in my Redshift journey has been Window Functions. Although Window functions aren’t a novel feature and exists in other SQL databases, they are a ... | |
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sqlserverfast.com
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| | | | | I skipped the last two T-SQL Tuesdays. But this month, I will participate again. The monthly blog party is once more hosted by Steve Jones. His chosen topic is: Window Functions. In his invitation, Steve specifically asks for examples where Window functions provided a neat solution to a real world problem. Well, sorry Steve, but... | |
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racum.blog
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| | | Recommendations, opinions and thoughts from Racum | ||
