1. T-SQL Power! Windows That Open Doors Adam Machanic @AdamMachanic

2. T-SQL POWER! © 2016 Adam Machanic Adam Machanic Consultant Boston, MA and Beyond Speaker PASS, TechEd, Connections … Writer Books, magazines, web sites Founder SQLBlog.com amachanic@gmail.com @AdamMachanic

3. T-SQL POWER! © 2016 Adam Machanic Agenda Background Lots of Demos(That’s it.)

4. T-SQL POWER! © 2016 Adam Machanic Windowing and Framing … 1010110110101010101110010100100010101001010010010010000101010 … Frames – as many as you need

5. T-SQL POWER! © 2016 Adam Machanic Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

6. T-SQL POWER! © 2016 Adam Machanic Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

7. T-SQL POWER! © 2016 Adam Machanic Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

8. T-SQL POWER! © 2016 Adam Machanic Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

9. T-SQL POWER! © 2016 Adam Machanic Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

10. T-SQL POWER! © 2016 Adam Machanic Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

11. T-SQL POWER! © 2016 Adam Machanic Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

12. T-SQL POWER! © 2016 Adam Machanic Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

13. T-SQL POWER! © 2016 Adam Machanic Partitioning and Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

14. T-SQL POWER! © 2016 Adam Machanic Partitioning and Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

15. T-SQL POWER! © 2016 Adam Machanic Partitioning and Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

16. T-SQL POWER! © 2016 Adam Machanic Partitioning and Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

17. T-SQL POWER! © 2016 Adam Machanic Partitioning and Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

18. T-SQL POWER! © 2016 Adam Machanic Partitioning and Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

19. T-SQL POWER! © 2016 Adam Machanic Partitioning and Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

20. T-SQL POWER! © 2016 Adam Machanic Partitioning and Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

21. T-SQL POWER! © 2016 Adam Machanic Partitioning and Framing Rows ROWS BETWEEN 1 PRECEDING AND CURRENT ROW ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING

22. T-SQL POWER! © 2016 Adam Machanic Commonly Used Window Function Types Ranking ROW_NUMBER RANK DENSE_RANK Analytic Offset LAG LEAD Aggregate SUM AVG COUNT MIN MAX Analytic Framed FIRST_VALUE LAST_VALUE

23. T-SQL POWER! © 2016 Adam Machanic Query Processor Iterators of Interest

24. T-SQL POWER! WINDOWS THAT OPEN DOORS demo

25. T-SQL POWER! © 2016 Adam Machanic Summary Window functions make complex T-SQL much easier Performance, on the other hand, is up to you Be creative! There are endless use cases for these features Beware of RANGE mode